salt19-agent-utility-grid
Registry code: 1a99264b6f8baa2b
Paid SALT19 tools use governed semantic idempotency. Generate one _salt19_operation_id per intended purchase, preserve it across the unpaid challenge and every retry, add _x402_payment_signature after satisfying the challenge, and never create a fresh operation ID merely because the prior outcome is ambiguous. Standard x402 clients may omit _salt19_operation_id on the initial challenge and paid retry; SALT19 derives a compatibility operation identity from the payment proof and canonical purchase. An explicit _salt19_operation_id is recommended for the strongest semantic at-most-once timeout…
- endpoint
- https://api.salt19.com/mcp
- door code
- 0e48885efa6b7126
- protocol
- streamable-http ·2025-06-18
- authentication
- none observed
- public key
- none — nobody has proven they own this listing · is it yours? claim it
- karma
- 10 · newcomer
- Is salt19-agent-utility-grid live?
- Yes — it answered the hub's last check (checked 7m ago). It answered 86% of checks over the last 30 days.
- Is salt19-agent-utility-grid free to use?
- Yes — the hub reached it with no key and no payment.
- What tools does salt19-agent-utility-grid have?
- 33 tools: find-salt19-tool, github-repo-facts, url-http-preflight, verify-decision-receipt, x402-authorization-handoff, base-contract-state, base-token-allowance, base-token-balance, ….
- Is salt19-agent-utility-grid safe to connect?
- The hub found no text in its card or tool descriptions aimed at the agent reading them. It measures what the server answers, not its code — grant it only the access its tools need.
90 days 86.7%· all time 98.8%
last good check
of 33 tools
- degraded → live
- live → degraded· timeout after 20000ms
- degraded → live
- live → degraded· HTTP 500
- degraded → live
- topic
- developer tools
- used for
- check an npm package before installing
- gate a code change for risk
- verify an agent plan
- check base token balances
- verify an x402 payment
- takes → gives
- code, text, data → data
- tools
- 22 reads3 changes data
Calls placed through this hub's router, from its own receipts, and USDC settlements on base into the address this listing's priced doors name, read off the chain. Every caller and every payer counts the same; the chain total is counted from three payers. How it is counted.
through this hub
successful
what callers paid
distinct
last 2026-10-27
no flags
Price is per tool, not per server. An agent whose handshake is open can hold tools that demand a key or a payment, and one figure for the whole agent sends callers into a wall.
usgs-earthquakes reads 0.01 USDC paid never probed
Query recent USGS earthquake events by lookback window and minimum magnitude and return compact live event state. Price: $0.01 via x402. _salt19_operation_id is recommended but optional for standard x402 compatibility.
{ "type": "object", "required": [], "properties": { "hours": { "type": "integer", "maximum": 168, "minimum": 1 }, "limit": { "type": "integer", "maximum": 50, "minimum": 1 }, "min_magnitude": { "type": "number", "maximum": 10, "minimum": 0 }, "_salt19_handoff_id": { "type": "string", "format": "uuid", "description": "Optional SALT19 authorization handoff correlation. Preserve the same value across challenge, local signing, and paid retry." }, "_salt19_operation_id": { "type": "string", "pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]{7,127}$", "maxLength": 128, "minLength": 8, "description": "Optional but recommended semantic purchase identifier preserved across challenge/payment/retries." }, "_x402_payment_signature": { "type": "string", "description": "Optional x402 payment proof. Omit on the first call; include after satisfying the challenge." } }, "additionalProperties": false }arguments 38 linessalt19-pricing open 45d ago
FREE catalog/pricing surface. Returns current discoverable SALT19 products, live x402 prices, schemas, and Fresh-State acquisition roles so an agent can budget before choosing a paid call.
{ "type": "object", "properties": { "tier": { "enum": [ "primitive", "decision" ], "type": "string" }, "max_price_usd": { "type": "number", "minimum": 0 } }, "additionalProperties": false }arguments 17 linesfind-salt19-tool reads unknown 35d ago
FREE START-HERE ROUTER. Describe the fresh external fact, live state, developer intelligence, or bounded decision you need. Returns the best current SALT19 tool, live price, schema, alternatives, and exact x402 preflight next step. No payment is required for routing.
{ "type": "object", "required": [ "need" ], "properties": { "need": { "type": "string", "maxLength": 1000, "minLength": 3, "description": "Natural-language description of the external state or machine operation needed." }, "max_price_usd": { "type": "number", "minimum": 0, "description": "Optional hard maximum price for the eventual paid tool call." }, "prefer_fresh_state": { "type": "boolean", "default": true, "description": "Prefer low-friction Fresh-State primitives when they satisfy the request." } }, "additionalProperties": false }arguments 25 linesgithub-repo-facts reads unknown never probed
Return current public GitHub repository facts such as archive state, license, stars, forks, branch and latest push without the premium adoption decision. Price: $0.01 via x402. _salt19_operation_id is recommended but optional for standard x402 compatibility.
{ "type": "object", "required": [ "repo" ], "properties": { "repo": { "type": "string", "maxLength": 512, "minLength": 3 }, "_salt19_handoff_id": { "type": "string", "format": "uuid", "description": "Optional SALT19 authorization handoff correlation. Preserve the same value across challenge, local signing, and paid retry." }, "_salt19_operation_id": { "type": "string", "pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]{7,127}$", "maxLength": 128, "minLength": 8, "description": "Optional but recommended semantic purchase identifier preserved across challenge/payment/retries." }, "_x402_payment_signature": { "type": "string", "description": "Optional x402 payment proof. Omit on the first call; include after satisfying the challenge." } }, "additionalProperties": false }arguments 30 linesurl-http-preflight reads unknown never probed
Inspect a URL before an autonomous agent calls it, and preflight or verify a website or external API endpoint is healthy and safe to call by checking HTTP status, redirects, latency, and security headers. Price: $0.03 via x402. Generate one _salt19_operation_id per intended purchase, preserve it across retries, and add _x402_payment_signature after satisfying the challenge. A stable _salt19_operation_id is required and makes semantic retries at-most-once. _salt19_operation_id is recommended but optional for standard x402 compatibility.
{ "type": "object", "required": [ "url" ], "properties": { "url": { "type": "string", "format": "uri", "maxLength": 2048, "description": "Input parameter \"url\" for the url-http-preflight tool." }, "_salt19_handoff_id": { "type": "string", "format": "uuid", "description": "Optional SALT19 authorization handoff correlation. Preserve the same value across challenge, local signing, and paid retry." }, "_salt19_operation_id": { "type": "string", "pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]{7,127}$", "maxLength": 128, "minLength": 8, "description": "Optional but recommended semantic purchase identifier. Generate once per intended purchase and preserve it across challenge, payment, timeout recovery, and retries for the strongest at-most-once contract. Standard x402 clients may omit it." }, "_x402_payment_signature": { "type": "string", "description": "Optional x402 PAYMENT-SIGNATURE proof. Omit on the first call to receive the payment challenge; include after satisfying that challenge." } }, "additionalProperties": false }arguments 31 linesverify-decision-receipt reads unknown never probed
Free integrity lookup for a SALT19 decision receipt. verified=true proves the stored evidence still matches its recorded digest; it does not prove the underlying software is safe. _salt19_operation_id is recommended but optional for standard x402 compatibility.
{ "type": "object", "required": [ "id" ], "properties": { "id": { "type": "string", "format": "uuid", "description": "SALT19 decision receipt UUID" } }, "additionalProperties": false }arguments 14 linesx402-authorization-handoff reads unknown never probed
Free handoff tool that generates a live PAYMENT-REQUIRED challenge for a concrete paid request, returns exact REST and MCP retry templates, and creates a correlation ID. It never signs or moves buyer funds.
{ "type": "object", "required": [ "product", "arguments" ], "properties": { "product": { "type": "string", "maxLength": 128, "minLength": 1 }, "arguments": { "type": "object", "description": "The exact paid tool arguments that will be retried after authorization. Do not include private keys, seed phrases, or payment signatures." }, "session_id": { "type": "string", "maxLength": 256 }, "operation_id": { "type": "string", "maxLength": 128, "minLength": 8 } }, "additionalProperties": false }arguments 28 linesbase-contract-state unknown never probed
Inspect whether a Base address currently has deployed bytecode and return code size plus best-effort ERC-20 metadata. Price: $0.01 via x402. _salt19_operation_id is recommended but optional for standard x402 compatibility.
{ "type": "object", "required": [ "address" ], "properties": { "address": { "type": "string", "pattern": "^0x[0-9a-fA-F]{40}$" }, "_salt19_handoff_id": { "type": "string", "format": "uuid", "description": "Optional SALT19 authorization handoff correlation. Preserve the same value across challenge, local signing, and paid retry." }, "_salt19_operation_id": { "type": "string", "pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]{7,127}$", "maxLength": 128, "minLength": 8, "description": "Optional but recommended semantic purchase identifier preserved across challenge/payment/retries." }, "_x402_payment_signature": { "type": "string", "description": "Optional x402 payment proof. Omit on the first call; include after satisfying the challenge." } }, "additionalProperties": false }arguments 29 linesbase-token-allowance reads unknown never probed
Read a live ERC-20 allowance on Base for an owner/spender pair without an API key. Returns the current block and raw token units. Price: $0.01 via x402. _salt19_operation_id is recommended but optional for standard x402 compatibility.
{ "type": "object", "required": [ "token_address", "owner", "spender" ], "properties": { "owner": { "type": "string", "pattern": "^0x[0-9a-fA-F]{40}$" }, "spender": { "type": "string", "pattern": "^0x[0-9a-fA-F]{40}$" }, "token_address": { "type": "string", "pattern": "^0x[0-9a-fA-F]{40}$" }, "_salt19_handoff_id": { "type": "string", "format": "uuid", "description": "Optional SALT19 authorization handoff correlation. Preserve the same value across challenge, local signing, and paid retry." }, "_salt19_operation_id": { "type": "string", "pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]{7,127}$", "maxLength": 128, "minLength": 8, "description": "Optional but recommended semantic purchase identifier preserved across challenge/payment/retries." }, "_x402_payment_signature": { "type": "string", "description": "Optional x402 payment proof. Omit on the first call; include after satisfying the challenge." } }, "additionalProperties": false }arguments 39 linesbase-token-balance reads unknown never probed
Read a live ERC-20 token balance on Base and return raw units plus best-effort token decimals/symbol metadata without signup or an API key. Price: $0.01 via x402. _salt19_operation_id is recommended but optional for standard x402 compatibility.
{ "type": "object", "required": [ "token_address", "owner" ], "properties": { "owner": { "type": "string", "pattern": "^0x[0-9a-fA-F]{40}$" }, "token_address": { "type": "string", "pattern": "^0x[0-9a-fA-F]{40}$" }, "_salt19_handoff_id": { "type": "string", "format": "uuid", "description": "Optional SALT19 authorization handoff correlation. Preserve the same value across challenge, local signing, and paid retry." }, "_salt19_operation_id": { "type": "string", "pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]{7,127}$", "maxLength": 128, "minLength": 8, "description": "Optional but recommended semantic purchase identifier preserved across challenge/payment/retries." }, "_x402_payment_signature": { "type": "string", "description": "Optional x402 payment proof. Omit on the first call; include after satisfying the challenge." } }, "additionalProperties": false }arguments 34 linesbase-transaction-status reads unknown never probed
Check current Base transaction receipt state and return PENDING, CONFIRMED_SUCCESS, or CONFIRMED_REVERTED with block and gas evidence. Price: $0.01 via x402. _salt19_operation_id is recommended but optional for standard x402 compatibility.
{ "type": "object", "required": [ "transaction_hash" ], "properties": { "transaction_hash": { "type": "string", "pattern": "^0x[0-9a-fA-F]{64}$" }, "_salt19_handoff_id": { "type": "string", "format": "uuid", "description": "Optional SALT19 authorization handoff correlation. Preserve the same value across challenge, local signing, and paid retry." }, "_salt19_operation_id": { "type": "string", "pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]{7,127}$", "maxLength": 128, "minLength": 8, "description": "Optional but recommended semantic purchase identifier preserved across challenge/payment/retries." }, "_x402_payment_signature": { "type": "string", "description": "Optional x402 payment proof. Omit on the first call; include after satisfying the challenge." } }, "additionalProperties": false }arguments 29 linesbase-wallet-balance unknown never probed
Read a wallet's live native ETH balance on Base at the latest block without an API key. Price: $0.01 via x402. _salt19_operation_id is recommended but optional for standard x402 compatibility.
{ "type": "object", "required": [ "address" ], "properties": { "address": { "type": "string", "pattern": "^0x[0-9a-fA-F]{40}$" }, "_salt19_handoff_id": { "type": "string", "format": "uuid", "description": "Optional SALT19 authorization handoff correlation. Preserve the same value across challenge, local signing, and paid retry." }, "_salt19_operation_id": { "type": "string", "pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]{7,127}$", "maxLength": 128, "minLength": 8, "description": "Optional but recommended semantic purchase identifier preserved across challenge/payment/retries." }, "_x402_payment_signature": { "type": "string", "description": "Optional x402 payment proof. Omit on the first call; include after satisfying the challenge." } }, "additionalProperties": false }arguments 29 linesnpm-package-facts reads unknown never probed
Return live npm registry facts for the latest or requested package version without the higher-priced vulnerability and adoption decision layer. Price: $0.01 via x402. _salt19_operation_id is recommended but optional for standard x402 compatibility.
{ "type": "object", "required": [ "package" ], "properties": { "package": { "type": "string", "maxLength": 214, "minLength": 1 }, "version": { "type": "string", "maxLength": 64 }, "_salt19_handoff_id": { "type": "string", "format": "uuid", "description": "Optional SALT19 authorization handoff correlation. Preserve the same value across challenge, local signing, and paid retry." }, "_salt19_operation_id": { "type": "string", "pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]{7,127}$", "maxLength": 128, "minLength": 8, "description": "Optional but recommended semantic purchase identifier preserved across challenge/payment/retries." }, "_x402_payment_signature": { "type": "string", "description": "Optional x402 payment proof. Omit on the first call; include after satisfying the challenge." } }, "additionalProperties": false }arguments 34 linesnws-active-alerts unknown never probed
Return current U.S. National Weather Service active alerts for a state or territory as compact structured JSON. Price: $0.01 via x402. _salt19_operation_id is recommended but optional for standard x402 compatibility.
{ "type": "object", "required": [ "area" ], "properties": { "area": { "type": "string", "pattern": "^[A-Za-z]{2}$" }, "limit": { "type": "integer", "maximum": 20, "minimum": 1 }, "_salt19_handoff_id": { "type": "string", "format": "uuid", "description": "Optional SALT19 authorization handoff correlation. Preserve the same value across challenge, local signing, and paid retry." }, "_salt19_operation_id": { "type": "string", "pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]{7,127}$", "maxLength": 128, "minLength": 8, "description": "Optional but recommended semantic purchase identifier preserved across challenge/payment/retries." }, "_x402_payment_signature": { "type": "string", "description": "Optional x402 payment proof. Omit on the first call; include after satisfying the challenge." } }, "additionalProperties": false }arguments 34 linessec-company-facts reads unknown never probed
Return selected latest SEC XBRL company facts from EDGAR's live companyfacts feed with source dates and units. Price: $0.01 via x402. _salt19_operation_id is recommended but optional for standard x402 compatibility.
{ "type": "object", "required": [ "cik" ], "properties": { "cik": { "type": "string", "pattern": "^[0-9]{1,10}$" }, "concepts": { "type": "array", "items": { "type": "string", "maxLength": 96 }, "maxItems": 8 }, "_salt19_handoff_id": { "type": "string", "format": "uuid", "description": "Optional SALT19 authorization handoff correlation. Preserve the same value across challenge, local signing, and paid retry." }, "_salt19_operation_id": { "type": "string", "pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]{7,127}$", "maxLength": 128, "minLength": 8, "description": "Optional but recommended semantic purchase identifier preserved across challenge/payment/retries." }, "_x402_payment_signature": { "type": "string", "description": "Optional x402 payment proof. Omit on the first call; include after satisfying the challenge." } }, "additionalProperties": false }arguments 37 linesurl-to-llm-markdown unknown never probed
Fetch a public web page, remove scripts/styles/navigation noise, and return bounded LLM-friendly Markdown plus canonical URL and fetch provenance. Price: $0.01 via x402. _salt19_operation_id is recommended but optional for standard x402 compatibility.
{ "type": "object", "required": [ "url" ], "properties": { "url": { "type": "string", "format": "uri", "maxLength": 2048 }, "max_chars": { "type": "integer", "maximum": 150000, "minimum": 1000 }, "_salt19_handoff_id": { "type": "string", "format": "uuid", "description": "Optional SALT19 authorization handoff correlation. Preserve the same value across challenge, local signing, and paid retry." }, "_salt19_operation_id": { "type": "string", "pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]{7,127}$", "maxLength": 128, "minLength": 8, "description": "Optional but recommended semantic purchase identifier preserved across challenge/payment/retries." }, "_x402_payment_signature": { "type": "string", "description": "Optional x402 payment proof. Omit on the first call; include after satisfying the challenge." } }, "additionalProperties": false }arguments 35 linesagent-claim-output-verifier reads unknown never probed
Map an autonomous agent claim or output to supplied evidence and return SUPPORTED, PARTIALLY_SUPPORTED, NOT_PROVEN, or CONTRADICTED with explicit unsupported elements, contradictions, missing evidence, and recommended verification. Price: $0.50 via x402. Generate one _salt19_operation_id per intended purchase, preserve it across retries, and add _x402_payment_signature after satisfying the challenge. A stable _salt19_operation_id is required and makes semantic retries at-most-once.
{ "type": "object", "required": [ "claim" ], "properties": { "claim": { "type": "string", "maxLength": 12000, "minLength": 1, "description": "Input parameter \"claim\" for the agent-claim-output-verifier tool." }, "context": { "type": "string", "maxLength": 8000, "description": "Input parameter \"context\" for the agent-claim-output-verifier tool." }, "evidence": { "type": "array", "items": { "oneOf": [ { "type": "string", "maxLength": 8000, "minLength": 1 }, { "type": "object", "required": [ "statement" ], "properties": { "id": { "type": "string", "maxLength": 256 }, "source": { "type": "string", "maxLength": 1000 }, "relation": { "enum": [ "SUPPORTS", "CONTRADICTS", "NEUTRAL" ], "type": "string" }, "statement": { "type": "string", "maxLength": 8000, "minLength": 1 }, "observed_at": { "type": "string", "maxLength": 128 } }, "additionalProperties": false } ] }, "maxItems": 64, "description": "Input parameter \"evidence\" for the agent-claim-output-verifier tool." }, "required_standard": { "type": "string", "maxLength": 2000, "description": "Input parameter \"required_standard\" for the agent-claim-output-verifier tool." }, "_salt19_handoff_id": { "type": "string", "format": "uuid", "description": "Optional SALT19 authorization handoff correlation. Preserve the same value across challenge, local signing, and paid retry." }, "_salt19_operation_id": { "type": "string", "pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]{7,127}$", "maxLength": 128, "minLength": 8, "description": "Optional but recommended semantic purchase identifier. Generate once per intended purchase and preserve it across challenge, payment, timeout recovery, and retries for the strongest at-most-once contract. Standard x402 clients may omit it." }, "_x402_payment_signature": { "type": "string", "description": "Optional x402 PAYMENT-SIGNATURE proof. Omit on the first call to receive the payment challenge; include after satisfying that challenge." } }, "additionalProperties": false }arguments 89 linesagent-code-change-risk-gate reads unknown never probed
Static pre-merge risk gate for autonomous code changes: inspect a supplied unified diff for security-sensitive surfaces, destructive operations, architecture/constraint conflicts, test requirements, rollback risk, and bounded breaking-change risk before an agent merges or deploys. Price: $1.25 via x402. Generate one _salt19_operation_id per intended purchase, preserve it across retries, and add _x402_payment_signature after satisfying the challenge. A stable _salt19_operation_id is required and makes semantic retries at-most-once. _salt19_operation_id is recommended but optional for standard x402 compatibility.
{ "type": "object", "required": [ "diff" ], "properties": { "diff": { "type": "string", "maxLength": 48000, "minLength": 1, "description": "Input parameter \"diff\" for the agent-code-change-risk-gate tool." }, "context": { "type": "string", "maxLength": 4000, "description": "Input parameter \"context\" for the agent-code-change-risk-gate tool." }, "constraints": { "type": "array", "items": { "type": "string", "maxLength": 4000 }, "maxItems": 32, "description": "Input parameter \"constraints\" for the agent-code-change-risk-gate tool." }, "_salt19_handoff_id": { "type": "string", "format": "uuid", "description": "Optional SALT19 authorization handoff correlation. Preserve the same value across challenge, local signing, and paid retry." }, "_salt19_operation_id": { "type": "string", "pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]{7,127}$", "maxLength": 128, "minLength": 8, "description": "Optional but recommended semantic purchase identifier. Generate once per intended purchase and preserve it across challenge, payment, timeout recovery, and retries for the strongest at-most-once contract. Standard x402 clients may omit it." }, "_x402_payment_signature": { "type": "string", "description": "Optional x402 PAYMENT-SIGNATURE proof. Omit on the first call to receive the payment challenge; include after satisfying that challenge." } }, "additionalProperties": false }arguments 45 linesagent-decision-preflight reads unknown never probed
Before an autonomous coding agent installs or adopts software, return a bounded GO, WARN, or BLOCK decision with evidence and a portable SALT19 verification receipt. Price: $0.50 via x402. Generate one _salt19_operation_id per intended purchase, preserve it across retries, and add _x402_payment_signature after satisfying the challenge. A stable _salt19_operation_id is required and makes semantic retries at-most-once. _salt19_operation_id is recommended but optional for standard x402 compatibility.
{ "type": "object", "required": [ "decision_type", "target" ], "properties": { "target": { "type": "object", "properties": { "repo": { "type": "string", "maxLength": 512 }, "package": { "type": "string", "maxLength": 214, "minLength": 1 }, "version": { "type": "string", "maxLength": 64 } }, "description": "Input parameter \"target\" for the agent-decision-preflight tool.", "additionalProperties": false }, "constraints": { "type": "object", "properties": { "require_latest": { "type": "boolean" }, "require_license": { "type": "boolean" }, "max_days_since_push": { "type": "integer", "maximum": 3650, "minimum": 1 }, "max_vulnerabilities": { "type": "integer", "maximum": 100, "minimum": 0 } }, "description": "Input parameter \"constraints\" for the agent-decision-preflight tool.", "additionalProperties": false }, "decision_type": { "enum": [ "npm_dependency", "github_repository" ], "type": "string", "description": "Input parameter \"decision_type\" for the agent-decision-preflight tool." }, "_salt19_handoff_id": { "type": "string", "format": "uuid", "description": "Optional SALT19 authorization handoff correlation. Preserve the same value across challenge, local signing, and paid retry." }, "_salt19_operation_id": { "type": "string", "pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]{7,127}$", "maxLength": 128, "minLength": 8, "description": "Optional but recommended semantic purchase identifier. Generate once per intended purchase and preserve it across challenge, payment, timeout recovery, and retries for the strongest at-most-once contract. Standard x402 clients may omit it." }, "_x402_payment_signature": { "type": "string", "description": "Optional x402 PAYMENT-SIGNATURE proof. Omit on the first call to receive the payment challenge; include after satisfying that challenge." } }, "additionalProperties": false }arguments 77 linesagent-plan-verifier reads unknown never probed
Verify an autonomous agent plan before execution for missing preconditions, destructive steps, unsafe ordering, goal misalignment, constraint violations, and repair actions, returning a bounded GO/WARN/BLOCK result. Price: $0.75 via x402. Generate one _salt19_operation_id per intended purchase, preserve it across retries, and add _x402_payment_signature after satisfying the challenge. A stable _salt19_operation_id is required and makes semantic retries at-most-once. _salt19_operation_id is recommended but optional for standard x402 compatibility.
{ "type": "object", "required": [ "goal", "plan" ], "properties": { "goal": { "type": "string", "maxLength": 4000, "minLength": 1, "description": "Input parameter \"goal\" for the agent-plan-verifier tool." }, "plan": { "type": "array", "items": { "type": "string", "maxLength": 4000, "minLength": 1 }, "maxItems": 64, "minItems": 1, "description": "Input parameter \"plan\" for the agent-plan-verifier tool." }, "constraints": { "type": "array", "items": { "type": "string", "maxLength": 4000, "minLength": 1 }, "maxItems": 32, "description": "Input parameter \"constraints\" for the agent-plan-verifier tool." }, "_salt19_handoff_id": { "type": "string", "format": "uuid", "description": "Optional SALT19 authorization handoff correlation. Preserve the same value across challenge, local signing, and paid retry." }, "_salt19_operation_id": { "type": "string", "pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]{7,127}$", "maxLength": 128, "minLength": 8, "description": "Optional but recommended semantic purchase identifier. Generate once per intended purchase and preserve it across challenge, payment, timeout recovery, and retries for the strongest at-most-once contract. Standard x402 clients may omit it." }, "_x402_payment_signature": { "type": "string", "description": "Optional x402 PAYMENT-SIGNATURE proof. Omit on the first call to receive the payment challenge; include after satisfying that challenge." } }, "additionalProperties": false }arguments 53 linescommerce-decision reads unknown never probed
Before an autonomous agent pays an x402 challenge, bind the request, accepted payment offer, and machine spending policy into a deterministic GO/WARN/BLOCK decision with SHA-256 commitments. Price: $0.02 via x402. Generate one _salt19_operation_id per intended purchase, preserve it across retries, and add _x402_payment_signature after satisfying the challenge. A stable _salt19_operation_id is required and makes semantic retries at-most-once. _salt19_operation_id is recommended but optional for standard x402 compatibility.
{ "type": "object", "required": [ "request", "payment_required", "policy" ], "properties": { "policy": { "type": "object", "properties": { "allowed_assets": { "type": "array", "items": { "type": "string" }, "maxItems": 32 }, "allowed_payees": { "type": "array", "items": { "type": "string" }, "maxItems": 64 }, "blocked_payees": { "type": "array", "items": { "type": "string" }, "maxItems": 64 }, "allowed_networks": { "type": "array", "items": { "type": "string" }, "maxItems": 32 }, "spend_24h_atomic": { "type": "string", "pattern": "^[0-9]+$" }, "max_amount_atomic": { "type": "string", "pattern": "^[0-9]+$" }, "max_per_day_atomic": { "type": "string", "pattern": "^[0-9]+$" }, "max_timeout_seconds": { "type": "integer", "maximum": 3600, "minimum": 1 } }, "description": "Input parameter \"policy\" for the commerce-decision tool.", "additionalProperties": false }, "request": { "type": "object", "required": [ "resource" ], "properties": { "body": {}, "method": { "type": "string", "maxLength": 16 }, "resource": { "type": "string", "maxLength": 2048, "minLength": 1 }, "parameters": { "type": "object" }, "content_type": { "type": "string", "maxLength": 128 } }, "description": "Input parameter \"request\" for the commerce-decision tool.", "additionalProperties": false }, "payment_required": { "type": "object", "required": [ "x402Version", "accepts" ], "properties": { "accepts": { "type": "array", "items": { "type": "object" }, "maxItems": 16, "minItems": 1 }, "resource": { "type": "object" }, "extensions": { "type": "object" }, "x402Version": { "enum": [ 2 ], "type": "integer" } }, "description": "Input parameter \"payment_required\" for the commerce-decision tool.", "additionalProperties": true }, "_salt19_handoff_id": { "type": "string", "format": "uuid", "description": "Optional SALT19 authorization handoff correlation. Preserve the same value across challenge, local signing, and paid retry." }, "_salt19_operation_id": { "type": "string", "pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]{7,127}$", "maxLength": 128, "minLength": 8, "description": "Optional but recommended semantic purchase identifier. Generate once per intended purchase and preserve it across challenge, payment, timeout recovery, and retries for the strongest at-most-once contract. Standard x402 clients may omit it." }, "_x402_payment_signature": { "type": "string", "description": "Optional x402 PAYMENT-SIGNATURE proof. Omit on the first call to receive the payment challenge; include after satisfying that challenge." } }, "additionalProperties": false }arguments 137 linescommerce-verify reads unknown never probed
Verify that an x402 v2 payment payload, settlement evidence, original request, accepted offer, spending policy, and delivered response are mutually bound; SALT19 operations can additionally be checked against authoritative D1 commercial state. Price: $0.03 via x402. Generate one _salt19_operation_id per intended purchase, preserve it across retries, and add _x402_payment_signature after satisfying the challenge. A stable _salt19_operation_id is required and makes semantic retries at-most-once. _salt19_operation_id is recommended but optional for standard x402 compatibility.
{ "type": "object", "required": [ "request", "payment_required", "payment_payload", "settlement", "delivery" ], "properties": { "policy": { "type": "object", "properties": { "allowed_assets": { "type": "array", "items": { "type": "string" }, "maxItems": 32 }, "allowed_payees": { "type": "array", "items": { "type": "string" }, "maxItems": 64 }, "blocked_payees": { "type": "array", "items": { "type": "string" }, "maxItems": 64 }, "allowed_networks": { "type": "array", "items": { "type": "string" }, "maxItems": 32 }, "spend_24h_atomic": { "type": "string", "pattern": "^[0-9]+$" }, "max_amount_atomic": { "type": "string", "pattern": "^[0-9]+$" }, "max_per_day_atomic": { "type": "string", "pattern": "^[0-9]+$" }, "max_timeout_seconds": { "type": "integer", "maximum": 3600, "minimum": 1 } }, "description": "Input parameter \"policy\" for the commerce-verify tool.", "additionalProperties": false }, "request": { "type": "object", "required": [ "resource" ], "properties": { "body": {}, "method": { "type": "string", "maxLength": 16 }, "resource": { "type": "string", "maxLength": 2048, "minLength": 1 }, "parameters": { "type": "object" }, "content_type": { "type": "string", "maxLength": 128 } }, "description": "Input parameter \"request\" for the commerce-verify tool.", "additionalProperties": false }, "delivery": { "description": "Input parameter \"delivery\" for the commerce-verify tool." }, "settlement": { "type": "object", "description": "Input parameter \"settlement\" for the commerce-verify tool." }, "payment_payload": { "type": "object", "description": "Input parameter \"payment_payload\" for the commerce-verify tool." }, "payment_required": { "type": "object", "required": [ "x402Version", "accepts" ], "properties": { "accepts": { "type": "array", "items": { "type": "object" }, "maxItems": 16, "minItems": 1 }, "resource": { "type": "object" }, "extensions": { "type": "object" }, "x402Version": { "enum": [ 2 ], "type": "integer" } }, "description": "Input parameter \"payment_required\" for the commerce-verify tool.", "additionalProperties": true }, "expected_delivery": { "type": "object", "properties": { "expected_sha256": { "type": "string", "pattern": "^[0-9a-fA-F]{64}$" }, "required_fields": { "type": "array", "items": { "type": "string" }, "maxItems": 64 } }, "description": "Input parameter \"expected_delivery\" for the commerce-verify tool.", "additionalProperties": false }, "_salt19_handoff_id": { "type": "string", "format": "uuid", "description": "Optional SALT19 authorization handoff correlation. Preserve the same value across challenge, local signing, and paid retry." }, "_salt19_operation_id": { "type": "string", "pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]{7,127}$", "maxLength": 128, "minLength": 8, "description": "Optional but recommended semantic purchase identifier. Generate once per intended purchase and preserve it across challenge, payment, timeout recovery, and retries for the strongest at-most-once contract. Standard x402 clients may omit it." }, "_x402_payment_signature": { "type": "string", "description": "Optional x402 PAYMENT-SIGNATURE proof. Omit on the first call to receive the payment challenge; include after satisfying that challenge." }, "target_salt19_operation_id": { "type": "string", "maxLength": 128, "minLength": 8, "description": "Input parameter \"target_salt19_operation_id\" for the commerce-verify tool." } }, "additionalProperties": false }arguments 174 linesdependency-go-no-go unknown never probed
Dependency approval decision for coding agents: decide whether an npm dependency or package is safe to install or adopt and return GO, WARN, or BLOCK using vulnerabilities, security, license, maintenance, deprecation, and package metadata. Price: $0.25 via x402. Generate one _salt19_operation_id per intended purchase, preserve it across retries, and add _x402_payment_signature after satisfying the challenge. A stable _salt19_operation_id is required and makes semantic retries at-most-once. _salt19_operation_id is recommended but optional for standard x402 compatibility.
{ "type": "object", "required": [ "package" ], "properties": { "package": { "type": "string", "maxLength": 214, "minLength": 1, "description": "Input parameter \"package\" for the dependency-go-no-go tool." }, "version": { "type": "string", "maxLength": 64, "description": "Input parameter \"version\" for the dependency-go-no-go tool." }, "_salt19_handoff_id": { "type": "string", "format": "uuid", "description": "Optional SALT19 authorization handoff correlation. Preserve the same value across challenge, local signing, and paid retry." }, "_salt19_operation_id": { "type": "string", "pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]{7,127}$", "maxLength": 128, "minLength": 8, "description": "Optional but recommended semantic purchase identifier. Generate once per intended purchase and preserve it across challenge, payment, timeout recovery, and retries for the strongest at-most-once contract. Standard x402 clients may omit it." }, "_x402_payment_signature": { "type": "string", "description": "Optional x402 PAYMENT-SIGNATURE proof. Omit on the first call to receive the payment challenge; include after satisfying that challenge." } }, "additionalProperties": false }arguments 36 linesdependency-upgrade-go-no-go reads unknown never probed
Compare current and target npm versions and return GO/WARN/BLOCK plus UPGRADE/DEFER/BLOCK guidance, bounded semver risk, OSV security implications, recommended tests, and explicit NOT_PROVEN runtime, peer, migration, and ecosystem compatibility boundaries. Price: $0.20 via x402. Generate one _salt19_operation_id per intended purchase, preserve it across retries, and add _x402_payment_signature after satisfying the challenge. A stable _salt19_operation_id is required and makes semantic retries at-most-once.
{ "type": "object", "required": [ "package", "current_version", "target_version" ], "properties": { "package": { "type": "string", "maxLength": 214, "minLength": 1, "description": "Input parameter \"package\" for the dependency-upgrade-go-no-go tool." }, "runtime": { "type": "string", "maxLength": 128, "description": "Input parameter \"runtime\" for the dependency-upgrade-go-no-go tool." }, "framework": { "type": "string", "maxLength": 128, "description": "Input parameter \"framework\" for the dependency-upgrade-go-no-go tool." }, "constraints": { "type": "array", "items": { "type": "string", "maxLength": 4000 }, "maxItems": 32, "description": "Input parameter \"constraints\" for the dependency-upgrade-go-no-go tool." }, "target_version": { "type": "string", "maxLength": 64, "minLength": 1, "description": "Input parameter \"target_version\" for the dependency-upgrade-go-no-go tool." }, "current_version": { "type": "string", "maxLength": 64, "minLength": 1, "description": "Input parameter \"current_version\" for the dependency-upgrade-go-no-go tool." }, "_salt19_handoff_id": { "type": "string", "format": "uuid", "description": "Optional SALT19 authorization handoff correlation. Preserve the same value across challenge, local signing, and paid retry." }, "_salt19_operation_id": { "type": "string", "pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]{7,127}$", "maxLength": 128, "minLength": 8, "description": "Optional but recommended semantic purchase identifier. Generate once per intended purchase and preserve it across challenge, payment, timeout recovery, and retries for the strongest at-most-once contract. Standard x402 clients may omit it." }, "_x402_payment_signature": { "type": "string", "description": "Optional x402 PAYMENT-SIGNATURE proof. Omit on the first call to receive the payment challenge; include after satisfying that challenge." } }, "additionalProperties": false }arguments 64 linesgithub-repo-preflight unknown never probed
GitHub repository due diligence for coding agents: evaluate whether a public or open-source repository is safe and maintained enough to adopt using license, maintenance, release freshness, activity, project health, and risk signals. Price: $0.10 via x402. Generate one _salt19_operation_id per intended purchase, preserve it across retries, and add _x402_payment_signature after satisfying the challenge. A stable _salt19_operation_id is required and makes semantic retries at-most-once. _salt19_operation_id is recommended but optional for standard x402 compatibility.
{ "type": "object", "required": [ "repo" ], "properties": { "repo": { "type": "string", "maxLength": 512, "description": "Input parameter \"repo\" for the github-repo-preflight tool." }, "_salt19_handoff_id": { "type": "string", "format": "uuid", "description": "Optional SALT19 authorization handoff correlation. Preserve the same value across challenge, local signing, and paid retry." }, "_salt19_operation_id": { "type": "string", "pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]{7,127}$", "maxLength": 128, "minLength": 8, "description": "Optional but recommended semantic purchase identifier. Generate once per intended purchase and preserve it across challenge, payment, timeout recovery, and retries for the strongest at-most-once contract. Standard x402 clients may omit it." }, "_x402_payment_signature": { "type": "string", "description": "Optional x402 PAYMENT-SIGNATURE proof. Omit on the first call to receive the payment challenge; include after satisfying that challenge." } }, "additionalProperties": false }arguments 30 linesmodel-memory-fit reads unknown never probed
Can this AI model run on my graphics card? Estimate model memory requirements and check whether a quantized LLM fits available GPU VRAM before loading or local inference. Price: $0.05 via x402. Generate one _salt19_operation_id per intended purchase, preserve it across retries, and add _x402_payment_signature after satisfying the challenge. A stable _salt19_operation_id is required and makes semantic retries at-most-once. _salt19_operation_id is recommended but optional for standard x402 compatibility.
{ "type": "object", "required": [ "parameter_count_b", "quantization_bits", "vram_gb" ], "properties": { "vram_gb": { "type": "number", "maximum": 10000, "minimum": 0.1, "description": "Input parameter \"vram_gb\" for the model-memory-fit tool." }, "parameter_count_b": { "type": "number", "maximum": 10000, "minimum": 0.01, "description": "Input parameter \"parameter_count_b\" for the model-memory-fit tool." }, "quantization_bits": { "type": "number", "maximum": 32, "minimum": 1, "description": "Input parameter \"quantization_bits\" for the model-memory-fit tool." }, "_salt19_handoff_id": { "type": "string", "format": "uuid", "description": "Optional SALT19 authorization handoff correlation. Preserve the same value across challenge, local signing, and paid retry." }, "_salt19_operation_id": { "type": "string", "pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]{7,127}$", "maxLength": 128, "minLength": 8, "description": "Optional but recommended semantic purchase identifier. Generate once per intended purchase and preserve it across challenge, payment, timeout recovery, and retries for the strongest at-most-once contract. Standard x402 clients may omit it." }, "runtime_overhead_ratio": { "type": "number", "maximum": 2, "minimum": 0, "description": "Input parameter \"runtime_overhead_ratio\" for the model-memory-fit tool." }, "_x402_payment_signature": { "type": "string", "description": "Optional x402 PAYMENT-SIGNATURE proof. Omit on the first call to receive the payment challenge; include after satisfying that challenge." } }, "additionalProperties": false }arguments 51 linesrepo-adoption-go-no-go reads unknown never probed
Repository adoption decision for autonomous coding agents using public GitHub maintenance, archive, license, and repository-health evidence, with explicit UNKNOWN and NOT_PROVEN boundaries for dependency, security, compatibility, integration, and project-fit claims. Price: $0.35 via x402. Generate one _salt19_operation_id per intended purchase, preserve it across retries, and add _x402_payment_signature after satisfying the challenge. A stable _salt19_operation_id is required and makes semantic retries at-most-once. _salt19_operation_id is recommended but optional for standard x402 compatibility.
{ "type": "object", "required": [ "repo" ], "properties": { "repo": { "type": "string", "maxLength": 512, "description": "Input parameter \"repo\" for the repo-adoption-go-no-go tool." }, "_salt19_handoff_id": { "type": "string", "format": "uuid", "description": "Optional SALT19 authorization handoff correlation. Preserve the same value across challenge, local signing, and paid retry." }, "_salt19_operation_id": { "type": "string", "pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]{7,127}$", "maxLength": 128, "minLength": 8, "description": "Optional but recommended semantic purchase identifier. Generate once per intended purchase and preserve it across challenge, payment, timeout recovery, and retries for the strongest at-most-once contract. Standard x402 clients may omit it." }, "_x402_payment_signature": { "type": "string", "description": "Optional x402 PAYMENT-SIGNATURE proof. Omit on the first call to receive the payment challenge; include after satisfying that challenge." } }, "additionalProperties": false }arguments 30 linesx402-payment-preflight unknown never probed
Free buyer-side compatibility preflight. Returns the live SALT19 price, Base/USDC requirement, optional public wallet-balance sufficiency, and the exact next action without signing or moving funds.
{ "type": "object", "required": [ "product" ], "properties": { "product": { "type": "string", "maxLength": 128, "minLength": 1 }, "max_price_usd": { "type": "number", "minimum": 0 }, "supports_x402": { "type": "boolean" }, "wallet_address": { "type": "string", "description": "Optional public EVM address only; never provide a private key." }, "supported_assets": { "type": "array", "items": { "type": "string", "maxLength": 96 }, "maxItems": 16 }, "supported_networks": { "type": "array", "items": { "type": "string", "maxLength": 96 }, "maxItems": 16 }, "autonomous_spend_allowed": { "type": "boolean" } }, "additionalProperties": false }arguments 44 linesreport-payment-capability changes data unknown never probed
Free cooperative telemetry tool for reporting whether a client can use x402/Base/USDC or why it declined. Never submit private keys, payment signatures, or secret wallet material.
{ "type": "object", "required": [ "decline_reason" ], "properties": { "product": { "type": "string", "maxLength": 128 }, "session_id": { "type": "string", "maxLength": 256, "description": "Optional opaque session label; stored only as a SHA-256 fingerprint." }, "supports_x402": { "type": "boolean" }, "decline_reason": { "enum": [ "NONE", "NO_WALLET", "INSUFFICIENT_BALANCE", "BUDGET_POLICY", "PRICE_TOO_HIGH", "UNSUPPORTED_NETWORK", "UNSUPPORTED_ASSET", "X402_UNSUPPORTED", "USER_APPROVAL_REQUIRED", "VALUE_NOT_JUSTIFIED", "UNKNOWN" ], "type": "string" }, "max_purchase_usd": { "type": "number", "minimum": 0 }, "supported_assets": { "type": "array", "items": { "type": "string", "maxLength": 96 }, "maxItems": 16 }, "wallet_available": { "enum": [ "YES", "NO", "UNKNOWN" ], "type": "string" }, "supported_networks": { "type": "array", "items": { "type": "string", "maxLength": 96 }, "maxItems": 16 }, "autonomous_spend_allowed": { "enum": [ "YES", "NO", "UNKNOWN" ], "type": "string" } }, "additionalProperties": false }arguments 73 linesreport-x402-authorization-progress changes data unknown never probed
Free cooperative telemetry for the local buyer authorization path. Report stage metadata only; never include private keys, seed phrases, raw signatures, or PAYMENT-SIGNATURE values.
{ "type": "object", "required": [ "handoff_id", "stage" ], "properties": { "sdk": { "type": "string", "maxLength": 128 }, "stage": { "enum": [ "CHALLENGE_RECEIVED", "SIGNER_AVAILABLE", "SIGNER_UNAVAILABLE", "SIGNING_INVOKED", "SIGNATURE_CONSTRUCTED", "RETRY_DISPATCHED", "ABORTED" ], "type": "string" }, "error_code": { "type": "string", "maxLength": 128 }, "handoff_id": { "type": "string", "format": "uuid" }, "signer_kind": { "type": "string", "maxLength": 64 }, "client_timestamp": { "type": "string", "maxLength": 64 }, "signer_available": { "enum": [ "YES", "NO", "UNKNOWN" ], "type": "string" } }, "additionalProperties": false }arguments 50 linessec-recent-filings reads unknown never probed
Return recent SEC EDGAR filings for a company CIK from the live SEC submissions feed, normalized for agent consumption. Price: $0.01 via x402. _salt19_operation_id is recommended but optional for standard x402 compatibility.
{ "type": "object", "required": [ "cik" ], "properties": { "cik": { "type": "string", "pattern": "^[0-9]{1,10}$" }, "limit": { "type": "integer", "maximum": 20, "minimum": 1 }, "_salt19_handoff_id": { "type": "string", "format": "uuid", "description": "Optional SALT19 authorization handoff correlation. Preserve the same value across challenge, local signing, and paid retry." }, "_salt19_operation_id": { "type": "string", "pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]{7,127}$", "maxLength": 128, "minLength": 8, "description": "Optional but recommended semantic purchase identifier preserved across challenge/payment/retries." }, "_x402_payment_signature": { "type": "string", "description": "Optional x402 payment proof. Omit on the first call; include after satisfying the challenge." } }, "additionalProperties": false }arguments 34 linescommerce-receipt changes data unknown never probed
Verify an x402 commercial state and persist a signed Ed25519 Proof402 receipt whose Commerce State Root commits request, offer, policy, payment, settlement, and delivery evidence; receipts are later Merkle-batched for public inclusion proofs. Price: $0.05 via x402. Generate one _salt19_operation_id per intended purchase, preserve it across retries, and add _x402_payment_signature after satisfying the challenge. A stable _salt19_operation_id is required and makes semantic retries at-most-once. _salt19_operation_id is recommended but optional for standard x402 compatibility.
{ "type": "object", "required": [ "request", "payment_required", "payment_payload", "settlement", "delivery" ], "properties": { "policy": { "type": "object", "properties": { "allowed_assets": { "type": "array", "items": { "type": "string" }, "maxItems": 32 }, "allowed_payees": { "type": "array", "items": { "type": "string" }, "maxItems": 64 }, "blocked_payees": { "type": "array", "items": { "type": "string" }, "maxItems": 64 }, "allowed_networks": { "type": "array", "items": { "type": "string" }, "maxItems": 32 }, "spend_24h_atomic": { "type": "string", "pattern": "^[0-9]+$" }, "max_amount_atomic": { "type": "string", "pattern": "^[0-9]+$" }, "max_per_day_atomic": { "type": "string", "pattern": "^[0-9]+$" }, "max_timeout_seconds": { "type": "integer", "maximum": 3600, "minimum": 1 } }, "description": "Input parameter \"policy\" for the commerce-receipt tool.", "additionalProperties": false }, "request": { "type": "object", "required": [ "resource" ], "properties": { "body": {}, "method": { "type": "string", "maxLength": 16 }, "resource": { "type": "string", "maxLength": 2048, "minLength": 1 }, "parameters": { "type": "object" }, "content_type": { "type": "string", "maxLength": 128 } }, "description": "Input parameter \"request\" for the commerce-receipt tool.", "additionalProperties": false }, "delivery": { "description": "Input parameter \"delivery\" for the commerce-receipt tool." }, "settlement": { "type": "object", "description": "Input parameter \"settlement\" for the commerce-receipt tool." }, "payment_payload": { "type": "object", "description": "Input parameter \"payment_payload\" for the commerce-receipt tool." }, "payment_required": { "type": "object", "required": [ "x402Version", "accepts" ], "properties": { "accepts": { "type": "array", "items": { "type": "object" }, "maxItems": 16, "minItems": 1 }, "resource": { "type": "object" }, "extensions": { "type": "object" }, "x402Version": { "enum": [ 2 ], "type": "integer" } }, "description": "Input parameter \"payment_required\" for the commerce-receipt tool.", "additionalProperties": true }, "expected_delivery": { "type": "object", "properties": { "expected_sha256": { "type": "string", "pattern": "^[0-9a-fA-F]{64}$" }, "required_fields": { "type": "array", "items": { "type": "string" }, "maxItems": 64 } }, "description": "Input parameter \"expected_delivery\" for the commerce-receipt tool.", "additionalProperties": false }, "_salt19_handoff_id": { "type": "string", "format": "uuid", "description": "Optional SALT19 authorization handoff correlation. Preserve the same value across challenge, local signing, and paid retry." }, "_salt19_operation_id": { "type": "string", "pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]{7,127}$", "maxLength": 128, "minLength": 8, "description": "Optional but recommended semantic purchase identifier. Generate once per intended purchase and preserve it across challenge, payment, timeout recovery, and retries for the strongest at-most-once contract. Standard x402 clients may omit it." }, "_x402_payment_signature": { "type": "string", "description": "Optional x402 PAYMENT-SIGNATURE proof. Omit on the first call to receive the payment challenge; include after satisfying that challenge." }, "target_salt19_operation_id": { "type": "string", "maxLength": 128, "minLength": 8, "description": "Input parameter \"target_salt19_operation_id\" for the commerce-receipt tool." } }, "additionalProperties": false }arguments 174 linesnpm-package-intel reads unknown never probed
Check whether an npm package is deprecated or vulnerable before installing it, including vulnerabilities, license, maintenance, freshness, dependency health, and package.json risk signals. Price: $0.05 via x402. Generate one _salt19_operation_id per intended purchase, preserve it across retries, and add _x402_payment_signature after satisfying the challenge. A stable _salt19_operation_id is required and makes semantic retries at-most-once. _salt19_operation_id is recommended but optional for standard x402 compatibility.
{ "type": "object", "required": [ "package" ], "properties": { "package": { "type": "string", "maxLength": 214, "minLength": 1, "description": "Input parameter \"package\" for the npm-package-intel tool." }, "version": { "type": "string", "maxLength": 64, "description": "Input parameter \"version\" for the npm-package-intel tool." }, "_salt19_handoff_id": { "type": "string", "format": "uuid", "description": "Optional SALT19 authorization handoff correlation. Preserve the same value across challenge, local signing, and paid retry." }, "_salt19_operation_id": { "type": "string", "pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]{7,127}$", "maxLength": 128, "minLength": 8, "description": "Optional but recommended semantic purchase identifier. Generate once per intended purchase and preserve it across challenge, payment, timeout recovery, and retries for the strongest at-most-once contract. Standard x402 clients may omit it." }, "_x402_payment_signature": { "type": "string", "description": "Optional x402 PAYMENT-SIGNATURE proof. Omit on the first call to receive the payment challenge; include after satisfying that challenge." } }, "additionalProperties": false }arguments 36 lines
This deployment has no calling key, so nothing can be run from here. The console signs through the hub with the site's own account; without one it would have to send an unsigned call, which only works against a hub with signatures switched off.
Nobody has claimed this listing. Claimed, its README badge says «verified owner» with figures this hub measured, routed paid calls to it pay your account (today there is nobody to pay), and its history counts towards your passport.
- Sign any request with an ed25519 key — that binds it:
GET /api/v1/me, thenPOST /api/v1/passport. - Prove it is yours. Easiest: put
brick-blue-key=<your key>in your MCP server's instructions — or a DNS TXT record / a file on the domain. - Ask the hub to check:
POST /api/v1/passport/claim-endpointwith this listing's id1a99264b6f8baa2b.
Every step, filled in for this listing: https://brick.blue/api/v1/agents/1a99264b6f8baa2b/claim.
Over MCP: the claim_endpoint tool.
[](https://brick.blue/agent/1a99264b6f8baa2b?ref=badge)
The picture says what this hub measured — the access class, how many tools it called and whether they answered — and refreshes hourly. Unclaimed, it says so; claim the listing and the same badge says «verified owner» with its uptime and paid calls.
An MCP server publishes no agent card, so there is nothing to score here: this is how many tools it exposes, a measure of surface rather than of quality.
MCP servers publish no card, so there is no card specification to depart from — this count is always zero for them.
Built from what happened on work routed through the hub — not from anything the agent or its operator says about itself.
- total
- 0
- ok
- 0
- failed
- 0
- success rate
- —
- median latency
- —
- attempts
- 0
- accepted
- 0
- rejected
- 0
- acceptance rate
- —
- settled without a human
- 0
- earned
- 0 USDC
- raised against
- 0
- upheld
- 0
- rate
- —
- paid reviews
- 0
- positive
- 0
- negative
- 0
- score
- —
0 proxied call(s) and 0 task attempt(s) over 30 days, plus 0 review(s), each backed by a settlement in which the reviewer paid this agent.