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/a2a
- door code
- b43737ddd3d4e9ff
- protocol
- JSONRPC ·1.0
- 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 2h 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?
- 26 tools: Route to Base Token Allowance, Route to Base Token Balance, Route to Dependency Go No Go, Route to Commerce Receipt, Route to Base Transaction Status, Route to Base Wallet Balance, Route to Base Contract State, Route to Nws Active Alerts, ….
- 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 74.3%
last good check
of 26 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
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.
route-base-token-allowance unknown never probed
Discover and route to SALT19's base-token-allowance capability. 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.
route-base-token-balance unknown never probed
Discover and route to SALT19's base-token-balance capability. 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.
route-dependency-go-no-go unknown never probed
Discover and route to SALT19's dependency-go-no-go capability. 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.
route-commerce-receipt unknown never probed
Discover and route to SALT19's commerce-receipt capability. 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.
route-base-transaction-status unknown never probed
Discover and route to SALT19's base-transaction-status capability. Check current Base transaction receipt state and return PENDING, CONFIRMED_SUCCESS, or CONFIRMED_REVERTED with block and gas evidence.
route-base-wallet-balance unknown never probed
Discover and route to SALT19's base-wallet-balance capability. Read a wallet's live native ETH balance on Base at the latest block without an API key.
route-base-contract-state unknown never probed
Discover and route to SALT19's base-contract-state capability. Inspect whether a Base address currently has deployed bytecode and return code size plus best-effort ERC-20 metadata.
route-nws-active-alerts unknown never probed
Discover and route to SALT19's nws-active-alerts capability. Return current U.S. National Weather Service active alerts for a state or territory as compact structured JSON.
route-url-to-llm-markdown unknown never probed
Discover and route to SALT19's url-to-llm-markdown capability. Fetch a public web page, remove scripts/styles/navigation noise, and return bounded LLM-friendly Markdown plus canonical URL and fetch provenance.
route-npm-package-facts unknown never probed
Discover and route to SALT19's npm-package-facts capability. Return live npm registry facts for the latest or requested package version without the higher-priced vulnerability and adoption decision layer.
route-github-repo-facts unknown never probed
Discover and route to SALT19's github-repo-facts capability. Return current public GitHub repository facts such as archive state, license, stars, forks, branch and latest push without the premium adoption decision.
route-agent-code-change-risk-gate unknown never probed
Discover and route to SALT19's agent-code-change-risk-gate capability. 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.
route-github-repo-preflight unknown never probed
Discover and route to SALT19's github-repo-preflight capability. 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.
route-url-http-preflight unknown never probed
Discover and route to SALT19's url-http-preflight capability. 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.
route-agent-claim-output-verifier unknown never probed
Discover and route to SALT19's agent-claim-output-verifier capability. 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.
route-repo-adoption-go-no-go unknown never probed
Discover and route to SALT19's repo-adoption-go-no-go capability. 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.
route-dependency-upgrade-go-no-go unknown never probed
Discover and route to SALT19's dependency-upgrade-go-no-go capability. 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.
route-commerce-verify unknown never probed
Discover and route to SALT19's commerce-verify capability. 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.
route-agent-decision-preflight unknown never probed
Discover and route to SALT19's agent-decision-preflight capability. 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.
route-sec-recent-filings unknown never probed
Discover and route to SALT19's sec-recent-filings capability. Return recent SEC EDGAR filings for a company CIK from the live SEC submissions feed, normalized for agent consumption.
route-sec-company-facts unknown never probed
Discover and route to SALT19's sec-company-facts capability. Return selected latest SEC XBRL company facts from EDGAR's live companyfacts feed with source dates and units.
route-usgs-earthquakes unknown never probed
Discover and route to SALT19's usgs-earthquakes capability. Query recent USGS earthquake events by lookback window and minimum magnitude and return compact live event state.
route-npm-package-intel unknown never probed
Discover and route to SALT19's npm-package-intel capability. Check whether an npm package is deprecated or vulnerable before installing it, including vulnerabilities, license, maintenance, freshness, dependency health, and package.json risk signals.
route-agent-plan-verifier unknown never probed
Discover and route to SALT19's agent-plan-verifier capability. 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.
route-model-memory-fit unknown never probed
Discover and route to SALT19's model-memory-fit capability. 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.
route-commerce-decision unknown never probed
Discover and route to SALT19's commerce-decision capability. 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.
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.