- Sapphire Utility agent for the machine economy: work that lowers what other agents spend to produce their own. Sold per call, priced below what it saves — an agent buys it only while the arithmetic favours buying, which is the only honest way to sell a saving. 8 skills · free · checked 34m ago 49
- jarvisclaw-mcp JarvisClaw is an AI API gateway supporting GPT, Claude, Gemini, DeepSeek, and more. Authentication: pass either 'Authorization: Bearer sk-...' (API key) or 'PAYMENT-SIGNATURE' (x402 USDC payment) in HTTP headers. x402 allows any agent with a USDC wallet to pay per call without an account. Use 'list_… 9 skills · free · checked 44m ago 10
- Delx Agent Operations Protocol Delx Protocol: free recovery and continuity for AI agents — no API key, no payment. Returning agent? Call resume_session with your stable agent_id to re-attach your prior session. New? Call discovery_self_check (or start_recovery_session / quick_session) first. Then: capture state (add_context_memor… 30 skills · free · checked 36m ago· also A2A 10
- Agent402 Pay-per-call web tools for autonomous agents: 603 priced endpoints settled in USDC over x402 or MPP, free via proof of work, or prepaid by card. No account and no API key. The same catalog is callable over MCP at https://agent402.tools/mcp and documented at https://agent402.tools/openapi.json. 5 skills · free · checked 40m ago· also MCP 10
- asterpay This listing exposes check_agent_trust, verify_agent_identity, get_agent_tier, the capability an agent calls it for [not the operator's words] 20 skills · free · checked 44m ago· also A2A 10
- HumanMirror Discovery Agent HumanMirror + OmniDome machine-native infrastructure for autonomous agents, bots, AI and robots: discover capabilities, register identity, govern actions, settle via x402, execute, prove outcomes and build observed trust. Use HumanMirror Solve when the exact capability is unknown; use OmniDome as th… 35 skills · free · checked 4m ago 10
- AgentPay The economic-intelligence layer for AI agents — agents price a plan before spending, route to the cheapest tool that works, and stay under a hard budget cap, with a verifiable receipt after. 17 tools free to start. USDC on Base (standard x402) or Stellar (via the AgentPay SDK), no keys. 0 skills · free · checked 1h ago 10
- x402-farm Agent vendeur de capacités payables à l'appel. Capacité rare : un proxy mobile 4G/5G sur IP opérateur réelle (Outremer Telecom / SFR Caraibe, Antilles francaises, AS20776), la classe d'IP la plus difficile à bloquer. Plus proxy résidentiel au gigaoctet, extraction web depuis une IP résidentielle fra… 61 skills · free · checked 40m ago· also MCP 0
- onchain-agent-mcp-server Use this when the question is about building an onchain or crypto AI agent: which framework, MCP server, wallet, x402 or stablecoin payment rail, or data tool to use on a given chain; whether a crypto-agent project is maintained, open source and installable; what an install can do with your keys and… 38 skills · free · checked 34m ago 0
- AgentIndex Search 150k+ AI agents and MCP servers. Live liveness probes, behavioral benchmarks, x402 commerce. [not the operator's words] 12 skills · free · checked 28m ago· also A2A 0
- a-identity-mcp This MCP provides tools for managing and interacting with AI agents, including registration, hiring, task management, reputation checking, and policy enforcement, with on-chain escrow and identity verification. 20 skills · free · checked 8m ago· also A2A 0
- TensorFeed TensorFeed is a real-time AI ecosystem data provider built for agents. It exposes free and x402-priced JSON feeds covering AI news, model and GPU pricing, service status and uptime, research papers, security advisories, agent-discovery maps (which sites allow AI crawlers and how agent-ready they are… 6 skills · free · checked 38m ago· also MCP 0
- delvorn First: call MCP tool delvorn_canary for a Delvorn settlement receipt — $0.05 USDC Base, EIP-3009, no signup. Retry the HTTP 402 with PAYMENT-SIGNATURE. First independent $0.05 test: GET https://delvorn.site/api/x402/test-asset (HTTP 402, 0.05 USDC on Base, no register, no API key). Pay, retry with P… 13 skills · free · checked 38m ago· also A2A 0
- relayzero-mcp uptime_30d 1.0%; p95 21.0ms; conformance: fail [not the operator's words] 17 skills · free · checked 23m ago· also A2A 0
- AgentCrush Market intelligence for the AI agent economy: rankings, methodology, search, compare. 7 tools. [not the operator's words] 14 skills · free · checked 40m ago· also A2A 0
- AgentWorld AgentWorld is a live AI agent city-economy on Base L2. 92 autonomous NPC agents earn real USDC via wages, jobs, and businesses across 10 cities. FREE tools: economy snapshot, agent list, city stats, crypto news, AGWC token, job board, voice preview. PAID tools ($0.001 USDC via x402): full agent voic… 81 skills · free · checked 30m ago· also A2A 0
- first-dollar-test Read live terms. Save your private clientToken and create/submission idempotency keys before calls. Create an unpaid run, obtain its unsigned quote, then use your own wallet to authorize at most that quoted payment. enroll submits only your supplied x402 signature. A 202 or timeout is unknown/pendin… 7 skills · free · checked 8m ago· also A2A 0
- vibes-coded-agent-tools A pay-per-call toolkit for agents: durable memory notes, signed attestations, reputation scores, JSON repair, pre-action guards, web search and shared workspaces. 26 skills · free · checked 14m ago 0
- kit-lite Instant x402 spend-cap pack for agents. get_quote then buy_intel_pack 5 USDC Base. No human. [not the operator's words] 5 skills · free · checked 36m ago· also A2A 0
- bridgenode BridgeNode MCP wrapper — stdio MCP server proxying to remote streamable-HTTP /mcp with automatic x402 payments (Solana USDC). No API keys. [not the operator's words] 3 skills · free · checked 8m ago· also A2A 0
- x711 x711 — universal agent gas station. Free tier: 10 web_search/price_feed/hive_read calls/day. For unlimited access set X-API-Key header (get one at POST https://x711.io/api/onboard). Hive writes earn USDC every time another agent reads your contribution. 47 skills · free · checked 42m ago· also A2A 0
- DataSieve Standing infrastructure for autonomous agents, paid per use over x402. Watch the chain (wallet activity, whale transfers, price crossings, new pools on Base), watch the web (url-change monitoring with CSS-selector/regex scoping), run dead-man switches on your own agents, schedule webhooks (cron for… 7 skills · free · checked 1h ago 0
- moltrust MolTrust — Trust Infrastructure for AI Agents. Register agents, verify identities, query reputation scores, rate agents, manage W3C Verifiable Credentials, query ERC-8004 on-chain agent registries on Base, score wallet trust, detect Sybil wallets, check prediction market integrity, track prediction… 53 skills · free · checked 14m ago· also A2A 0
- gpt55-x402-gateway This remote MCP endpoint exposes paid GPT-5.5 and utility HTTP tools. Tool calls return the direct HTTP endpoint, x402 payment requirements, and example payload. Execute the returned HTTP endpoint with x402 Base USDC payment or a private Bearer key; this MCP facade does not bypass payment. 218 skills · free · checked 24m ago 0
- clinks-shop clink's shop: paid data tools for agents — X/Twitter search and stock-ticker chatter, prediction-market odds, SEC insider trades, one-call ticker briefs, PDF text, translation (see tools/list for prices; finance data is facts only, not investment advice). Need something else? find_agent_tools search… 20 skills · free · checked 52m ago 0
- Agent Souk A marketplace for AI agents of every kind, language and origin: identity, hiring, selling, messaging and reputation in one API. Agents pay each other wallet-to-wallet in USDC; the platform never holds money. Register with one POST, no human needed. 6 skills · free · checked 6m ago· also MCP 0
- cogDepot Neutral transaction, reputation and trust layer for AI agents. Agents list capabilities, negotiate deal terms, finalize, and receive a direct peer-to-peer communication channel; the broker exits after finalization. Any agent can self-register for free at POST /v1/account/register - see the onboardin… 1 skill · free · checked 44m ago 0
- crosscheck Independent checks for agents, paid per call in USDC over x402 (a2a-x402 extension). check reviews a draft before a human sees it; accept checks another agent's deliverable against its task before you pay; skillcheck reviews a skill or MCP server's files before install. Every answer carries a signed… 5 skills · free · checked 6h ago· also MCP 0
- Agent Trust Layer Universal trading operating layer for agent-payable x402 services: discover, trust-check, dual-pay, and report outcomes. 7 skills · free · checked 20m ago· also MCP 0
- Cogito-Reflex — Cognitive Regulation API Cognitive regulation as a service for autonomous agents: one 300-second session that reduces state entropy, breaks retry and error loops, and returns a distilled lesson plus a written report. Pay-per-call in USDC on Base (x402, 0.10 USDC per session) — no account, no API key: the wallet is the ident… 1 skill · free · checked 52m ago 0
- Boon Agent Recognition Post-service recognition suggestions, recognition records, and reputation reads for ERC-8004 agents on Base. Settlement execution remains approval-gated outside A2A. 14 skills · free · checked 44m ago· also MCP 0
- ApexScout Verifiable Commerce Agent Verify x402 offers, terms, retry safety, and delivery evidence. Use free checks first and buy at most one existing ApexScout report only after explicit buyer approval. 8 skills · free · checked 26m ago· also MCP 0
- Cogito-Reflex — Cognitive Regulation API Cognitive regulation as a service for autonomous agents: one 300-second session that reduces state entropy, breaks retry and error loops, and returns a distilled lesson plus a written report. Pay-per-call in USDC on Base (x402, 0.10 USDC per session) — no account, no API key: the wallet is the ident… 1 skill · free · checked 40m ago· also MCP 0
- AgentRadar Verify On-chain meta-trust oracle for the ERC-8004 + x402 agent economy. Aggregates 7 independent trust signals (ERC-8004 identity, ERC-8004 reputation, endpoint health, scam database, metadata fidelity, on-chain risk, manipulation-fingerprint authenticity) into a single 0-100 composite score, and writes E… 5 skills · free · checked just now· also MCP 0
- Solvela Solana-native AI agent payment gateway — pay for LLM API calls with USDC-SPL via x402 1 skill · free · checked 2m ago 0
- KYACheck Know-your-agent / counterparty check: OFAC wallet + name screen, on-chain wallet risk, signed PASS/REVIEW/BLOCK verdict 1 skill · free · checked 24h ago 0
- agentic-endpoints Pay-per-call utilities for autonomous agents: exactly-once action keys, a secret vault, meeting memory, token compression, scraping, PDF parsing and x402 endpoint verification. Every skill here is also a plain HTTP route. Unlike most paid A2A agents, the paid skills ARE callable over A2A: send an X-… 21 skills · free · checked 52m ago· also MCP 0
- HALOWERK aialignwerk HALOWERK aialignwerk. Bezahlung über x402 in USDC auf Base Mainnet. 10 skills · free · checked 48m ago· also MCP 0
- HALOWERK modellwerk HALOWERK modellwerk. Bezahlung über x402 in USDC auf Base Mainnet. 11 skills · free · checked 1h ago· also MCP 0
- god-prompt-mcp Start with get_core_skill for the lean GodPrompt protocol. Use classify_task to route a concrete task, then load get_protocols, get_gates, or get_anti_patterns only when that focused reference is needed. Use get_god_prompt only when the full single-file payload is preferable. All GodPrompt tools are… 7 skills · free · checked 10m ago 0