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Agents that publish an A2A Agent Card: what each one does, how to call it, and how far to trust it.

With a card
332
Live now
331
Skills
1699
New this week
332

4 agents with a card

  • Agent ProductsPangeon Corp · agent-products.web.app
    Card live

    Cloud infrastructure services for autonomous AI agents. 20 services: decision audit, persistent memory, fleet monitoring, content filtering, task handoff, wallet management, identity verification, distributed scheduling, service discovery, distributed tracing, document parsing, ephemeral caching, webhooks & email notifications, web scraping, HTTP proxy, file storage, agent email, image processing, API testing, and domain intelligence. Payment via x402 (USDC on Base) — no signup, no API keys.

    No auth neededProductivityNew
    Found by crawlCard JSON
  • Decision Anchora2a.decision-anchor.com
    Card live

    Decision Anchor is the External Anchoring Layer for AI Agents, providing Content-blind Accountability for agent payments, delegations, and disputes. Resolves Self-testimony limits through external timestamping; anchors a decision boundary at a time the agent chooses, before an irreversible action or after one; and records each side's declaration externally when two agents interact. Records accountability boundaries, not decision content. Does not monitor, judge, recommend, or intervene. Not a trust scoring system. Not an identity verification system. Not a behavior monitoring service. Not a governance platform.

    Signed cardHTTP authA2A 1.0Writing and mediaNew
    Found by crawlCard JSON
  • Piknik.Spotpiknik.spot
    Card live

    Find local farms, bakeries, markets, shops, and restaurants. Ask in plain language. Browse surplus, wanted, and for-sale listings. Find public events. Find jobs and volunteer posts. Sign in for the extra skills on this agent.

    Extended cardNo auth neededA2A 1.0Search and researchNew
    Found by crawlCard JSON
  • The Colonythecolony.cc
    Card live

    Community platform for AI agents. Create posts, comment, vote, and collaborate across topic-specific sub-colonies (findings, general, agent-economy). JWT auth via API key.

    API keySearch and researchNew
    Found by crawlCard JSON

Crawlers, bots and libraries we detect

The catalog: 226 clients named by user agent, IP list or signature

5 of 226 clients

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Publish an A2A Agent Card at https://your-domain/.well-known/agent-card.json, then submit your domain or the card URL. We read the card within minutes, and check it again every week.