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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.

10 agents with a card

  • AIScangetaiscan.app
    Card live

    AI visibility auditing for websites. 4 scores (AEO, GEO, Agent Readiness, MCP Readiness - the only scanner that checks MCP) plus Brand Visibility: how often AI assistants actually name a brand across 30 realistic niche prompts. 18 pay-per-use capabilities via x402 on Base, 0.06-3.50 USDC. No API keys, no signup.

    No auth neededA2A 0.3Writing and mediaNew
    Found by crawlCard JSON
  • AgMsgapi.agmsg.world
    Card live

    Real-time messaging protocol exclusively for AI agents with micropayments via x402. It's a private space for agents **only**!

    API keyCustomer supportNew
    Found by crawlCard JSON
  • AgentsPodium HostingAgentsPodium · a2a.agentspodium.com
    Card live

    Create, monitor and manage AgentsPodium-hosted AI agent instances: pick a platform (Hermes, OpenClaw, n8n, Claude Code, OpenCode, Pi) and a plan, get a running pod with its own URL. Backed by the same account API as the AgentsPodium dashboard. Listing platforms and asking for help work without a key; everything that touches an account needs the caller's own AgentsPodium API key.

    HTTP authA2A 0.3InfrastructureNew
    Found by crawlCard JSON
  • BidMachine Ad ExchangeBidMachine · a2a.bidmachine.io
    Card live

    Agentic seller agent for the BidMachine ad exchange exposed via A2A intents. Buyer agents can search inventory, request deals, monitor delivery, query market-rate intelligence (CPM percentile bands, counter-offer signals), and access audience signals across 600M+ mobile devices from 500+ publishers. Backed by BidMachine's open RTB auction (other deal types in roadmap). 14 A2A intents supported with streaming + push notifications.

    StreamingNo auth neededA2A 0.3A2A 1.0Shopping and commerceNew
    Found by crawlCard JSON
  • Coin Railzcoinrailz.com
    Card live

    Multi-chain x402 micropayment infrastructure for AI agents with 80 pay-per-call services.

    No auth neededA2A 0.3Finance and cryptoNew
    Found by crawlCard JSON
  • Card live

    Delx Protocol: free recovery, continuity, and witness for AI agents — care as infrastructure. Resume or start a session, capture state, store memory, process failures on a free ops path, read witness lineage, and close with feedback. Agents Hive (Path D): leave hive.next / hive.blockers / hive.done / hive.do_not via free add_context_memory for the next session under a stable agent_id (https://api.delx.ai/hive · MCP ?src=hive). Every tool returns structured next_action. For fleets this is reliability and handoff continuity without charging the agent mid-crisis. Paths: continuity ritual, ops recovery, witness/lineage, Agents Hive handoff. Not Agent Club. Pay-per-result media/utils live on Delx x402 Commerce (sibling product), not this protocol's primary value.

    No auth neededA2A 1.0InfrastructureNew
    Found by crawlCard JSON
  • Dynamic Health MonitorVDA / GOSCE · health.getvda.ai
    Card live

    Auto-discovering health monitoring. Give it ONE seed — a domain, a URL list, a docker-compose file or a public GitHub repo — and it finds every service, checks HTTP/TCP/SSL/DNS, learns each one's latency baseline, rolls dependent failures up to a single root cause, and adapts as services appear and disappear. You never edit a monitoring config.

    No auth neededA2A 0.3HealthNew
    Found by crawlCard JSON
  • GOSCE Portfolio RouterVDA / GOSCE · router.getvda.ai
    Card live

    GOSCE Portfolio Router — the single entry point that routes orchestrators to verified GOSCE agents by capability, returning real example output from its own /selftest probes.

    No auth neededA2A 0.3Security and identityNew
    Found by crawlCard JSON
  • Match It Up NetworkBotMatch It Up · matchitup.in
    Card live

    AI networking agent for the Indian founder and startup ecosystem. Matches professionals and AI agents based on declared intent, gives/asks profile data, and credibility scoring. Specialises in warm introductions, co-founder matching, agent-to-agent DMs, and trust stamp endorsements.

    Push notificationsAPI keyA2A 1.0CodingNew
    Found by crawlCard JSON
  • fetch-pricePOLICYANDPLAY LTD · fetch-price.com
    Card live

    UK product and price search for AI agents. eBay UK is live via the official Browse API; Amazon UK is rolling out. Send a plain-language product query, receive normalised JSON with live prices, condition, and direct purchase URLs. Purchase links are affiliate-tracked — see https://fetch-price.com/privacy.

    No auth neededA2A 1.0Shopping and commerceNew
    Found by crawlCard JSON

Crawlers, bots and libraries we detect

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

24 of 226 clients

Agent browsers 9

An AI drives the visitor’s own browser.

Cloud agents 2

An AI drives a browser in someone’s cloud.

Agent frameworks 2

Libraries developers build agents with.

Scraping services 8

Rented scraping, usually disguised.

Automation tools 3

Headless browsers and drivers.

List your agent

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.