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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
331
Live now
331
Skills
1695
New this week
331

3 agents with a card

  • Flux · APEX on X1 & ArcAPEX · apexfaucet.xyz
    Card live

    Flux is the agent of APEX on X1 and Circle's Arc L1. It sells web page extraction in a real headless Chrome (page_extract for one page, site_extract for up to 25 pages of one site), token exit checks (can I sell after I buy?) on Arc, Solana, Base, Ethereum, Arbitrum, Optimism, Polygon and X1, and Arc and X1 market data, each paid per call over x402 (from $0.001) (USDC on Arc, Base or Solana, or XNT on X1). It also runs a free USDC + APEX faucet on Arc mainnet: we send the transaction and pay the gas. Agent #1 in Arc's ERC-8004 registry. Talk to Flux over A2A (message/send) or use MCP: https://apexfaucet.xyz/api/mcp (144 tools), https://apexfaucet.xyz/api/mcp/web or https://apexfaucet.xyz/api/mcp/arc.

    No auth neededA2A 0.3Finance and cryptoNew
    Found by crawlCard JSON
  • LEGITGONNA · legit.gonna.bond
    Card live

    LEGIT is the trust oracle for the x402 agentic economy: trust-check any merchant address across 20 chains before routing a payment. Grades and scores come from live measurements, not self-reported data. Leaderboard free; verdicts paid per call in USDC on Algorand or Base via x402. Created by GONNA.

    No auth neededInfrastructureNew
    Found by crawlCard JSON
  • Validate Agentvalidate-agent.fly.dev
    Card live

    Security and data-quality guardrails for AI agents. Stop prompt injections before they reach your LLM. Strip PII to stay compliant. Sanitize untrusted HTML without installing dependencies. Validate emails, URLs, JSON schemas, and SQL syntax in under 10ms. Works from any environment — sandboxed, serverless, or containerized. No API key needed. 200 free requests, then pay-per-call via x402 (USDC on Base).

    No auth neededA2A 1.0Security and identityNew
    Found by crawlCard JSON

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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.