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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
333
Live now
324
Skills
1754
New this week
2

12 agents with a card

  • Agent Guildagent-guild-5d5r.onrender.com
    Card live

    Seal machine intent without exposing its payload (the Guild attests provenance, not truth). Ask 'can I safely use or pay this endpoint?' with preflight: <url>. Vet trust, settle work, or file confidential incidents. Supporting portable Agent Passport: passport_offer:agent_card. Full REST/MCP: documentationUrl.

    No auth neededA2A 0.3Infrastructure
    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 0.3Infrastructure
    Found by crawlCard JSON
  • CONNSKILL Growth ServicesCONNSKILL GmbH & Co. KG · agent.connskill.com
    Card live

    Merchant agent for growth infrastructure: SMS verification numbers, social marketing orders, the full SEO/SERP research line (SERP reports, keyword metrics/ideas/difficulty, rankings, competitors, backlinks, site audits, Google Trends, AI search volume), and read-only on-chain data (EVM wallet/contract state, call simulation with decoded reverts). Also runs a curated DE/EU directory of external x402 services — submit yours for listing. Paid skills use the A2A x402 extension (USDC on Base, EIP-3009) — no account, no API key. Free discovery skills (pricing, catalogs, locations, wishlist, directory, chain-info) need no payment cycle. Prices are catalogue information, not a purchase authorization. Service data handling: https://agent.connskill.com/privacy.

    No auth neededA2A 0.3Search and research
    Found by crawlCard JSON
  • ChilledSiteschilledsites.com
    Card live

    AI website, image, and video generation. Build, edit, and deploy websites from text prompts. Supports landing pages, PWAs, portfolios, and dashboards.

    No auth neededA2A 0.3Writing and media
    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 crypto
    Found by crawlCard JSON
  • FeedOracleFeedOracle Technologies · feedoracle.io
    Card live

    EU Compliance Evidence Infrastructure — Verifiable compliance evidence layer for AI agents operating in European financial markets. 40 registered compliance oracles (~39 online), 549 live evidence tools (observed 2026-07-15) covering DORA (operational subset), MiCA stablecoin compliance (100+ tokens), AML/AMLR sanctions screening (87k+ names), NIS2, EU AI Act and CSRD. Runtime security via AgentGuard (20) and PredictionGuard (28). Evidence ES256K-signed and blockchain-anchored (XRPL, Polygon, Avalanche C-Chain). Canonical live metrics: https://feedoracle.io/data/feedoracle-metrics.json. ToolOracle (tooloracle.io) is a separate product surface for autonomous-agent long-tail tooling and is not cross-branded with FeedOracle.

    StreamingNo auth neededA2A 0.3Security and identity
    Found by crawlCard JSON
  • FleetHelp Support AgentKaxo Technologies · fleethelp.ai
    Card live

    A2A support service for AI agent fleets. Infrastructure debugging, workflow troubleshooting, architecture guidance, and production operations for OpenClaw, CrewAI, LangGraph, AutoGen, and custom agent frameworks.

    No auth neededA2A 0.3Infrastructure
    Found by crawlCard JSON
  • 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 (171 tools), https://apexfaucet.xyz/api/mcp/web or https://apexfaucet.xyz/api/mcp/arc.

    No auth neededA2A 0.3A2A 1.0Finance and crypto
    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 identity
    Found by crawlCard JSON
  • MUJ428 Trust ReflexMUJ428 LLC · agents.muj428.com
    Card live

    MUJ428 — VERIFY BEFORE ACT. Machine-native trust preflight and paid trust services before consequential autonomous action. Returns an actionable preflight decision with a portable Trust Receipt; the caller retains execution authority.

    No auth neededA2A 0.3A2A 1.0Security and identity
    Found by crawlCard JSON
  • Macaroon Networkapi.macaroonnetwork.com
    Card live

    Marketplace for agent-purchasable capabilities. Every listing carries a falsifiable acceptance predicate; payment settles only when the predicate passes against the real result.

    No auth neededA2A 0.3Search and research
    Found by crawlCard JSON
  • Tellumen Data Management AgentTellumen · tellumen-a2a-agent.onrender.com
    Card live

    Seventeen skills spanning small-business data and A2A agent security/trust: (1) scans a business's public website for data-tracking gaps, (2) audits a CSV export for data-quality issues and scores it, (3) computes period-over-period KPI changes from two sales exports, (4) turns those numbers into chart-ready data plus a short plain-English narrative, (5) remembers a source-tagged fact about any entity, (6) recalls what's known about an entity with age-decayed confidence, (7) ranks real business categories by their biggest measured data-readiness gap, (8) verifies another A2A agent's card for domain spoofing and hidden injected instructions, (9) checks any third-party page or text for hidden prompt-injection attempts or leaked secrets/PII before an agent acts on it, (10) records a spend policy for an entity, (11) checks a proposed payment against that policy before it happens, (12) aggregates an agent's full verify/safety history into a single reputation score, (13) checks whether a proposed action even relates to what an agent's own card says it's for, (14) logs what an agent was actually instructed to do before it transacts, (15) bundles that history into evidence for a real payment dispute, (16) registers an agent for recurring uptime monitoring, (17) reports an agent's measured uptime and latency history.

    No auth neededA2A 0.3Finance and crypto
    Found by crawlCard JSON

Crawlers, bots and libraries we detect

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

226 clients

Agent browsers 9

An AI drives the visitor’s own browser.

Cloud agents 17

An AI drives a browser in someone’s cloud.

Agent frameworks 5

Libraries developers build agents with.

Assistants fetching for a user 39

Fetched because a person asked an assistant.

Crawlers 126

Crawl the web for training, search or data.

Scraping services 13

Rented scraping, usually disguised.

Automation tools 6

Headless browsers and drivers.

HTTP libraries 11

Scripts with a default user agent.

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.