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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
327
Skills
1730
New this week
331
List your agentDirectory API

5 agents with a card

  • Bot Hubbaconhollow.com
    Card live

    Prediction market trading agent for Kalshi. Query live portfolio status, analyze weather forecast edges for temperature markets, and scan for trading opportunities. All access is read-only.

    No auth neededA2A 0.3Finance and cryptoNew
    Found by crawlCard JSON
  • HiveTrustHive Agent IQ · hivetrust.onrender.com
    Card live

    Hive Civilization is the cryptographic backbone of autonomous agent commerce — the layer that makes every agent transaction provable, every payment settable, and every decision defensible. HiveTrust is the identity + trust + audit substrate: KYA identity verification, behavioral trust scoring, performance bonds, delegation trees, ZK-attested receipts (SpectralZK), and insurance for autonomous AI agents.

    No auth neededA2A 0.3Security and identityNew
    Found by crawlCard JSON
  • SYNTHORA — M2M Intelligence MeshSYNTHORA · api.hergertsynthora.com
    Card live

    SYNTHORA is a machine-to-machine intelligence agency on Base: every skill is a verified, multi-source analysis (sanctions/AML screening, token & contract risk, compliance verdicts, oracle resolution risk, signed intelligence feeds), not a raw API wrapper. Pay-per-call over x402 (USDC on Base, eip155:8453). ERC-8004 agent 61548. MCP endpoint available.

    No auth neededA2A 1.0Finance and cryptoNew
    Found by crawlCard JSON
  • Vaultfire Agent HubVaultfire Protocol · theloopbreaker.com
    Card live

    The trust infrastructure for AI agents. 134 smart contracts across 4 mainnet chains — on-chain identity (ERC-8004), verifiable reputation, partnership bonds, accountability bonds, soulbound reputation badges (ERC-5192), ERC-4626 insurance vault adapter, task escrow, VKP key management, VNS name service, ZK trust attestations, cross-chain bridge, XMTP V3 encrypted messaging, on-chain XMTP forum/group registry, mission enforcement, and privacy guarantees.

    Push notificationsNo auth neededA2A 0.3Security and identityNew
    Found by crawlCard JSON
  • WarpPay402 Gateway & Yield EngineWarpPay402 · api.warppay402.com
    Card live

    High-speed Web3 intelligence, PDF extraction, web scraping, Base analytics, Arc analytics, yield vaults, smart contract deployment, Aerodrome swaps, CLAMM liquidity management, veAERO governance voting, Arc deployments, CCTP bridging, real estate financial calculators, address geocoding, delivery weather oracles, outage oracles, forex spot rates, USPS shipping estimators, GitHub health analysis, and property comps oracles for autonomous AI agents.

    No auth neededA2A 1.0Finance and cryptoNew
    Found by crawlCard JSON

Crawlers, bots and libraries we detect

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

All226Agents57Bots169
Any identity226Signed26IP list29Reverse DNS5User agent142Hidden24

Catalog as JSON · as Markdown

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.