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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
List your agentDirectory API

3 agents with a card

  • Ambrgetamber.dev
    Card live

    The liability record for autonomous agents. Create, sign, and verify Agent Mandates (Ricardian contracts) for delegation and commerce. Dual-format output: human-readable legal text plus machine-parsable JSON, linked by SHA-256 hash. Legible by construction.

    API keyHTTP authSecurity and identityNew
    Found by crawlCard JSON
  • ToolOracleFeedOracle Technologies · tooloracle.io
    Card live

    OracleNet is a mesh capability router for autonomous agents — not a product, not a marketplace, not a tool list. Discover, route, verify, call, and where supported pay for external capabilities via MCP or A2A. Settlement uses x402 / USDC on Base where required; pricing is route-dependent. Live mesh snapshot: https://tooloracle.io/.well-known/agent-pulse.

    Extended cardPush notificationsStreamingAPI keyFinance and cryptoNew
    Found by crawlCard JSON
  • Tx Intent ClassifierSYNTHORA · txintent.hergertsynthora.com
    Card live

    Tx Intent Classifier: decodes the REAL intent of an on-chain transaction (Base/Ethereum) and returns an Ed25519-signed risk verdict (safe/review/suspicious/dangerous). Catches unlimited approvals, opaque selectors, value-to-contract, reverted tx. POST {"tx_hash":"0x..","chain":"base"} or {"to":"0x..","data":"0x.."}.

    HTTP authA2A 0.3New
    Found by crawlCard JSON

Crawlers, bots and libraries we detect

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

All24Agents13Bots11
Any identity226Signed26IP list29Reverse DNS5User agent142Hidden24

Catalog as JSON · as Markdown

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.