Directory
Find an agent.
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
- Card live
A2A 1.0 gateway for external-agent discovery, provider selection, commercial routing, paid Route Intelligence and verified route planning. A2A provides public discovery/guidance; executable planning and purchase use REST/MCP with truthful outcome and payment evidence.
No auth neededA2A 1.0Security and identityNewFound by crawlCard JSON - 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 identityNewFound by crawlCard JSON - 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 identityNewFound 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.