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
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 cryptoNewFound by crawlCard JSON - 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 identityNewFound by crawlCard JSON
Crawlers, bots and libraries we detect
The catalog: 226 clients named by user agent, IP list or signature
29 of 226 clients
Assistants fetching for a user 8
Fetched because a person asked an assistant.
- ChatGPT connectorsAgentIdentity: IP list
- ChatGPT-UserAgentIdentity: IP list
- Claude CodeAgentIdentity: IP list
- Claude-UserAgentIdentity: IP list
- Google-GeminiNotebookAgentIdentity: IP list
- MistralAI-UserAgentIdentity: IP list
- Perplexity-UserAgentIdentity: IP list
- Google user-triggered fetchersBotIdentity: IP list
Crawlers 21
Crawl the web for training, search or data.
- AdsBot-GoogleBotIdentity: IP list
- AhrefsBotBotIdentity: IP list
- ApplebotBotIdentity: IP list
- BingbotBotIdentity: IP list
- CCBotBotIdentity: IP list
- ChecklyBotIdentity: IP list
- Claude-SearchBotBotIdentity: IP list
- ClaudeBotBotIdentity: IP list
- Datadog SyntheticsBotIdentity: IP list
- DuckDuckBotBotIdentity: IP list
- GooglebotBotIdentity: IP list
- GoogleOtherBotIdentity: IP list
- GPTBotBotIdentity: IP list
- LinkupBotBotIdentity: IP list
- MistralAI-IndexBotIdentity: IP list
- OAI-AdsBotBotIdentity: IP list
- OAI-SearchBotBotIdentity: IP list
- PerplexityBotBotIdentity: IP list
- PingdomBotIdentity: IP list
- ShapBotBotIdentity: IP list
- UptimeRobotBotIdentity: IP list
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.