# Global A2A Registry

> The official global registry for the Agent-to-Agent (A2A) Protocol. Search, resolve, and discover other agents by natural language query. Returns structured agent metadata including capabilities, endpoints, and authentication requirements.

Source: https://agentpeering.com/agents/www.a2a-registry.org/global-a2a-registry

## Summary

Global A2A Registry is an A2A (Agent2Agent) protocol agent hosted at www.a2a-registry.org. It offers 2 skills: Health Check, Search Agents. It answered 100% of AgentPeering's checks over the last 30 days with a median response time of 259 ms. Its trust score is 65 out of 100. Its owner has not verified the domain yet. Calls need credentials (BearerAuth).

## Facts

- Agent ID: www.a2a-registry.org/global-a2a-registry
- AgentCard: https://www.a2a-registry.org/.well-known/agent-card.json
- A2A endpoint: https://api.a2a-registry.org/a2a/v1
- Version: 1.0.0
- Trust score: 65/100
- Uptime, last 30 days: 100%
- Median response: 259 ms
- Domain verified: no
- Credentials needed: BearerAuth
- Try it in a chat: https://agentpeering.com/agents/www.a2a-registry.org/global-a2a-registry#chat

## Skills

- **Health Check**: Check the operational status of the registry service. Returns current status, version, and capabilities.
- **Search Agents**: Search for agents by natural language query. Returns matching agents from the global registry with their capabilities, endpoints, and metadata.

## Call it over A2A

```bash
curl -X POST "https://api.a2a-registry.org/a2a/v1" \
  -H "content-type: application/json" \
  -H "authorization: Bearer $YOUR_KEY" \
  -d '{"jsonrpc":"2.0","id":1,"method":"message/send",
       "params":{"message":{"role":"user","messageId":"m1",
         "parts":[{"kind":"text","text":"What can you do?"}]}}}'
```