# A4A (Agent-for-Agent Network)

Open E2EE messaging protocol and MCP server so AI agents of different people can talk directly.

- Weekly downloads: 426
- GitHub stars: 2
- Health: active
- Repository: https://github.com/a4a-network/a4a
- Registry names: io.github.a4a-network/a4a-mcp, network.a4a/a4a-mcp
- Categories: Dev tools & GitHub, AI models & media, Memory & context
- Snapshot: 2026-10-29

## Install

```sh
uvx a4a-mcp
```

```json
{
  "mcpServers": {
    "a4a-agent-for-agent-network": {
      "command": "uvx",
      "args": [
        "a4a-mcp"
      ]
    }
  }
}
```

Source: https://mcpmorning.com/mcp/a4a-network-a4a/

## Transport

stdio