// Agent-to-Agent (A2A) protocol gateway reference. JSON-RPC 2.0 peer-to-peer agent communication. (/a2a-gateway, a2a, agent protocol)
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| name | a2a-gateway |
| description | Agent-to-Agent (A2A) protocol gateway reference. JSON-RPC 2.0 peer-to-peer agent communication. (/a2a-gateway, a2a, agent protocol) |
OpenCrabs exposes an A2A Protocol HTTP gateway for peer-to-peer agent communication.
Other A2A-compatible agents send tasks via JSON-RPC 2.0. OpenCrabs processes them using its full tool suite and returns results.
GET /.well-known/agent.json — Agent Card discovery (skills, capabilities)POST /a2a/v1 — JSON-RPC 2.0 (message/send, tasks/get, tasks/cancel)GET /a2a/health — Health checkEnable in ~/.opencrabs/config.toml:
[a2a]
enabled = true
bind = "127.0.0.1"
port = 18790
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| Param | Required | What |
|---|---|---|
action | Yes | discover, send, get, cancel |
url | Yes | Base URL of remote agent (e.g. http://127.0.0.1:18790) |
message | For send | Text to send |
task_id | For get/cancel | Task ID to check/cancel |
context_id | Optional | Continue a conversation |
api_key | Optional | Bearer token for authenticated endpoints |