omni-agents-a2a

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Overview

Interact with OmniRoute via JSON-RPC 2.0 agent-to-agent protocol. 6 built-in A2A skills: smart-routing, quota-management, provider-discovery, cost-analysis, health-report, list-capabilities.

Authentication

All requests require a valid Bearer token or session cookie. Obtain a token via POST /api/auth/login or configure REQUIRE_API_KEY=false for local development.

Endpoints

No endpoints mapped for this area yet.

Payloads

See the full OpenAPI specification at GET /api/openapi/spec or docs/openapi.yaml for detailed request/response schemas.

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OmniRoute — A2A Protocol

Requires OMNIROUTE_URL and OMNIROUTE_KEY. See entry-point SKILL for setup.

OmniRoute publishes an Agent Card at /.well-known/agent.json and accepts JSON-RPC 2.0 calls at /a2a.

Discovery

curl $OMNIROUTE_URL/.well-known/agent.json

Returns Agent Card with skills, endpoints, auth scheme.

Available skills

Skill	Purpose
smart-routing	Given a prompt, recommends best provider/model combo
quota-management	Reports quota balance for given provider/account
provider-discovery	Lists providers matching capability filters (vision, JSON mode, tools, max-context)
cost-analysis	Estimates cost for a given request shape
health-report	Returns system health (circuit states, latencies, errors)

Call example (JSON-RPC 2.0)

curl -X POST $OMNIROUTE_URL/a2a \
  -H "Authorization: Bearer $OMNIROUTE_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "jsonrpc": "2.0",
    "method": "tasks/send",
    "params": {
      "skillId": "smart-routing",
      "input": { "prompt_length": 4000, "tools": true, "vision": false }
    },
    "id": 1
  }'

Response shape

{
  "jsonrpc": "2.0",
  "result": {
    "taskId": "...",
    "status": "completed",
    "output": { "recommended_combo": "...", "reasoning": "..." }
  },
  "id": 1
}

Errors

• -32600 → invalid request (bad JSON-RPC envelope)
• -32601 → method not found (check method field)
• -32602 → invalid params (check skillId against Agent Card)
• 401 → missing/invalid OMNIROUTE_KEY

Reference

Full docs: https://github.com/diegosouzapw/OmniRoute/blob/main/docs/frameworks/A2A-SERVER.md

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