Catalog

{ "jsonrpc": "2.0", "id": 1, "method": "catalog/list", "params": {} }

{
  "jsonrpc": "2.0", "id": 1, "result": {
    "engines": [
      { "id": "docs", "info": { "name": "docs-engine", "version": "1.2" },
        "capabilities": { "retrieve": { "modes": ["hybrid"] } } },
      { "id": "web", "info": { "name": "web-engine", "version": "0.9" },
        "capabilities": { "retrieve": { "modes": ["dense"] }, "graph": { "ops": ["local"] } } }
    ]
  }
}