HTTP API
datanotes serve listens on http://127.0.0.1:27150 (httpServerPort in the settings, --host
for another address). Every request except GET / needs Authorization: Bearer <token>: the
owner’s token (httpServerToken in the settings file, generated at the first start) or an app
token (see Apps).
/datanotes/*: every operation of the API, with snake_case JSON bodies, e.g.POST /datanotes/rows/insert/ {"table": "book", "values": {...}}. AnX-Datanotes-Actorheader (JSON:session,harness,model,tool) attributes the writes.GET /vault/,GET /vault/<folder>/,GET /vault/<file>(raw Markdown, or note JSON withAccept: application/vnd.olrapi.note+json) andPOST /search/simple/?query=…, read-only, with the same responses as the Local REST API plugin, so a client that uses only these routes changes just the URL and the key.GET /: status, no token needed.GET /datanotes/openapi.json: OpenAPI 3.1 description of the/datanotes/*operations (generated from the catalogue), to generate clients in any language.
It binds to 127.0.0.1 unless --host says otherwise, and answers no CORS preflight, so web pages
cannot call it.
The description of the /datanotes/* routes is openapi.json. From JavaScript, use the
client; agents use the MCP server.