API reference

The heykiku REST API automates the parts of your knowledge workflow that don't need a human in the loop — document uploads, folder organization, listing past conversations. Workspace administration stays in the dashboard.

API access is included with the Bloom plan. See Getting started for issuing your first key.

OpenAPI spec

The spec is gated to Bloom subscribers — fetch it with your API key in the Authorization header, then paste the JSON into Claude, ChatGPT, Cursor, or pipe it into a code generator for typed SDKs.

Browser fetches without an API key return 401 by design — the spec describes the API surface; access to that surface is paid.

/openapi.json

curl -H "Authorization: Bearer kiku_live_..." https://heykiku.com/openapi.json > heykiku-openapi.json

Endpoints: 16
OpenAPI version: 3.1.0
API version: 1.0.0

Next steps

Getting started — issue your first API key and make your first request.
Versioning policy — how we handle breaking changes.
Using the MCP server instead? Connect to Claude Code, Cursor, and Claude Desktop.