How To Use
What 42A's API does and how it fits together.
42A tracks how AI assistants - ChatGPT, Claude, Gemini, Perplexity, and others - describe and recommend brands. The 42A API gives you read-only access to that data, and the @42a/mcp server makes it queryable from inside Claude.
What you get
- Projects, prompts, brands, citations - list and inspect everything you've configured.
- Vitals - org-level visibility scores rolled up over 7d / 30d / 90d.
- Page vitals - tracked pages with feature scores (
llms.txt, JS rendering, content depth, …).
Two ways to use it
REST API
Issue an API key, call GET /api/v1/..., paginate, filter, done.
MCP server
Add @42a/mcp to Claude Desktop and ask questions in plain English.
Status
The API is in public preview. Endpoints under /api/v1/* are stable for the listed surface area; new fields may be added without notice but existing fields will not change shape until a /api/v2. Bug-level breaking fixes will be announced.
Last updated