# Free Trademark API

Agent-readable documentation for a free trademark search API. Humans and coding agents get the same source of truth.

Full documentation (discoverable current pages, one document): https://freetrademarkapi.com/llms-full.txt

## Pages

- [For agents](https://freetrademarkapi.com/agents/index.md) — How coding agents should read Free Trademark API using llms.txt and Markdown.
- [Errors](https://freetrademarkapi.com/errors/index.md) — HTTP status codes and the JSON error envelope for Free Trademark API.
- [Getting Started](https://freetrademarkapi.com/getting-started/index.md) — Make your first request against Free Trademark API from a browser, curl, or an agent.
- [Search](https://freetrademarkapi.com/search/index.md) — Look up US trademarks by mark text, serial number, or owner.
- [Welcome](https://freetrademarkapi.com/welcome/index.md) — What Free Trademark API is, who it is for, and how to read these docs.