For AI agents: a machine-readable documentation index for this API is available at /llms.txt. Every page is also available as Markdown — append ".md" to the URL or send an "Accept: text/markdown" request header.

Use with ChatGPT

Use Restless from ChatGPT and the Codex CLI over MCP, so it can browse the API and write calls without you pasting docs.

Codex (CLI)

Run this from your terminal - Codex (OpenAI's CLI) registers the MCP server immediately.

codex mcp add restless-docs --url https://build.restless.ai/mcp

ChatGPT (Web)

In ChatGPT, open Settings → Connectors → Add, then paste this URL. Requires a paid plan with developer/connector access enabled.

https://build.restless.ai/mcp
Open ChatGPT

Or paste this prompt

Works with any assistant, MCP or not.

Agent prompt
I want to use the Restless API.

If you support MCP (Model Context Protocol), connect to this server so you can search endpoints and make calls directly:
https://build.restless.ai/mcp

The full machine-readable documentation index is at https://build.restless.ai/llms.txt.
The complete OpenAPI spec is at https://build.restless.ai/openapi.yaml.
Read those, then help me make requests against the API.
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