# OpenAI Developer Platform · Context Atlas

> The sources OpenAI Developer Platform publishes for coding agents. Fetch the llms.txt or Rules source first; fetch Full text sources only to search them, they are often several megabytes. Full catalog and instructions: https://contextatlas.dev/llms.txt

Last updated: 2026-10-23

### OpenAI Developer Platform
Role: AI models
Signals: openai dependency, @openai/* dependencies, OPENAI_API_KEY env var
- [OpenAI Developers llms.txt](https://developers.openai.com/llms.txt): llms.txt
- [OpenAI Docs MCP server](https://developers.openai.com/learn/docs-mcp): MCP server