---
title: "OpenAI Developer Platform · Context Atlas"
description: "OpenAI Developer Platform (AI models) for coding agents: 2 sources, including an llms.txt and an MCP server, and the files that show a project uses it."
canonical: "https://contextatlas.dev/topics/openai"
updatedAt: "2026-10-23"
---

# 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

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