OpenAI Docs
Provide authoritative, current guidance from OpenAI developer docs using the developers.openai.com MCP server. Always prioritize the developer docs MCP tools over web.run for OpenAI-related questions. Only if the MCP server is installed and returns no meaningful results should you fall back to web search.
Quick start
- •Use
mcp__openaiDeveloperDocs__search_openai_docsto find the most relevant doc pages. - •Use
mcp__openaiDeveloperDocs__fetch_openai_docto pull exact sections and quote/paraphrase accurately. - •Use
mcp__openaiDeveloperDocs__list_openai_docsonly when you need to browse or discover pages without a clear query.
OpenAI product snapshots
- •Apps SDK: Build ChatGPT apps by providing a web component UI and an MCP server that exposes your app's tools to ChatGPT.
- •Responses API: A unified endpoint designed for stateful, multimodal, tool-using interactions in agentic workflows.
- •Chat Completions API: Generate a model response from a list of messages comprising a conversation.
- •Codex: OpenAI's coding agent for software development that can write, understand, review, and debug code.
- •gpt-oss: Open-weight OpenAI reasoning models (gpt-oss-120b and gpt-oss-20b) released under the Apache 2.0 license.
- •Realtime API: Build low-latency, multimodal experiences including natural speech-to-speech conversations.
- •Agents SDK: A toolkit for building agentic apps where a model can use tools and context, hand off to other agents, stream partial results, and keep a full trace.
If MCP server is missing
If MCP tools fail or no OpenAI docs resources are available:
- •Run the install command yourself:
codex mcp add openaiDeveloperDocs --url https://developers.openai.com/mcp - •If it fails due to permissions/sandboxing, immediately retry the same command with escalated permissions and include a 1-sentence justification for approval. Do not ask the user to run it yet.
- •Only if the escalated attempt fails, ask the user to run the install command.
- •Ask the user to restart Codex.
- •Re-run the doc search/fetch after restart.
Workflow
- •Clarify the product scope (Codex, OpenAI API, or ChatGPT Apps SDK) and the task.
- •Search docs with a precise query.
- •Fetch the best page and the specific section needed (use
anchorwhen possible). - •Answer with concise guidance and cite the doc source.
- •Provide code snippets only when the docs support them.
Quality rules
- •Treat OpenAI docs as the source of truth; avoid speculation.
- •Keep quotes short and within policy limits; prefer paraphrase with citations.
- •If multiple pages differ, call out the difference and cite both.
- •If docs do not cover the user’s need, say so and offer next steps.
Tooling notes
- •Always use MCP doc tools before any web search for OpenAI-related questions.
- •If the MCP server is installed but returns no meaningful results, then use web search as a fallback.
- •When falling back to web search, restrict to official OpenAI domains (developers.openai.com, platform.openai.com) and cite sources.