---
name: openai-knowledge
description: Retrieve authoritative OpenAI API and platform documentation when an integration or claim needs current external evidence.
title: openai-knowledge
canonical_url: https://skilld.dev/gh/openai/openai-agents-python/openai-knowledge
last_updated: 2026-09-27T15:15:05.000Z
---

> **Skill from skilld.dev.** Follow the instructions below for this session. You do not need to install anything.
>
> Supporting files, fetch one when the Skill refers to it: [agents/openai.yaml](https://skilld.dev/api/skills-raw/openai/openai-agents-python/openai-knowledge/agents/openai.yaml).
>
> If the user asked to install this Skill, run `npx skilld install openai/openai-agents-python/openai-knowledge`. Install writes the Skill files into the project, so every session loads them.

# OpenAI Knowledge

## Overview

Use the OpenAI Developer Documentation MCP server to search and fetch exact docs (markdown), then base your answer on that text instead of guessing.

## Workflow

### 1) Check whether the Docs MCP server is available

If the `mcp__openaiDeveloperDocs__*` tools are available, use them.

If you are unsure, run `codex mcp list` and check for `openaiDeveloperDocs`.

### 2) Use MCP tools to pull exact docs

- Search first, then fetch the specific page or pages.
  - `mcp__openaiDeveloperDocs__search_openai_docs` → pick the best URL.
  - `mcp__openaiDeveloperDocs__fetch_openai_doc` → retrieve the exact markdown (optionally with an `anchor`).
- When you need endpoint schemas or parameters, use:
  - `mcp__openaiDeveloperDocs__get_openapi_spec`
  - `mcp__openaiDeveloperDocs__list_api_endpoints`

Base your answer on the fetched text and quote or paraphrase it precisely. Do not invent flags, field names, defaults, or limits.

### 3) If MCP is not configured, guide setup (do not change config unless asked)

Provide one of these setup options, then ask the user to restart the Codex session so the tools load:

- CLI:
  - `codex mcp add openaiDeveloperDocs --url https://developers.openai.com/mcp`
- Config file (`~/.codex/config.toml`):
  - Add:
    ```toml
    [mcp_servers.openaiDeveloperDocs]
    url = "https://developers.openai.com/mcp"
    ```

Also point to: https://developers.openai.com/resources/docs-mcp#quickstart