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Model Context Protocol Docs vs OpenAI Docs MCP server
Verdict from our tests: OpenAI Docs passed more of our tasks (7 of 7) than Model Context Protocol Docs (5 of 6). Both are in our documentation and docs search category.
| Model Context Protocol Docs | OpenAI Docs | |
|---|---|---|
| Overall | Partial | Works |
| Tasks passed | 5 of 6 | 7 of 7 |
| Sign-in | None | None |
| Median task time | 299 ms | 284 ms |
| Slowest task | 649 ms | 482 ms |
| Gotchas | 1 | 1 |
| Date tested | Oct 16, 2026 | Oct 16, 2026 |
Model Context Protocol Docs: task by task
- Works connect (no auth) (641 ms)
- Works list tools (299 ms)
- Works search docs ("Streamable HTTP transport session") (550 ms)
- Works browse docs filesystem (ls /) (177 ms)
- Partial search with nonsense query (649 ms)
- Works error handling (number as query) (178 ms)
Model Context Protocol Docs gotchas
- A nonsense query returned about 182 KB of unrelated docs instead of an empty result. That is enough to flood a context window.
Set up Model Context Protocol Docs: Claude | Claude Code | Cursor | VS Code | ChatGPT
OpenAI Docs: task by task
- Works connect (no auth) (482 ms)
- Works list tools (186 ms)
- Works search docs ("Responses API streaming") (320 ms)
- Works fetch a doc (Responses API streaming guide) (290 ms)
- Works list API endpoints (67 ms)
- Works search with nonsense query (284 ms)
- Works error handling (missing url) (47 ms)
OpenAI Docs gotchas
- list_api_endpoints returns about 25 KB of paths in one call.
Set up OpenAI Docs: Claude | Claude Code | Cursor | VS Code | ChatGPT
Best MCP servers for documentation and docs search | All tested connectors