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OpenAI MCP server · C · ToolBench

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OpenAI

developers.openai.com/mcp

Read-only access to OpenAI developer documentation (search + page content)

Being assessedSTREAMABLE_HTTP5 tools

67/100

Definition Quality78

Protocol Readiness100

Security25

Supportability45

Spec posture

Being assessed against 2026-07-28·last reported 2025-11-25

Live V2 assessment pending · evidence: Streamable HTTP

Being assessed

Summary

Well-curated, focused tool set (5 tools) with clear documentation purposes. Tools follow a logical workflow pattern: search → fetch → spec exploration. Descriptions are substantive and explain WHEN to use each tool. Schema design is typed and intentional. Primary weakness is incomplete description text (truncation) in search_openai_docs and list_openai_docs, and slightly generic descriptions in list_api_endpoints.

Tools (5)

fetch_openai_docsource verified87/100

Fetch the markdown for a specific doc page (from `developers.openai.com` or `platform.openai.com`) so you can quote/summarize exact, up-to-date guidance (schemas, examples, limits, edge cases). Prefer to **`search_openai_docs` first** (or `list_openai_docs` if you’re browsing) to find the best URL, then `fetch_openai_doc` to pull the exact text; you can pass `anchor` (e.g. `#streaming`) to fetch just that section.

get_openapi_specsource verified85/100

Return the OpenAPI spec for a specific API endpoint URL. Optionally filter code samples by language, or return only code samples.

list_api_endpointssource verified74/100

List all OpenAI API endpoint URLs available in the OpenAPI spec.

list_openai_docssource verified81/100

List/browse pages from `platform.openai.com` + `developers.openai.com` that this server crawls (useful when you don’t know the right query yet or you’re paging through results). Search across `platform.openai.com` + `developers.openai.com` docs. Use this whenever you are working with the OpenAI API (including the Responses API), OpenAI API SDKs, ChatGPT Apps SDK, or ChatGPT Codex. Results include URLs—**after `list`, use `fetch_openai_doc`** on a result URL to get the full markdown.

search_openai_docssource verified84/100

Search across `platform.openai.com` + `developers.openai.com` docs. Use this whenever you are working with the OpenAI API (including the Responses API), OpenAI API SDKs, ChatGPT Apps SDK, or ChatGPT Codex. Results include URLs—**after `search`, use `fetch_openai_doc`** to read/quote the exact markdown.

Issues (3)

MEDIUM

Description text truncation in search_openai_docs and fetch_openai_doc

search_openai_docsfetch_openai_doc

MEDIUM

list_api_endpoints description is generic and doesn't explain workflow context or when to use it

list_api_endpoints

LOW

Duplicate/overlapping description text between search_openai_docs and list_openai_docs creates confusion about intended use cases

search_openai_docslist_openai_docs

Recommendations

Complete the truncated descriptions for search_openai_docs and fetch_openai_doc, finish the markdown phrase and clarify edge cases
Rewrite list_api_endpoints description to explain: this lists available endpoints from OpenAPI spec, use before get_openapi_spec to discover what's available
Add guidance to list_openai_docs: 'Use when you don't know the query term (discovery mode), or to page through search results'
Consider adding a 6th tool: validate_openai_request or similar, to close the loop, after fetching docs/spec, agents could validate payload structure
Add examples in descriptions (e.g., 'search for "embeddings" to find embedding endpoints') to improve discoverability

Score history

Overall score trend

First recorded score · v1 rubric

67/100

Scored	Grade	Overall	Spec posture	Rubric
2026-04-14	C	67	2025-11-25	v1