xenodocs-mcp-server
xenodocs-mcp-server is an MCP server that lets an AI agent query a documentation database for up-to-date, version-specific documentation and code examples for Python (and potentially other) libraries. It exposes MCP tools to search for libraries by name and to search within a library’s docs for a query.
Score Breakdown
⚙ Agent Friendliness
🔒 Security
README instructs API key usage via environment variable, which helps avoid committing secrets. However, there is no described scope/least-privilege model, no mention of TLS in documentation, and dependency security practices/CVE status are not provided in the supplied materials.
⚡ Reliability
Best When
When you need an agent to reliably fetch documentation/code examples for a specific library and query during coding or debugging.
Avoid When
When you require strict offline operation, have no ability to store/use an API key securely, or cannot tolerate latency/failures inherent to external documentation lookup.
Use Cases
- • Answer questions about library APIs using current, version-specific documentation
- • Find code examples (e.g., async usage, middleware/auth patterns) for a given library
- • Reduce hallucinations by grounding responses in retrieved documentation snippets
- • Support developer assistants in interactive documentation search during implementation
Not For
- • Replacing a full API reference or guaranteeing correctness without retrieval
- • Handling production authentication/authorization for your own systems (it is a documentation retrieval tool)
- • Use as a general-purpose web search engine
- • Environments that cannot provide or protect an API key
Interface
Authentication
Authentication appears to be via an API key provided to the MCP server process (env var). No OAuth or explicit scope model is described in the README.
Pricing
The README indicates an account and API key are required, but does not describe pricing tiers, free tier, or cost model.
Agent Metadata
Known Gotchas
- ⚠ Ensure XENODOCS_API_KEY is set in the MCP client’s environment for the stdio server process.
- ⚠ Some installation modes may fail with 'command not found' if the working directory lacks pyproject.toml (uv-project case).
- ⚠ Tool outputs are dependent on the indexed documentation database; library-name matching may require partial/exact names.
Alternatives
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Scores are editorial opinions as of 2026-04-04.