py-code.org analysis: MCP SDK imported by 20,013 new PyPI packages, ahead of openai's 12,096

An analysis of 335,167 PyPI projects with a release between 13 November 2025 and 13 November 2026 finds the MCP Python SDK imported by 20,013 of them, more than any single LLM SDK, with openai at 12,096. Overall 22,563 projects, or 6.7%, import at least one of six LLM SDKs, peaking at 8.4% in April 2026, and 17,329 of the MCP users import mcp.server, indicating most are servers exposing tools rather than LLM callers. Across all 354,763 indexed projects, requests leads httpx 45,752 to 41,112, and 23,696 projects use only pydantic v2 validators versus 465 using only v1.