What it means for leaders

MCP has become the common way to connect AI agents to tools and data. Expect vendors to offer MCP servers, and set an approval and security process for which ones your agents may use.

What would change the reading: Growth slowing as the protocol matures, or a competing standard gaining ground.

The trend

May 31, 2026September 30, 2026

The breakdown

September 30, 2026.
  • npm231,910,527
  • PyPI230,129,094

Every reading

DateValueChangeSource
462,039,621−15.6%Source
547,173,106+5.5%Source
518,575,724+16.3%Source
446,029,417+1.8%Source
438,284,930—Source

Definition and method

What it measures
Downloads in the month of @modelcontextprotocol/sdk on npm and of mcp on PyPI (without mirrors); parts give each registry.
Population
Downloads from npm and PyPI
Updated
Monthly
Source
npm registry and PyPI download statistics · Public download statistics, attributed

Caveats

  • Downloads include automated installs and dependencies of other packages, so they are not developers.
  • PyPI history covers about six months.

Cite this

Enterprise AI in Numbers, "Monthly downloads of the Model Context Protocol SDKs", https://lucianoayres.com/ai-brief/data/mcp-sdk-downloads/, retrieved October 25, 2026. Data: npm registry and PyPI download statistics.

Download every indicator (CSV) · Methodology