@modelcontextprotocol/sdk 1.25.3

Model Context Protocol implementation for TypeScript

@modelcontextprotocol/sdk@1.25.3 was published on 2026-01-20. Its manifest declares 16 runtime dependencies and 2 peer requirements. Bundled type declarations are not declared in the inspected metadata. The declared Node.js requirement is >=18.

All @modelcontextprotocol/sdk versions · Permanent reference to 1.25.3 · Latest release

Package specifications

Version1.25.3
License declarationMIT
Published2026-01-20T11:43:46.585Z
Node.js requirement>=18
Type declarationsNot declared
Runtime dependency count16
Peer requirement count2
Optional dependency count0
Minified sizeMeasurement not available yet
Minified + gzipMeasurement not available yet
Unpacked distribution size4053.95 KiB
Published file count669
Package typemodule
ES module entryNot declared
Default entryNot declared
Side effects declarationNot declared
Direct advisories7
Resolved graph dependenciesUnknown
Repository stars13679
Repository forks2354

Install @modelcontextprotocol/sdk 1.25.3

npm install @modelcontextprotocol/sdk@1.25.3
pnpm add @modelcontextprotocol/sdk@1.25.3
yarn add @modelcontextprotocol/sdk@1.25.3

Runtime dependencies

Peer requirements

Optional dependencies

  • None declared

How to interpret the specifications

Bundlephobia measurements use its standard package build and may exclude peer dependencies. Unpacked npm distribution size includes shipped files and is a different measurement. Module declarations do not prove tree-shaking or runtime compatibility.

Advisories apply to this package version directly; transitive dependencies need separate inspection. Repository signals describe the whole repository and are current observations, including on historical-version pages.

Known direct advisories

Evidence and freshness