@modelcontextprotocol/sdk 1.31.0
Model Context Protocol implementation for TypeScript
@modelcontextprotocol/sdk@1.31.0 was published on 2026-09-28. Its manifest declares 17 runtime dependencies and 2 peer requirements. Type declarations are bundled according to the package metadata. The declared Node.js requirement is >=18.
All @modelcontextprotocol/sdk versions · Permanent reference to 1.31.0 · Latest release
Package specifications
| Version | 1.31.0 |
|---|---|
| License declaration | MIT |
| Published | 2026-09-28T18:59:36.307Z |
| Node.js requirement | >=18 |
| Type declarations | Bundled declarations |
| Runtime dependency count | 17 |
| Peer requirement count | 2 |
| Optional dependency count | 0 |
| Minified size | Measurement not available yet |
| Minified + gzip | Measurement not available yet |
| Unpacked distribution size | 4270.71 KiB |
| Published file count | 701 |
| Package type | module |
| ES module entry | Not declared |
| Default entry | Not declared |
| Side effects declaration | Not declared |
| Direct advisories | Unknown |
| Resolved graph dependencies | Unknown |
| Repository stars | Unknown |
| Repository forks | Unknown |
Install @modelcontextprotocol/sdk 1.31.0
npm install @modelcontextprotocol/sdk@1.31.0 pnpm add @modelcontextprotocol/sdk@1.31.0 yarn add @modelcontextprotocol/sdk@1.31.0
Runtime dependencies
- ajv ^8.17.1
- zod ^3.25 || ^4.0
- cors ^2.8.5
- hono ^4.11.4
- jose ^6.1.3
- express ^5.2.1
- raw-body ^3.0.0
- ajv-formats ^3.0.1
- cross-spawn ^7.0.5
- eventsource ^3.0.2
- content-type ^1.0.5
- pkce-challenge ^5.0.0
- @hono/node-server ^1.19.9 || ^2.0.5
- json-schema-typed ^8.0.2
- eventsource-parser ^3.0.0
- express-rate-limit ^8.2.1
- zod-to-json-schema ^3.25.1
Peer requirements
- zod ^3.25 || ^4.0
- @cfworker/json-schema ^4.1.1 (optional peer)
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.
Evidence and freshness
- https://registry.npmjs.org/%40modelcontextprotocol%2Fsdk/1.31.0 — retrieved 2026-11-01T06:09:39.278Z