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DimensionPostman MCP ServerAn MCP server providing access to the Postman APINPM Sentinel MCP ServerAI-powered NPM package analysis MCP server
FMRS49 / 100 · D79 / 100 · B
Reliability7 / 2012 / 20
Security and permissions8 / 2016 / 20
Maintenance9 / 2018 / 20
Documentation13 / 2018 / 20
Setup experience12 / 2015 / 20
Best for
  • Teams running complex, multi-step Postman operations through AI assistants
  • Developers automating test workflows and API documentation upkeep
  • Postman users managing many collections and environments
  • Developers auditing NPM dependencies within AI workflows
  • Teams performing supply chain security assessments
  • Users of Claude Desktop, Cursor, or VS Code
Not for
  • Users who only need simple collection runs or single API calls
  • Developer-driven local iteration better served by CLI or direct API use
  • Anyone expecting an officially maintained Postman server (this is a community project)
  • Projects outside the NPM ecosystem (e.g., pure Python/Go)
  • Environments without network access to deps.dev, OSV.dev, and the npm registry
  • Scenarios requiring maintenance by an official upstream vendor
Required permissions
  • Requires a Postman API key with access to the relevant resources (POSTMAN_API_KEY)
  • The API key grants access to all Postman resources the account has permissions for
  • Supports role-based permissions at workspace and collection levels
  • Network access to the NPM registry and external services (deps.dev, OSV.dev, OpenSSF, npms.io, GitHub)
  • Read access to workspace lockfiles (pnpm-lock.yaml, package-lock., yarn.lock) for cache invalidation
Risks and side effects
  • Project is under active development with potential breaking changes
  • Code is AI-generated (Cline with Claude 3.5 Sonnet) and should be reviewed carefully
  • The API key has broad access; leaking it could expose Postman resources to modification or deletion
  • The server communicates over stdio, which makes debugging harder
  • Third-party READMEs and changelogs are untrusted external content; they are wrapped in tags with _meta flags but should still be handled cautiously
  • Depends on availability and accuracy of external services
  • Batch requests are capped at 25 packages to prevent registry enumeration; larger sets require batching
  • Third-party open source project, not officially maintained by NPM or Anthropic
Supported clientsClaude Desktop, Cline, ZedClaude Desktop, VS Code, Cursor
Tools019