Best npm MCP Servers
npm is the world's largest software registry, used by JavaScript developers to share and borrow packages for their projects.
Why this server?
Allows grading MCP servers published on npm by referencing their npm package identifier.
AlicenseAqualityAmaintenanceOpen behavioral litmus for MCP servers — grades A–F across tool-output injection, egress, sensitive-data, and adversarial-input, with reproducible, content-addressed evidence. Tools: run_litmus, verify_attestation.Last updated124477Apache 2.0Why this server?
Distributes the MCP server through npm packages for easy installation and updates
AlicenseAqualityBmaintenanceDexPaprika MCP server allows LLMs to access real-time and historical data on tokens, DEX trading activity, and liquidity across multiple blockchains. It enables natural language queries for exploring market trends, token performance, and DeFi analytics through a standardized interface.Last updated1657442MITWhy this server?
Allows the MCP server to be installed and run through the npm package registry, making it easily accessible for AI assistants.
AlicenseAqualityAmaintenanceA privacy-friendly MCP server that enables web searches and URL content extraction using DuckDuckGo, allowing AI assistants to access real-time web information without API keys.Last updated211,23839Apache 2.0Why this server?
Hosts the Axint compiler package (@axintai/compiler) for installation and distribution of the Apple platform code generation tools.
AlicenseAqualityAmaintenanceOpen-source TypeScript/Python → Swift compiler for Apple platforms. AI agents write 5–15× less code to generate App Intents, SwiftUI views, WidgetKit widgets, and full apps. MCP server with 6 tools for scaffolding, compiling, validating, and browsing templates.Last updated13619014Apache 2.0Why this server?
Uses npm ecosystem for package distribution and installation via npx
Why this server?
Provides documentation, type information, version comparison, migration guides, and error diagnosis for any npm package.

Augments MCP Serverofficial
AlicenseAqualityDmaintenanceA next-generation framework documentation provider for Claude Code via Model Context Protocol (MCP). Returns types + prose + examples with context-aware formatting for any npm package — not just curated ones.Last updated842126MITWhy this server?
Allows installation and execution of the MCP server through npm, supporting both global and local installation patterns.

Vendure MCP Serverofficial
AlicenseBqualityFmaintenanceA standalone server that enables programmatic interaction with Vendure CLI commands, allowing external MCP clients to automate and integrate with Vendure e-commerce projects through command execution and project analysis.Last updated712112MITWhy this server?
Allows checking if a specific npm package is used across repositories and developer machines, useful for supply-chain incident response.

stepsecurity-mcpofficial
AlicenseAqualityDmaintenanceMCP server for the StepSecurity platform that enables investigating supply-chain and CI/CD security issues through natural language.Last updated3063Apache 2.0Why this server?
Integrated with npm for installation, allowing the Folderr MCP server to be easily added via npx.

Folderrofficial
AlicenseBqualityDmaintenanceA Model Context Protocol (MCP) server that provides tools to interact with Folderr's API, specifically for managing and communicating with Folderr Assistants.Last updated783MIT