Best Express MCP Servers
Express is a fast, unopinionated, minimalist web framework for Node.js that provides a robust set of features for web and mobile applications.
Why this server?
Generates API route handlers for Express applications that integrate with the Kalendis scheduling API
AlicenseBqualityDmaintenanceEnables interaction with the Kalendis scheduling API to manage users, availability, bookings, and generate TypeScript clients and API routes. Supports comprehensive scheduling operations including recurring availability, exceptions, and booking management through natural language.434 npmMITWhy this server?
Scans Express applications for missing authentication, IDOR, injection, SSRF, and other server-side vulnerabilities.

shipsafe-mcpofficial
AlicenseAqualityCmaintenanceEnables AI coding assistants to scan projects for security issues such as leaked API keys, missing Supabase RLS, open Firebase rules, unauthenticated routes, and hallucinated packages, then fix and verify the results.81MITWhy this server?
Allows for zero-spec extraction to generate OpenAPI specifications directly from Express.js source code.

delimitofficial
AlicenseAqualityAmaintenanceOne workspace for every AI coding assistant. Governance tools for API lint, diff, persistent ledger, multi-model deliberation, security audit, and test verification. Works with Claude Code, Codex, Cursor, and Gemini CLI.2132,342 npm23MITWhy this server?
Probes and analyzes Express backend endpoints to diagnose blank pages, empty data, and contract mismatches, providing root cause and fix hints.

qa-probeofficial
AlicenseAqualityCmaintenanceProbes your live API and classifies why each endpoint failed (root cause, evidence, and a calibrated confidence level), exposed over MCP so your AI assistant debugs from evidence instead of guessing. Works with FastAPI, Express, Next.js, tRPC, and GraphQL.8152 npm2Apache 2.0Why this server?
Provides middleware for Express.js APIs to enforce HTTP 402 paywalls, allowing AI agents to pay per request.

A-Pay Protocolofficial
AlicenseBqualityAmaintenanceUniversal HTTP 402 Micropayment Protocol & Autonomous Economic Settlement Engine for AI Agents on Base L2.538 PyPIMITWhy this server?
Provides enhanced documentation, type signatures, examples, version migration guides, and error diagnosis for Express packages.

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.818 npm127MITWhy this server?
Offers code generation for Express API endpoints that interact with Bitcoin Stamps data, including search functionality and rate limiting.
AlicenseBqualityDmaintenanceA Model Context Protocol server that enables interaction with Bitcoin Stamps data via the Stampchain API, providing tools for querying stamp information, collections, and blockchain data without requiring authentication.13MITWhy this server?
Supports connecting to any Express server that implements the wire contract for document upload/download.
AlicenseAqualityBmaintenanceAn MCP server for reading, creating, and managing PDF, DOCX, and Excel documents with OCR, styling, categorization, and remote file bridges.171MITWhy this server?
Enables deployment of Express.js applications to Varity with automatic backend provisioning.

Varity MCP Serverofficial
AlicenseAqualityBmaintenanceEnables AI coding tools to scaffold, build, and deploy Node.js or Python apps to Varity with a single command, automatically provisioning databases and backend services.1868 npm1MIT