Best Express AI Skills & MCP Servers

Express middleware library for MCP (Model Context Protocol) OAuth authentication

A deterministic compiler and linter for system architecture. Validate your architecture before you write code. OSS: structural validation + basic architecture lint (rule-based); FastAPI/Express export; OpenAPI document-shape; golden Docker/Makefile — no L

Evaluate, simplify, and differentiate mathematical expressions via MCP. STDIO or Streamable HTTP.

L402 Lightning paywall + Depth-of-Identity score gate for MCP. Two integration shapes: (a) stdio MCP server exposing l402_gate_challenge / l402_gate_verify / l402_gate_score for agent clients; (b) drop-in Express middleware + MCP tool factory that combine

MCP server to automate DSers product import from AliExpress/Alibaba/Accio to Shopify & Wix

An MCP server for parsing and calculating mathematical expressions using mathjs

Express middleware for handling Model Context Protocol (MCP) requests

API route detection — scan projects for Express, Fastify, Next.js, SvelteKit route definitions.

'Every weekday at 9am Asia/Kathmandu' → valid cron expression.

Access real-time public transit information including bus arrivals, train service alerts, and station crowding levels in Singapore. Check live parking availability and monitor expressway travel times or traffic incidents for smoother commutes. Plan journeys more effectively using

A calculator MCP server that lets any LLM verify mathematical computations. Evaluate, simplify, and differentiate expressions via a single tool. Powered by math.js v15.