Best Lit AI Skills & MCP Servers

AI-powered idea & task manager for developers. Brainstorm → structured tasks → AI agent execution. CodeMirror editor with slash commands, MCP Server, Claude/Gemini/Codex support. Local-first SQLite, cross-PC Git sync.

REPL-sharing MCP server — AI and humans co-drive the same visible terminal. 19 embedded adapters: shells (bash, pwsh, zsh, cmd), language REPLs (Python, Node, Deno, Lua, Racket, CCL/ABCL/SBCL Common Lisp, F# Interactive, jshell, Groovy, SQLite3), and debu

Enterprise-grade MCP server providing advanced debugging capabilities for Node.js and JavaScript applications via Chrome DevTools Protocol. Features 25+ debugging tools including breakpoints, variable inspection, execution control, CPU/memory profiling, h

Cal.com scheduling MCP server - manage bookings, event types, and availability

MCP server for PubMed literature search and US/UK drug labelling — built by PharmaTools.AI

Persistent project memory for LLMs via MCP. Never re-explain your project again.

MCP server for database connectivity. Multi-DB (PostgreSQL, MySQL, SQLite), connection management, schema introspection, query execution with token-optimized responses, rollback, history, elicitation for destructive ops, and prepared statements. Zero conf

VibeSecurity — Auditoria de segurança para quem cria com IA. Secrets, vulnerabilidades e rotas sem auth.

AccessFlow MCP Server for accessibility issue remediation

Token-efficient browser MCP server — structured web pages for AI agents, not raw accessibility dumps

dwic — the design auditor for Claude Code. MCP server that audits your design tokens + markup for WCAG contrast failures, mandated-accent drift, and structural gaps, then remembers findings across sessions.

MCP server for Adobe Commerce / Magento 2 developer documentation. Gives AI assistants (Claude, Cursor, Cline, Windsurf) direct access to developer.adobe.com/commerce — PHP modules, GraphQL, REST API, PWA Studio, App Builder, extensibility, MFTF testing,

22 x402 pay-per-call utility tools for AI agents — scrape, validate, embed, store, moderate, notify, convert, prevent loops. No accounts, no API keys. USDC on Base via the x402 protocol.

PerfAI MCP Server - Security, Design & Quality Analysis with Auth0 Authentication

Argus — AI-powered automated dev-testing platform using Chrome DevTools MCP and Claude Code

Security scanner for AI agent tools. Local static scan of MCP IDE configs (41 rules, toxic flow heuristics, AAuth visibility, auto-fix, tool pinning). Optional proxy + in-browser dashboard: traffic, findings, AAuth Explorer, YARA, Playground. Smart Scan o

MCP server for PubMed literature search and US/UK drug labelling — built by PharmaTools.AI

MCP server for PubMed biomedical literature search

MCP server for JackpotKeywords — AI-powered keyword research and AI-visibility scans via REST API

Shared TypeScript types and x402 payment-flow utilities for @xenarch/agent-mcp — Xenarch's non-custodial x402 MCP server.

Security co-pilot for AI agents. Scan for vulnerabilities, verify governance, audit MCP servers, and generate compliance reports — all from Claude, Cursor, or any MCP client.

GARL Protocol MCP Server — cryptographic verification for AI agent actions. 28 named tools: submit signed Action Receipts (v0.1), query multi-dimensional Trust Vector, issue/verify/revoke capability tokens (JWT-shaped + ECDSA-secp256k1), Capability Gate p

Access FCC broadband availability, coverage analysis, and digital divide data for US geographies and census blocks via MCP. STDIO or Streamable HTTP.

Observability for MCP servers and LLM applications — traces, metrics, dashboards. One-line instrumentation for OpenAI, Anthropic, Gemini, and MCP. Self-hosted with Grafana + Prometheus + Jaeger.