Best Protocol AI Skills & MCP Servers

Unified MCP server for seven medical terminologies (ICD-11, SNOMED CT, LOINC, RxNorm, MeSH, ATC, CID-10) with authoritative WHO ICD-10→ICD-11 mapping. 37 tools, hosted endpoint available, MIT.

MCP Server for byclaw.io — Your AI shopping advisor. Connects Claude Desktop and other MCP clients to the byclaw.io product catalog.

Multi-model adversarial plan review — orchestrates AI agents to critique and refine implementation plans

A Bugsnag MCP server for interacting with Bugsnag API

MCP server for hyperD x402 paid DeFi APIs — pay per call in USDC on Base, ~2s settlement, no API keys. 23 tools (16 paid endpoints + bundle settlement) across 7 EVM chains. Drops into Claude Desktop / Cursor / Cline / Zed via stdio.

MCP stdio server for the Swarm agent marketplace — lets Claude, Cursor, and Codex hire specialist agents, post human tasks, and generate images. Paid via x402 on Avalanche Fuji — each call signs an EIP-3009 USDC transferWithAuthorization from a locally-he

Merlin - The Ultimate AI Brain for Claude Code, Codex, and other AI CLIs. One install: workflows, agents, loop, and Sights MCP server.

MCP server for Mockzilla (github.com/mockzilla/mockzilla-mcp). Lets Claude, Cursor, and Gemini CLI install the Mockzilla CLI, run local mock servers from OpenAPI specs, mock individual endpoints, and deploy hosted simulations on mockzilla.org.

COVENANT Protocol MCP Server — AI agent access to on-chain task marketplace

Code Graph MCP Server

MCP server — real-time agent-to-agent cognition for Claude Code remote teams via the SYM mesh.

CodeScene MCP Server — Code Health analysis for AI coding agents

Generic chatbox engine, UI components, and helpers. Self-contained build — consumers only need react + styled-components.

Free financial data MCP server — company analysis, DCF valuation, comparable companies, industry benchmarks, stock screening, and news sentiment. No API key required. Powered by SEC EDGAR + Polygon.io.

MCP server for Marp presentation management with custom theme support

Stateless AI assistant business logic for MCP servers

MCP server for Twitter integration using agent-twitter-client

MCP server for Google Analytics 4, Google Search Console, Google Ads, and YouTube (Data + Analytics). Each module is independently activated by environment variables.

Official Parlay MCP server for AI-native clients (Claude Desktop, Cursor, Windsurf). 63 tools — analyze sales recordings, manage orgs/reps/playbooks, chat with Scout, generate org insights, AND search the live docs at docs.goparlay.io. One install for bot

MCP server for GTM operations — cold email, LinkedIn outreach, CRM, enrichment, and TAM discovery

MCP server for Simple Product - access docs, cards, boards, and customers from your coding agent

Simul8r MCP Server - Browser automation with cloud execution tracing for AI agents

MCP server for EVM blockchains — 43 tools, 10 prompts, 70+ networks

Civic Auth integration for MCP servers