Best Protocol AI Skills & MCP Servers

MCP server for rftools.io — 213 RF & electronics calculators for AI agents via the MCP

MCP server for Claude Code that provides email capabilities through IMAP/SMTP. Read, search, compose, and manage emails from any IMAP provider.

MCP server for ArcBridge — exposes architecture tools to AI coding agents

Official MCP server for IP geolocation, IP security, abuse contacts, ASN, timezone, astronomy, and user-agent parsing.

Test your MCP servers for breaking changes. Checks capabilities, invokes tools, detects schema drift between versions.

MCP server for AI agent component discovery

MySQL MCP Server - stdio protocol for MySQL database operations with Windows support

MCP server for HumanSurvey — let AI agents collect structured feedback from groups of people

MCP server with 45 developer utilities (16 free + 29 pro). Free: UUID, hash, HMAC, base64, timestamps, JWT decode, random strings, URL encode/decode, JSON format, YAML/JSON convert, regex test, cron explain, color convert, HTTP status, slugify, HTML escap

MCP server for Runframe incident management — any agent, any IDE, one system of record

Access US federal award, recipient, agency, and spending analytics data from USAspending.gov via MCP. STDIO or Streamable HTTP.

MCP server for the WhoisXML API packaged for npm.

Cloudflare runtime adapter for MCP servers built with ModelFetch

MCP server that gives Claude, Cursor, and Gemini long-term memory across sessions. Your AI remembers your codebase, decisions, and preferences — across tools and machines.

Deploy and manage apps on EigenCompute TEE — trusted execution environments with hardware-level isolation, encrypted secrets, and attestation. Works as MCP server for Cursor/Claude Desktop or as Claude Code skill.

MCP server for PostEverywhere — schedule and publish to Instagram, TikTok, YouTube, LinkedIn, Facebook, X, Threads & Pinterest from Claude Code, Claude Desktop, Cursor, and other MCP-compatible AI clients.

Zero-config MCP server for developers — encode/decode, hash, UUID, JWT, DNS, IP info, URL tracing, npm lookup and more.

CuratedMCP's local-first action firewall for MCP servers

Bridge any MCP server to the agent:// network — make your tools discoverable, callable, and composable by other AI agents.

MCP server & CLI: codebase index + cache for Claude Code, Cursor, OpenAI Codex, Google Antigravity/Gemini. Model Context Protocol tools (codetree_read, codetree_search, …), hooks on Claude, rules on other IDEs. Token savings, SQLite index, symbol search,

A Model Context Protocol (MCP) server providing PureScript development tools for AI assistants

MCP server for PLANKA kanban boards

Core utilities for MCP servers built with ModelFetch

MCP server exposing the NEAR stack (accounts, Chain Signatures, NEAR Intents) as agent tools.