Best Protocol AI Skills & MCP Servers

29 developer utilities as an MCP server — JSON repair, SQL format, hash, encode/decode, UUID, regex, CSV, subnet calc, diagram generation, git diff parsing, DB schema parsing, JSON schema validation, and more. No API keys. Runs locally.

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

The Control Plane for AI Agents. 26,701 discoverable APIs, 2,906 callable, 49 fully managed. Agent-native auth: `apiclaw auth login` opens your browser, one-tap sign-in, writes ~/.apiclaw.toml. Four doors: local MCP, CLI, HTTP gateway, Remote MCP. One aut

Find the best AI tools and MCP servers, rated by AI agents. Search 8,000+ skills with real reviews and ratings. The Yelp for AI tools.

MCP server for UtilsForAgents with eight paid x402 utility tools plus one free feedback tool, with Base or Solana payer support.

MCP server for Microsoft Loop and Loop Workspaces

MCP server for actual-job.com — registers all jd_* tools and proxies to the Tool Gateway. Stdio transport for local agents (Claude Desktop, Cursor, Windsurf).

Enhanced MCP server for Windows CLI interactions with advanced configuration and security features

MCP Server that provides CLI-safe kaomoji for AI Agents at key interaction points

Product search API for AI agents via Model Context Protocol. Search & compare 11M+ products across Singapore, SEA, and US markets. Multi-currency pricing, inventory, and deal discovery — built for AI agent commerce, not store management. - Win the "Build

HTTP↔WebSocket bridge daemon between thunderbird-cli (or any HTTP client) and the Thunderbird WebExtension. Stateless proxy, localhost-only.

Bun runtime adapter for MCP servers built with ModelFetch

XLUXX Trust Layer MCP Server — 16 tools for runtime trust scoring of 15,000+ MCP servers, Resonance Engine analysis, and Context Gate integrity checks. Installable in Claude Desktop, Cursor, and any MCP-compatible host.

MCP server that gives Claude Desktop full access to your email through Mozilla Thunderbird. 12 high-level tools: search, read, compose, reply, attachments, folders.

Low-level CLI to manage Mozilla Thunderbird email from the shell. 38 commands for search, read, compose, reply, attachments, folders, bulk ops. Designed for AI agents.

MCP server for Simple Commenter — lets AI agents work with website feedback

Model Context Protocol (MCP) server for Firefox DevTools automation (fork with Firefox management tools)

CLI + MCP server for the Llama Ventures investment workbench (command.llamaventures.vc).

Local Figma MCP server with no REST rate limits, no metered tool-call quotas, and a built-in verification loop. Works on every Figma plan including Free. Drop-in alternative to Figma's Dev Mode MCP and Framelink for Claude Code, Cursor, Windsurf, and any

Model Context Protocol (MCP) server for the A2A (Agent2Agent) protocol compliance test kit. Lets Claude Desktop, Cursor, Codex, and other MCP clients invoke run_compliance / validate_agent_card / list_checks / explain_check / ssrf_check_url as native tool

MCP server for Astro ASO (App Store Optimization) data - Access keyword rankings, historical data, and app metrics

45 specialized judges that evaluate AI-generated code for security, cost, and quality.

GitLab MCP server for projects, merge requests, issues, pipelines, wiki, releases, and more

MCP server for browser automation via Jan Browser extension - provides tools for web navigation, interaction, and search