Best Protocol AI Skills & MCP Servers

Model Context Protocol server for Cognigy.AI REST API

PostHog SDK for MCP servers

MCP server for per-agent cost attribution, budget management, and spend analytics across AI agent fleets

MCP server for analyzing and optimizing context window token usage — audit tool definitions, compress schemas, track usage, and reduce bloat

Persistent memory for AI coding agents. Knowledge graph with 4-tier taxonomy, confidence scoring, and MCP protocol support for Claude Code, Cursor, Gemini CLI, Windsurf, Cline, Codex, and OpenCode.

Installable AgentLux MCP server and embeddable toolkit for marketplace, identity, creator, services, and social flows on Base

Local-first code intelligence CLI for unerr

The official ToolPlex client for AI agent tool discovery and execution

Page Context MCP Bridge - relays extension context tools to MCP clients via stdio/SSE transport

MCP server for bilibili

Unofficial MCP server for Ploomes CRM — connects AI agents to the Ploomes REST API

MCP (Model Context Protocol) server for apiz.ai — exposes generate / get_result / search_models / guide / account / speak / parse_video / transfer_url tools

MCP server for Holded — invoicing, accounting, CRM, projects, and team

Notion MCP server for Claude, Cursor, ChatGPT, and Claude Desktop — connect AI agents to Notion via the Model Context Protocol. Create pages, query databases, append blocks, upload files, and more in natural language.

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.

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 Misar.Blog — publish blog posts, manage drafts, generate AI cover images, and access analytics from Claude Code, Cursor & Windsurf.

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).

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

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

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.