MCP Server Directory

Check whether ChatGPT, Perplexity and Gemini recommend a business. By Cited (cited.voreli.ai)

Genealogical research in the US National Archives Catalog: records, transcriptions, page images.

Catches leaked credentials and PII in outbound LLM prompts

Feedlio MCP server exposing posting and scheduling tools to Claude Desktop and Claude Code.

Zarla Website Builder com.zarla/website-builder

Build, edit and publish websites from Claude, ChatGPT, Cursor and Gemini. No code — Zarla hosts it.

Manage Nextcloud tasks, calendar events and notes from Claude over CalDAV and the Notes API.

chartcraft io.github.omarrim/chartcraft

Forge designed Power BI projects (.pbip) from your agent, bound to your own semantic model.

SatoshiMacro Market Data com.satoshimacro/market-data

Live crypto cycle data: 48-signal Bitcoin cycle model, Bitcoin ETF flows, ASX ETFs, altseason

DefaultRank com.defaultrank/mcp

Check npm dependencies for outdated majors, and see which dev tools AI models pick.

Pay-per-call x402 gateway: agent tools, OpenAI-compatible LLM, market data, RPC, security audits.

Accessible maidr charts in ChatGPT and Claude, explored by sound, braille and screen reader

insumer com.insumermodel/insumer

Wallet auth: send a wallet and conditions, get a signed boolean across 37 chains.

Drive Google Flow from an agent: Veo video and Imagen image generation

yukkurigen-mcp io.github.yukkurigen/yukkurigen-mcp

台本を渡すとゆっくり解説・ずんだもん解説の動画（MP4）が返る。音声合成・字幕・図解・BGM・効果音まで自動。ChatGPT / Claude からは OAuth でつなぐだけ。

Pastefield com.pastefield/mcp

Give Claude a whiteboard: notes, links, images and diagrams on a board you both see and edit.

Local Claude Code and Codex sessions on one machine exchange letters through native inputs.

Engram: AI memory you can edit in Obsidian io.github.engram-app/engram

Shared memory for Claude, ChatGPT and any MCP client. Read and edit it in Obsidian or the web app.

YouTube Transcripts & Subtitles io.github.saulius876-lgtm/youtube-transcripts

Bulk YouTube transcripts from videos, channels, playlists or search: text, RAG chunks, SRT, VTT.

Access ocean data from 80+ ERDDAP servers worldwide

Exact document sections on demand for LLM agents: index in context, search, read, grep, neighbours.

AI API Cost Firewall & Rate Limiter io.github.Ansarii/mcp-rate-limiter

Token guard and rate limiter preventing runaway API cost spikes for OpenAI and Anthropic.

Scan prompts, tool definitions and model output for injection, and guard agent tool calls.

Train, track and query models on a running dashAI instance. Read-oriented, no delete tools.

Baron Power Play io.github.MintMachineHQ/baron-power-play

Pay-per-call AI infra for agents: DeFi market data, LLM inference, STT/TTS. x402 v2, USDC on Base.