MCP Servers 3,308
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Walnut
Connect your portfolio to Claude, ChatGPT, or Codex to analyze it and make smarter investments.
MailMCP
Connect any mailbox to Claude, ChatGPT & AI: read, send, reply, schedule & search emails.
Maindex Smart Memory Service
Simple memory for AI: keep, recall, update, and forget information across sessions.

Agent Tools
9 utility tools for agents: DNS, WHOIS, email, IP, URL, headers, QR, text, tech.
LMX Cloud LLM Inference
OpenAI-compatible LLM MCP (7 tools); chat via balance key or x402 USDC on Base
Umtri
Give your AI agent a persistent map of your project's structure, dependencies, and bugs.
StreetProof Physical Brand Index
Read-only, privacy-safe evidence of physical business presence for AI agents.

Enterprise Internal Knowledge Base: Production-Ready RAG + MCP
Production-ready RAG + MCP demo: eval-in-CI merge gate, Langfuse traces, structure-aware chunking.
Norse
Grounds LLMs in real Old Norse: lemmas, mediopassive paradigms, English→Old Norse lookup.
GotFreeFax
Send free or paid faxes to US/Canada from Claude, ChatGPT, and other AI agents.
Joules — AI Cycling Coach
Turn Claude or ChatGPT into a cycling coach that plans your week, grades it, and adapts.
mcp
Create content and test it on a real audience — neuroflash Digital Twins inside Claude & Cursor.
mcp
Archive any URL to a shareable rrweb/pdf/png snapshot + agent-driven web QA (scan, run E2E flows).
SpatialPack — 3D asset readiness
Test whether 3D assets survive Apple Quick Look and Safari <model>, then fix what fails
Warm Night Fishing (暖夜垂钓)
Free blind-play night-fishing game over MCP.
Carvox — Carros Usados em Portugal
Used car catalogue in Portugal.
Torify — Japan Locale APIs for AI Agents
39 Japanese locale APIs — wareki, NTA invoice, 法人番号, postal, romanization, kanji-kana (Workers AI).
Tarot MCP Server by RoxyAPI
Tarot card meanings, spreads and seeded reproducible readings for AI agents, one API key.
Slavonic
Grounds LLMs in real Church Slavonic: Wiktionary lemmas, dual-number paradigms, transliteration.
Podcasts
An MCP server that provides tools to discover and retrieve podcast episodes transcripts.
Agentra
Identity oracle and trust layer for autonomous AI agents.
AIノアカリ☆ Agent Trust Receipt
Read-only Remote MCP for externally grounded AI agent trust receipts.