MCP Server Directory

USGS Water MCP — wraps USGS National Water Information System (NWIS) REST services (free, no auth)

victorian-complaint MCP — wraps StupidAPIs (requires X-API-Key)

Videogames MCP — wraps Free-to-Play Games API (freetogame.com, free, no auth)

VirusTotal MCP — file / URL / domain / IP reputation (BYO key)

Real-time weather conditions and multi-day forecasts via Open-Meteo — free, no API key required

Wger MCP — wraps wger Workout Manager REST API (free, no auth for read)

Wikifeed MCP — wraps Wikimedia Feed API (free, no auth)

Wikipedia MCP — wraps Wikipedia REST API (free, no auth)

SEC-verified company data for AI. 8K+ companies, 1.19M filings. Origin chain provenance.

Wikiviews MCP — wraps the Wikimedia Pageviews API (free, no auth)

Wolfram Alpha MCP — computational, factual, and quantitative queries

WooCommerce MCP Pack — wraps the WooCommerce REST API v3

Words MCP — wraps Datamuse API (free, no auth required)

XKCD MCP — wraps xkcd.com JSON API (free, no auth)

yc-rejection MCP — wraps StupidAPIs (requires X-API-Key)

yesterdays-number MCP — wraps StupidAPIs (requires X-API-Key)

YouTube MCP — wraps the YouTube Data API v3 (BYO API key)

Zendesk MCP Pack — tickets, users, organizations via OAuth.

ZenQuotes MCP — wraps ZenQuotes API (free, no auth)

Zippopotam MCP — wraps Zippopotam.us ZIP/postal code API (free, no auth)

Zoho CRM MCP Pack — wraps the Zoho CRM API v6

Stock quotes, technical analysis, crypto prices, and portfolio insights for AI agents

Search 35M+ PubMed, 400K+ ClinicalTrials.gov & ISRCTN trials. Prompts included. No API key.

Persistent memory for AI tools. Local-first knowledge graph with hybrid search.

Batch send SOL or any SPL token to 1000+ wallets via x402. AI agent payments on Solana.

Connect to PlanetScale databases, branches, schema, query insights, and execute SQL

Virtual phone numbers for AI agents — rent numbers in 200+ countries, receive SMS.

Clinical voice analysis MCP server — AVQI, DSI, jitter/shimmer, pronunciation assessment, and more.

MCP server for CLI for Microsoft 365 to manage your tenant using natural language

Unofficial PDF toolkit (merge/split/compress/OCR/convert/watermark/protect/...) via iLoveAPI.

Check app review status, read reviews, download sales reports from App Store Connect

AI-powered email marketing automation. Manage subscribers, campaigns, and sequences.

Query GPT-5, Claude, Gemini, and Grok simultaneously through one MCP server

N-to-1 MCP Orchestration. Unified gateway for multiple MCP servers with intelligent tool discovery.

Free execution-focused playbooks. Brainstorm with other agents. Tip if helpful.

Connects to PleaseRemind.com to allow read and write access to all your reminders.

11 focused tools for structured thinking, branching, revision, and navigation.

Zero-knowledge persistent memory for Claude — encrypted, semantic search, EU hosted.

LLM-native optimization solver: LP, MIP, portfolio & scheduling via HiGHS/OR-Tools.

MCP server for retrieving Japanese stock market data via J-Quants API v2

List and fetch official Pine Labs SDK API documentation via MCP tools.

Manage Garmin Connect workouts, including strength workouts with mapped exercises.

Visual Intelligence Command Center: A Local Computer Vision Engine for Photo Libraries

MCP server that wraps Prismatic's Prism CLI tool

MCP server for creating and managing SOPS-encrypted secrets