MCP Server Directory

MusicBrainz MCP by UnClick

Open music metadata: artists, releases, and recordings from MusicBrainz. No API key. By UnClick.

Document Integrity Validator

AI reasoning checks any document against known international standards before your agent acts on it.

Court Records

Federal court records and PACER case data. 4 MCP tools for legal research.

io.github.openaccountants/openaccountants-mcp

Open-source tax skills for AI across 134 countries.

Install + query Scope analytics from an AI coding agent (Claude Code, Cursor, etc.).

Quickgo

QuickGO (EBI) MCP — Gene Ontology browser.

Corporate Apology

corporate-apology MCP — wraps StupidAPIs (requires X-API-Key)

Keypup Engineering Analytics

Generate answers & visualizations from your engineering data to track software development health.

io.github.AlexDeMichieli/weather

An MCP server for weather information.

com.retirecrunch/calculators

FIRE & retirement calculators + a multi-currency portfolio rebalancer (exact buy/sell trades).

Nyc Parks

NYC Parks Events MCP.

io.github.runapi-builder/suno-mcp

RunAPI MCP server for Suno: create tasks, poll status, check pricing.

Local Model Suitability MCP

Check if a task runs locally vs cloud. Save money on calls that don't need cloud inference.

Nitrosend

AI-native email marketing. Campaigns, automations, transactional, contacts, and analytics.

captcha.cc Human Verification

Human verification CAPTCHA with visual and selective-listening audio challenges.

io.github.jkakar/cookwith-mcp

AI-powered recipe generation and transformation tools by Cookwith

io.github.Rumblingb/agent-audit-mcp

Immutable audit trail for agent-to-agent interactions

io.github.mgthompo1/anchorr-mcp

Agent-native CRM. 25 tools — contacts, deals, sequences, enrichment waterfall, audit log.

io.github.nousulabs-debug/pohjola-api

Agent-native API for Finnish public company data via YTJ. Pay-per-call $0.01 USDC over x402.

Arcgis Glasgow

Glasgow City Council GIS — Glasgow, Scotland (UK) open geospatial data (ArcGIS).

Sports Game Odds

Sports Game Odds MCP — wraps the Sports Game Odds API (sportsgameodds.com)

USGS Earthquakes MCP by UnClick

Recent earthquakes worldwide and by region, with detail, from USGS. No API key. By UnClick.

io.github.malkreide/eth-library-mcp

ETH Library Discovery and Persons APIs

io.github.webmoleai/mcp-license-audit

Audit dependency licenses for compatibility issues. Flags GPL/AGPL conflicts.