MCP Servers
Model Context Protocol servers that give AI agents access to tools and data — sourced from the official MCP registry and ranked by GitHub stars.
io.github.cbetz/ratebook
Open MCP server for US electricity tariffs: real rate lookup, bill estimates, and when to charge.
Geopolitical conflict risk, political events, and maritime traffic data for AI agents
TrueNAS SCALE
Inspect and manage TrueNAS SCALE storage, shares, apps and system state with your own API key
MCP server for Kalshi prediction markets: native RSA-PSS auth, rate limiting, demo/prod safety.
io.github.cesco345/capital-equipment
Search, book, and manage scientific research equipment across 500+ STEM core facilities.
Margins
Use your Claude Pro/Max subscription on your Obsidian vault. Reads markdown, proposes writes.
loudcheck
Loudness compliance verdicts (EBU R128, ATSC A/85): pass/fail with exact ffmpeg remediation.
Unofficial read-only MCP server for Greek supermarket price data from PosoKanei.
MCP server for Path of Exile game data: wiki, economy, and Craft of Exile lookups
io.github.charo360/statecli
State replay and self-debugging for AI agents. Track, replay, undo, checkpoint.
Honest claim corroboration for AI agents: syndication-aware independent-source counting.
Google Sheets (and more) for Claude via gogcli — read, write, and manage spreadsheets
Google Classroom via gogcli for Claude — courses, assignments, submissions, grading
Extended Google Docs for Claude via gogcli — auth + full Docs and comments support
Google Drive via gogcli for Claude — search, upload, download, permissions
Extended Google Sheets for Claude via gogcli — auth + full Sheets support
Hemnet.se real estate for Claude: search, sold prices, listings & market stats
HoneyBook client-portal MCP server for Claude — view contracts and invoices from wedding vendors
iOffice workspace management for Claude — book rooms, manage visitors, maintenance tickets
OneHome (CoreLogic) real-estate access for Claude — search, property details, photos, saved homes
Resy reservation management — search, book, cancel, favorites, and Priority Notify for Claude
Search Viator tours and activities — products, availability, attractions, destinations.
Chromium Style QR Code Generator
MCP server for generating Chromium-style QR codes with optional Dino logo or custom center image
io.github.chudah1/attest-mcp
Credential enforcement middleware for MCP servers — verifies scoped tokens on every tool call
PlaceRoot
29 tools, no API key — grounds AI agents in Overture Maps open data.
Live X/Twitter search and AI trend digests. No Twitter API key — pay per call in USDC via x402.
Used & imported cars in Portugal: search stock, ISV/IUC tax calc, resale value, contact.
Kronos crypto signals + trade decisions + 819 automation prompts. x402 micropayments, USDC/Base.