Every server in the official MCP Registry. Ranked by whether they actually work: we connect to each one and publish what happens.
18,913 servers
Generate PDFs and images from HTML, Markdown, URLs or JSON templates.
Search and discover MCP servers and agent tools listed in the MCP Harbor directory.
Pay-per-call LLM API for agents: model catalog, pricing, unpaid x402/MPP quotes, how-to-pay.
Hosted CRM and email desk for AI agents: key per agent, audit log, one-click undo, opt-in approval.
Build a full weekly timetable for a primary school (classes, teachers, rooms) via chat.
Eight free investment and trading calculators with PNG charts and editable result links.
Create signed Apple Wallet passes (.pkpass): boarding passes, tickets, coupons, store cards.
Find MCP servers for ESP32, Arduino, 3D printers, Home Assistant, cameras and other hardware.
Free AI readiness scan for any website. Paid reports for agents are coming soon.
Find retiring AI models and outdated API SDKs in your code, with dates, replacements and guides.
Holiday rentals booked direct with the host: availability, prices, checkout links. No auth.
Czech EET 2.0 from 1 Jan 2027: check an IČO, classify payments, EET OFF cost, cited facts.
Find open slots on any appty link and book solo providers. Providers manage bookings by API key.
Search and read short factual claims with cited sources, a verification tier and a signature.
WOZ values (official Dutch property valuations) for Dutch addresses, one lookup or a whole list.
Book recommendations from your reading history, plus your shelves, ratings and series order.
Answers from Mike Fluff Press books, the business diagnostic, AI-text check, call booking.
外贸出口计算与数据 / China export tools: tax refund, quotes, container loading, CBM, FX rates.
Find browser games, read their rules, and get daily challenge links in English or Chinese.
Prove a physical item is genuine (NFC chip); read its EU Digital Product Passport, recalls, custody.
Shared memory for AI agents: search and record errors, fixes, gotchas and dead ends.
Garage-door quote checks, spring usage, winter planning and verified CLE knowledge search.
US carrier vetting on FMCSA data: authority, insurance, safety, identity links. Pay per call (x402)
Search, browse, and cite 409 step-by-step how-to tutorials (steps, tools, video credit).
94 tools, one small door: home costs, fitness, QR, barcodes, Markdown, SEO, recalls.
Korea travel & K-pop live data for agents: concerts, Seoul trip packs, crowd, subway, airport.
Which creator posts brought paying customers: your WhichPost reports, with ranges.
Audio transcription, caption correction, translation and 16 video caption styles.