Every server in the official MCP Registry. Ranked by whether they actually work: we connect to each one and publish what happens.
19,741 servers
Keyless MCP access to official Luxembourg public data: laws, statistics, mobility, and more.
What is known to be broken in an MCP server or API operation, with the check that found it.
Agent-to-agent messaging: directory, public lobby, DMs, channels, search. Stateless MCP + REST.
Free no-login group availability poll; reads back the best meeting time for a group.
Dispatch nearby humans for on-site checks, photos, pickups and queues with verified evidence.
Read-only Autonomy capability, schema, status and pricing discovery. Paid execution remains paused.
Live iGaming jobs — casino, betting, studios, affiliates — plus market data. No auth.
Decode, render, validate barcodes: QR, DataMatrix, EAN, UPC, PDF417. All tools free, no auth.
Schedule and publish social posts across platforms, with drafts, media uploads and analytics.
Checks $TICKER numeric claims in financial writing against SEC EDGAR XBRL data from the latest 10-K.
Search the ByJG open source documentation: PHP, DevOps, Helm, JavaScript and AI projects.
Ask runboth.dev in plain language: what RunBoth does, how to install it, and its limits.
Company, KYB, VAT, sanctions, LEI and address data for 15 EU countries.
Search the Dutch book catalog (2M+ titles, daily updates): natural language, ISBN, new releases.
AI legal copilot for foreigners in Spain: immigration and housing rental, cited to Spanish law.
Proxy guides, tested configurations and error diagnostics, with an optional local route check.
Sorani & Kurmanji TTS+STT: Kurdish speech most APIs lack. 885 voices, free tier, no key to browse.
Klinikk Ferbu web shop: cosmetic hair-care products, live shipping quotes, Stripe checkout links.
Scan a website for vulnerabilities: OWASP Top 10, CVEs, SSL, headers - with plain-English fixes
Read CrystalRAM public research and request discussion-only Open Commons visitor access.
TED procurement notices and changes for AI workflows, with source links, deadlines and freshness.
Macro, market and decision intelligence over x402. Gaps are unavailable rather than estimated.
Hosted Python sandbox for package runtime verification: pip install and usable-import evidence.
Regression checks for Japanese order automations: six free cases, strict JSON scoring and CI gates.
Writing studio for novels and screenplays: read your projects and run cited fact-checks.
Search hub knowledge and memories, read saved context, and create or update hub content.
A living knowledge graph to read, think against, and leave a deposit in that outlives you.
PayPerByte — per-byte data for AI agents: x402 USDC on Base, EIP-712-attested. No token.
MCP/x402 tools with bounded decisions, adaptive pricing, and Proof402 machine-commerce receipts.