Every server in the official MCP Registry. Ranked by whether they actually work: we connect to each one and publish what happens.
50,370 servers
Pay-per-call web page to markdown, metadata and links for agents. x402 USDC on Base or Algorand.
x402 structured link extraction for agents. $0.0005 per successfully processed page.
Bonafido: is a domain a real business site? Verdict, trust score, risk flags.
Free US data lookups: ZIP demographics, CISA KEV/EPSS CVEs, domain rank, county spending, recalls.
Zillow for-sale, for-rent and sold listings, and full property details, as structured JSON.
Inspect one endpoint's served certificate, expiry, hostname coverage, and accepted TLS versions.
Is a domain registrar still ICANN-accredited, and has ICANN acted against it? 4,500+ registrars.
RegEvidenceHub Taxi: England taxi/PHV licensing preflight and council comparison.
Probe a signup URL you own and score whether an AI agent can sign up unaided.
Validate JSON, YAML, XML and CSV with exact line/column errors and silent-corruption warnings.
Read-only discovery for a finite, offline-capable market briefing with explicit evidence boundaries.
Delegate 20 typed, evidence-backed WaveEngine signal work products with fixed-request x402.
Live product search for AI agents across Shopify merchants and major retailers.
502 utilidades deterministas gratis y sin llave para agentes: NIT, festivos, IVA, CUFE, aeropuertos
Shelters, food, housing, healthcare and support services in every US state, by county or distance.
11 commerce tools: product data, store discovery, merchant evidence. 10 free calls a day, then USDC.
Korea travel data: 50K+ places in 13 languages, festivals, crowd forecasts, itineraries
Free compare_page_observations for two held JSON pages. No fetch, wallet, or payment.
Message, ask for a quote or book a call with Surfing Dog, through its open-source inbox.
Smart ring research and regional buying links; affiliate links may earn commission.
What fits, with live prices: specs, fit verdicts with rule ids and stock for home espresso.
Live USD prices for the top 100 cryptocurrencies, plus a daily BUY/HOLD/SELL signal for Zcash.
Guide to IoMarkets.ai Federated Computing: receipt checks, runs, costs and evaluation requests.
Full-text search over FSS/FSC accounting supervision documents for Korean accounting professionals
Live crypto market data and Hyperliquid wallet reports for AI agents, paid per call with x402.
Dutch construction facts with measured accuracy + NL coordination. Never holds third-party funds.
Spiritual wellness journeys, retreats and sessions across India, with plans and published prices
Find, price and order UmbHost Umbraco hosting, UmbCheckout licences and domains; a human pays.
Polymarket resolution-rule research for approved customers; public discovery is separate.