Every server in the official MCP Registry. Ranked by whether they actually work: we connect to each one and publish what happens.
20,797 servers
SEFAZ CE: Cupom Fiscal Eletrônico (SAT), official-source lookup. Platform-hosted, pay per query with
Add prospects, book club appointments.
SEFAZ CE: Clearance Certificate (Debts), official-source lookup. Platform-hosted, pay per query with
Walk Score MCP — wraps the Walk Score API (walkscore.com)
SimpleTexting business SMS marketing MCP server: list conversations, send message, schedule message.
SEFAZ CE: Certidao de Regularidade, official-source lookup. Platform-hosted, pay per query with prep
W3C MCP — web-standards lookup over w3c/browser-specs (GitHub, CF-reachable). ~800 current web…
SEFAZ: Cadastro Centralizado de Contribuinte (CCC), official-source lookup. Platform-hosted, pay per
Sign in class participants, cover teacher substitutions, manage private sessions.
VirusTotal MCP — file / URL / domain / IP reputation (BYO key)
SEFAZ BA: NFC-e (Completa), official-source lookup. Platform-hosted, pay per query with prepaid cred
Code of Virginia — state statutes by citation.
SEFAZ BA: NFC-e, official-source lookup. Platform-hosted, pay per query with prepaid credit.
Videogames MCP — wraps Free-to-Play Games API (freetogame.com, free, no auth)
SEFAZ BA: IPVA Notificado, official-source lookup. Platform-hosted, pay per query with prepaid credi
Washington State DMV MCP — the Department of Licensing's VIN-level electric-vehicle population…
SEFAZ BA: IPVA, official-source lookup. Platform-hosted, pay per query with prepaid credit.
VizieR MCP — CDS astronomical catalogue access.
SEFAZ AP: NFC-e, official-source lookup. Platform-hosted, pay per query with prepaid credit.
Visual Crossing Weather MCP — wraps the Visual Crossing Weather Timeline API…
SEFAZ AP: Clearance Certificate (Debts), official-source lookup. Platform-hosted, pay per query with
Visa Requirements MCP — passport visa rules for any nationality → destination pair
SEFAZ AM: NFC-e Completa, official-source lookup. Platform-hosted, pay per query with prepaid credit
VesselFinder MCP — wraps the VesselFinder AIS API (vesselfinder.com)
SEFAZ AM: NFC-e, official-source lookup. Platform-hosted, pay per query with prepaid credit.
EU VIES VAT-number validation MCP (European Commission).
SEFAZ AM: Clearance Certificate (Debts) (Certificado Digital), official-source lookup. Platform-host
Vessel Tracking — live worldwide ship positions from AIS.
SEFAZ AM: Clearance Certificate (Debts), official-source lookup. Platform-hosted, pay per query with