"Google's email service" matching MCP connectors:
GET /v1/connectors — MCP directory API referenceMatching Connector Tools:
Verify anything: email, phone, domain, URL and IBAN validation, phishing/malware URL screening, and OFAC sanctions checks. Pay-per-check in USDC on Base via x402 — no signup, no API keys.
Issue and manage Brazilian service invoices (NFS-e) by chatting with your agent, platform-hosted, no
Verification and routing for autonomous agents: crawler ID, email, web capture, data routing.
Four market-statistics tools + a free qd_ key by email: 1 anonymous look, then 10 calls/UTC day.
OpenFIGI — Bloomberg open financial-instrument symbology service
Tollbooth Authority — Certified Purchase Order Service for DPYC operators
Email, phone, domain, URL & OFAC verification; phishing and IBAN checks via x402.
EU compliance checks for AI agents: sanctions, company, VAT ID, IBAN, email. Pay per call.
Validation suite: EU VAT (VIES), IBAN mod-97, email (MX+disposable), geo place lookup, VIN decode.
Score an IP, email, phone, domain or device for fraud in one call, with the signals behind it.
Commerce validators: live EU VAT (VIES), EORI, email/MX lookups; IBAN/ABA/GTIN checksums; VAT rates.
Live vehicle warranty (service contract) quotes by VIN, plate, or make/model/year.
The only x402 MCP server for Robinhood Chain (chainId 4663) - 147 onchain, trading & AI tools.
Try 26 utility REST APIs keylessly: NAICS classification, IP geo, email validation, currency.
Deterministic finance & quant tools AI agents call and pay for per request over x402 (USDC on Base) — DCF/IRR/XIRR/NPV, LP/GP distribution waterfalls, Black-Scholes pricing & Greeks, bond yield/duration/amortization, portfolio risk, wallet AML screening, and email validation. No API key, no data feed; deterministic, evidence-backed; $0.02–$2.00 USDC per call.
135 MCP tools: geo, email, phone, company, DNS, FX, equities, weather, tax, econ, intel — one key.
Brazil NFS-e service invoices for AI agents via Focus NFe and NFe.io. Stateless, never stores data.
Receipt tracker with no friction: receipts arrive by email and file themselves
CardGuard is a high-performance MCP-compliant service designed for real-time transaction fraud detection and IP threat intelligence. It provides microsecond-level scoring and multi-dimensional analysis (IP geolocation, BIN validation, and risk pattern recognition) for autonomous AI agents
184 MCP tools for field-service CRM, scheduling and double-entry accounting. Hosted; BYO agent.
