38,706 servers. Updated 2026-10-28 22:10

"Authy" matching MCP connectors:

GET /v1/connectors – MCP directory API reference

Matching Connector Tools:

Email Auth Checker A
dev.workers.quietworklabs.email-auth-check
SPF, DKIM, DMARC, MTA-STS and domain-expiry checks for any domain, with SPF lookup counts.
Security Networking & Infrastructure Email
41
https://email-auth-check.quietworklabs.workers.dev/mcp
Agent Preflight: OFAC, DNS, Email Auth, Domain, Email & URL A
dev.workers.sdnscreen.sdn-screen-x402
$0.01/call via x402: OFAC wallet screen, DNS, email auth, domain age, email verify, URL unshorten.
Security Networking & Infrastructure Legal & Compliance
61
https://sdn-screen-x402.sdnscreen.workers.dev/mcp
x402 DNS Email Auth Checker A
dev.workers.microtools-x402.x402-dns-auth-checker
Audit SPF, DKIM, DMARC, MX, BIMI, MTA-STS for a domain; score + grade. $0.003 USDC/call via x402.
Email Networking & Infrastructure Security
21
https://x402-dns-auth-checker.microtools-x402.workers.dev/mcp
Proxy-Authenticate scheme token, value discarded C
io.github.sadri-dridi
Proxy-Authenticate scheme token, value discarded
Security Networking & Infrastructure
311
https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/proxy-auth/mcp
HTTP 511 network-auth C
io.github.sadri-dridi
Meaning of HTTP 511.
Documentation Access Networking & Infrastructure Security
311
https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/http-511/mcp
Domain Trust Check (DNS, Email Auth, TLS, Headers)A
io.github.pcp183
Check a domain's DNS, SPF/DMARC and TLS before trusting it. $0.003/call via x402.
Networking & Infrastructure Security
1
https://domain-check-production-6228.up.railway.app/mcp