SPF, DKIM, DMARC, MTA-STS, DNSSEC, TLS and DNS checks for domains, paid per call in USDC (x402)
Free
One server, in security & testing. SPF, DKIM, DMARC, MTA-STS, DNSSEC, TLS and DNS checks for domains, paid per call in USDC (x402)
Security & Testing
SPF, DKIM, DMARC, MTA-STS, DNSSEC, TLS and DNS checks for domains, paid per call in USDC (x402)
The rest either hold an API key issued by the publisher or ask for nothing.
Listed without a verification tick. Read the listing before installing.