{"name":"Email Auth Check: SPF, DMARC, DKIM (x402, $0.01)","description":"SPF, DMARC, DKIM and MX check for any domain with an A-F grade and issue list, $0.01 per call over x402.","price":"$0.01 USDC on Base per call (x402 v2, exact scheme). No API key, no signup.","tools":[{"name":"email_auth_check","http":"GET https://email-auth-x402.sdnscreen.workers.dev/v1/email-auth?domain=google.com&selector=20230601","description":"Checks a domain's email authentication: parses SPF (+all, ?all, multiple records, over 10 DNS lookups), DMARC (p, sp, pct, rua), DKIM keys (your selector or 15 common ones) and MX, then returns an A-F grade, 0-100 score and coded issues (spf_missing, dmarc_p_none, ...). Use when an agent must judge if a domain can be spoofed, debug deliverability, or vet a sender/vendor domain. $0.01 USDC on Base."}],"mcp":{"url":"https://email-auth-x402.sdnscreen.workers.dev/mcp","transport":"streamable-http","payment":"x402 in _meta['x402/payment']"},"discovery":["/openapi.json","/.well-known/x402","/.well-known/mcp.json","/llms.txt"],"contact":"junk.leads@agentmail.to"}