{"x402Version":2,"service":{"name":"Agent Email Check","slug":"email-check","version":"1.0.0","base_url":"https://mailcheck.netzhandwerker.de","tags":["email-validation","email-verification","mx-lookup","disposable-email","role-account","typo-correction","catch-all","lead-qualification","agent-tools","list-hygiene"]},"payment":{"protocol":"x402","scheme":"exact","network":"eip155:8453","network_name":"Base Mainnet","chain_id":8453,"asset":"USDC","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","pay_to":"0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E","facilitator":"https://facilitator.xpay.sh","headers":{"primary":"PAYMENT-SIGNATURE","accepted":["PAYMENT-SIGNATURE","X-Payment","PAYMENT"],"challenge":["PAYMENT-REQUIRED"],"response":["PAYMENT-RESPONSE"]}},"resources":[{"resource":"https://mailcheck.netzhandwerker.de/email","method":"POST","price":{"amount":"1000","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","decimals":6,"display":"$0.001"},"description":"Check one email address: syntax, mail route, MX hosts, disposable provider, role account, typo suggestion, catch-all estimate and a verdict with a confidence between 0 and 1.","mimeType":"application/json"},{"resource":"https://mailcheck.netzhandwerker.de/email/batch","method":"POST","price":{"amount":"600","amount_is":"per address","max_amount":"60000","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","decimals":6,"display":"$0.0006 per address, at most $0.060000"},"description":"Check up to 100 email addresses in one paid call, billed per address.","mimeType":"application/json"}],"verdicts":{"deliverable":"The mail server accepted this recipient and the domain is not catch-all. Only reachable with an SMTP probe.","undeliverable":"The mail server rejected this recipient permanently.","invalid":"The address cannot receive mail: broken syntax, no MX and no A record, or a null MX record.","risky":"A mail route exists, but a concrete negative signal is attached: disposable provider, catch-all domain or a likely typo.","unknown":"A mail route exists and nothing is known about this specific mailbox. This is the honest default without an SMTP probe."},"honesty_rule":["This service never claims that a mailbox exists without evidence.","DNS proves that a domain accepts mail. It proves nothing about the mailbox in front of the at sign.","Without an SMTP probe the verdict of a routable address is \"unknown\" and the confidence is capped at 0.7.","The SMTP probe is optional, off by default, heavily throttled, and contacts a target once without any retry.","A temporary 4xx reply is treated as no answer, not as a yes."],"discovery":{"openapi":"https://mailcheck.netzhandwerker.de/openapi.json","mcp":"https://mailcheck.netzhandwerker.de/mcp","llms_txt":"https://mailcheck.netzhandwerker.de/llms.txt","pricing":"https://mailcheck.netzhandwerker.de/pricing","health":"https://mailcheck.netzhandwerker.de/health"}}