{"data":{"slug":"mailcheck-api","name":"MailCheck API","description":"Email and domain validation for AI agents by Rowan Vale (built with AI assistance). /v1/email-check validates up to 100 emails per call: syntax and normalization, MX via DNS-over-HTTPS, disposable-domain flag (9.9k CC0 list), role and free-provider flags, typo suggestion, verdict and score (no SMTP probing). /v1/domain-check audits up to 2 domains: MX/NS/TXT, SPF and DMARC parsing, DKIM at 10 common selectors, RDAP registrar/expiry/DNSSEC and an A-F grade. $0.001 per item in USDC on Base (quote scales with item count); GET or POST. Free tier 50 checks/day per IP.","base_url":"https://mailcheck.toolschemaforge.workers.dev","website_url":"https://mailcheck.toolschemaforge.workers.dev/","category":"Verification","endpoint_count":2,"min_price_usd":0.001,"uptime_24h":100,"source":"submitted","status":"online","verified":false,"verified_until":null,"payment_ready":true,"payment_ready_until":"2026-11-03T14:29:07.604Z","last_success_at":"2026-10-27T14:29:07.604Z","consecutive_failures":0,"check_interval_minutes":15,"last_checked_at":"2026-10-27T14:29:07.604Z","created_at":"2026-10-27T11:30:17.737Z","uptime":{"24h":100,"7d":100,"30d":100,"90d":100,"coverage":{"24h":{"daysCovered":1,"checkCount":10},"7d":{"daysCovered":1,"checkCount":10},"30d":{"daysCovered":1,"checkCount":10},"90d":{"daysCovered":1,"checkCount":10}}},"avg_response_time_ms":447,"total_checks":12,"networks":["BSE"],"networks_caip2":["eip155:8453"],"asset":"USDC","endpoints":[{"id":"bf7456c4-78fa-49d5-8745-8573f82750d2","method":"GET","path":"/v1/domain-check","description":"Check 1-2 domains ($0.001 each): A/AAAA/MX/NS/TXT records, SPF parse (all qualifier, includes, lookup count), DMARC parse (policy, pct, rua), DKIM keys at common selectors, RDAP registrar/created/expiry/status, and an A-F grade with reasons. GET form: ?domain=... or ?body=<url-encoded JSON>.","mime_type":"application/json","is_active":true,"first_seen_at":"2026-10-27T11:30:17.737Z","last_seen_at":"2026-10-27T14:29:07.581Z","variable_amount":false,"min_price_usd":0.001,"networks":["BSE"],"pricing":[{"scheme":"exact","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"1000","price_usd":"0.0010000000","pay_to":"0x7a3C00Ef0969378A3E74455cde3Dc87C0f016dfa","max_timeout_seconds":120}],"pay_to_divergence":null},{"id":"cb503067-6e91-4a1c-83e0-50e2ab0b4935","method":"GET","path":"/v1/email-check","description":"Check 1-100 email addresses ($0.001 each): RFC syntax, normalization and canonical form, MX lookup (A fallback), disposable domain (CC0 list), role account, free provider, typo suggestion (gmial.com -> gmail.com), verdict and 0-100 score. No SMTP probing. GET form: ?email=... or ?body=<url-encoded JSON>.","mime_type":"application/json","is_active":true,"first_seen_at":"2026-10-27T11:30:17.737Z","last_seen_at":"2026-10-27T14:29:07.573Z","variable_amount":false,"min_price_usd":0.001,"networks":["BSE"],"pricing":[{"scheme":"exact","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"1000","price_usd":"0.0010000000","pay_to":"0x7a3C00Ef0969378A3E74455cde3Dc87C0f016dfa","max_timeout_seconds":120}],"pay_to_divergence":null}],"pay_to_changes":[],"assessment":{"updated_at":"2026-10-27T11:33:53.363Z","input_hash":"2e8b5e3a5394f0ef63a368e4845c777568d66d201aba4e9a608eef281688793f","model_id":null,"prompt_version":null,"reliability":{"uptime":{"24h":null,"7d":null,"30d":null,"90d":null},"response_p95_ms":388,"avg_response_ms":388,"last_checked_at":"2026-10-27T11:32:00.920Z","consecutive_failures":-1,"total_checks":1},"compliance":{"grade":"A","passed":14,"total":14,"checks":[{"id":"payload_captured","label":"402 payload captured","pass":true},{"id":"accepts_present","label":"accepts[] array present","pass":true},{"id":"payto_recoverable","label":"payTo address recoverable","pass":true},{"id":"payto_conformant","label":"payTo at accepts[0].payTo (conformant shape)","pass":true},{"id":"payto_shape","label":"payTo is a valid on-chain address","pass":true},{"id":"price_present","label":"atomic price declared","pass":true},{"id":"price_sane","label":"atomic price in a sane range","pass":true},{"id":"asset_declared","label":"asset (token) address declared","pass":true},{"id":"network_caip2","label":"network resolves to CAIP-2","pass":true},{"id":"scheme_declared","label":"payment scheme declared","pass":true},{"id":"transport_https","label":"served over HTTPS","pass":true},{"id":"x402_version_current","label":"declares the current x402 version (2)","pass":true},{"id":"eip712_domain_extra","label":"EIP-712 domain parameters present on every EVM entry","pass":true},{"id":"version_channel_coherent","label":"x402 v2 envelope delivered in the payment-required header","pass":true}],"pay_to_source":"payTo","pay_to_location":"accept","staleness":{"probe_failing":false,"last_success_at":"2026-10-27T14:29:07.604Z","envelope_captured_at":"2026-10-27T11:32:00.920Z"}},"site":{"homepage":true,"openapi":true,"pricing":false,"llms_txt":true,"robots":true,"terms":false,"checked_at":"2026-10-27T11:33:52.789Z"},"domain":{"age_days":null,"registrar":null,"free_host":true,"created_date":null,"checked_at":"2026-10-27T11:33:53.342Z"},"economics":{"price_usd":0.001,"price_atomic":"1000","model":"flat","category_percentile":7,"stability":1,"price_max_usd":0.001,"category_percentile_max":2,"endpoint_count":2,"distinct_price_count":1},"risk":{"level":"clean","flags":[]},"synthesis":null,"traction":{"status":"measured","volume_usd_30d":0,"tx_count_30d":0,"unique_buyers_30d":0,"last_settlement_at":null,"top_buyer_share_30d":null,"top_3_buyers_share_30d":null,"concentrated_volume":false,"trend_7d_vs_30d":null,"shared_payout":false,"shared_with":0,"measured_networks":["eip155:8453"],"first_settlement_at":null,"volume_usd_all_time":0,"tx_count_all_time":0,"median_settlement_usd_30d":null,"max_settlement_usd_30d":null,"settled_via":[],"settled_via_detail":[],"shared_with_services":[],"pro_quota_share":1,"caveat":"Conservative undercount: only USDC settlements via facilitators we measure are counted. A measured floor, not an estimate.","all_time_caveat":"All-time is floored at the start of our harvest window, not the service full history."}}},"provenance":{"license":"CC-BY-4.0","attribution_required":true,"attribution":"Data: x402-list.com (CC BY 4.0)","cite_as":"https://x402-list.com/services/mailcheck-api","source":"https://x402-list.com"}}