{"data":{"slug":"paywallwatch","name":"PaywallWatch","description":"Use when an agent needs email validation, screening only, for an address from a form, a scrape or a CRM and must decide whether it is worth sending to. Screens the address: syntax, DNS mail exchanger, disposable domain, role account, free provider and common typos. It does not verify that the mailbox exists. A DNS failure answers 503 and is not charged.","base_url":"https://api.paywallwatch.com","website_url":"https://paywallwatch.com","category":"Verification","endpoint_count":2,"min_price_usd":0.003,"uptime_24h":100,"source":"submitted","status":"online","verified":false,"verified_until":null,"payment_ready":true,"payment_ready_until":"2026-11-05T19:43:14.556Z","last_success_at":"2026-10-29T19:43:14.556Z","consecutive_failures":0,"check_interval_minutes":15,"last_checked_at":"2026-10-29T19:43:14.556Z","created_at":"2026-10-29T16:27:15.096Z","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":735,"total_checks":13,"networks":["BSE","SOL"],"networks_caip2":["eip155:8453","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"asset":"USDC","endpoints":[{"id":"39648cb6-7fb4-4454-a4c7-6a1319410c39","method":"GET","path":"/v1/email/verify","description":"Use when an agent needs email validation, screening only, for an address from a form, a scrape or a CRM and must decide whether it is worth sending to. Screens the address: syntax, DNS mail exchanger, disposable domain, role account, free provider and common typos. It does not verify that the mailbox exists. A DNS failure answers 503 and is not charged.","mime_type":"application/json","is_active":true,"first_seen_at":"2026-10-29T16:27:15.096Z","last_seen_at":"2026-10-29T19:43:14.543Z","variable_amount":false,"min_price_usd":0.003,"networks":["BSE","SOL"],"pricing":[{"scheme":"exact","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"3000","price_usd":"0.0030000000","pay_to":"0xAE71740237442f5f1a2A7b4f59A201e9a4350C0C","max_timeout_seconds":300},{"scheme":"exact","network":"solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp","network_caip2":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","asset_address":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","asset_address_norm":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","asset_name":"USDC","price":"3000","price_usd":"0.0030000000","pay_to":"8DH2FPfSPydYXvXSxrG3tLdzDVpyJDyKG5pKkXpwK1rn","max_timeout_seconds":300}],"pay_to_divergence":null},{"id":"38090437-b17b-44de-a40f-114d029d3e4d","method":"GET","path":"/v1/ping","description":"Use when testing an x402 client end to end. Returns ok and the server time; costs one cent.","mime_type":"application/json","is_active":true,"first_seen_at":"2026-10-29T16:27:15.096Z","last_seen_at":"2026-10-29T19:43:14.533Z","variable_amount":false,"min_price_usd":0.01,"networks":["BSE","SOL"],"pricing":[{"scheme":"exact","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"10000","price_usd":"0.0100000000","pay_to":"0xAE71740237442f5f1a2A7b4f59A201e9a4350C0C","max_timeout_seconds":300},{"scheme":"exact","network":"solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp","network_caip2":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","asset_address":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","asset_address_norm":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","asset_name":"USDC","price":"10000","price_usd":"0.0100000000","pay_to":"8DH2FPfSPydYXvXSxrG3tLdzDVpyJDyKG5pKkXpwK1rn","max_timeout_seconds":300}],"pay_to_divergence":null}],"pay_to_changes":[],"assessment":{"updated_at":"2026-10-29T16:33:07.719Z","input_hash":"92cfa0c9303850ef5fed02b15de6c0476b66f831313a68ddb126ab21a502ce1b","model_id":null,"prompt_version":null,"reliability":{"uptime":{"24h":null,"7d":null,"30d":null,"90d":null},"response_p95_ms":968,"avg_response_ms":968,"last_checked_at":"2026-10-29T16:28:02.116Z","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":"2026-10-29T19:43:14.556Z","envelope_captured_at":"2026-10-29T16:28:02.116Z"}},"site":{"homepage":false,"openapi":true,"pricing":false,"llms_txt":false,"robots":true,"terms":false,"checked_at":"2026-10-29T16:33:06.216Z"},"domain":{"age_days":null,"registrar":null,"free_host":false,"created_date":null,"checked_at":"2026-10-29T16:33:07.635Z"},"economics":{"price_usd":0.003,"price_atomic":"3000","model":"tiered","category_percentile":21,"stability":1,"price_max_usd":0.01,"category_percentile_max":25,"endpoint_count":2,"distinct_price_count":2},"risk":{"level":"clean","flags":[]},"synthesis":null,"traction":null}},"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/paywallwatch","source":"https://x402-list.com"}}