{"uid":"cap_707N_maQDG360xgiDlPPb","slug":"apiosk-gateway-email-verification-4eac2687","name":"Apiosk Gateway – Email Verification","description":"Pay-per-call API gateway on the x402 protocol (HTTP 402 + USDC on Base). This document covers the gateway's discovery and execution meta-endpoints. Individual provider APIs are reachable at /{api_slug}/{path} and described by GET /{api_slug}/metadata.","url":"https://gateway.apiosk.com/email-verification/execute","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"input":{"type":"string","description":"JSON payload forwarded to the selected operation."},"operation":{"type":"string","description":"Operation id, /path, or METHOD /path selector."}}},"responseSchema":{"type":"object","required":["status","result"],"properties":{"api":{"type":"string"},"cost":{"type":"string"},"result":{"description":"Upstream response body."},"status":{"type":"string"},"latency":{"type":"number"},"operation":{"type":"string"},"upstream_status":{"type":"integer"}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.1495","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.13/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.13","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.13","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_5gvJ1mlOFrLV7SaAbgh6u","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.13","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Verifies whether an email address is valid, deliverable, and non-disposable via a pay-per-call x402 gateway endpoint.","exampleAgentPrompt":"Can you check whether 'john.doe@example.com' is a valid, deliverable email address and not a disposable or fake one?","exampleUseCases":[{"title":"Signup form email gating","prompt":"Before we create this account, verify that 'newuser@tempmail.org' is a real, non-disposable email address that can actually receive messages."},{"title":"Bulk CRM list hygiene","prompt":"I have a lead email 'sales.contact@somebiz.net' — can you validate it to make sure it's deliverable and not going to bounce before we add it to our outreach campaign?"},{"title":"Fraud prevention at checkout","prompt":"A customer just entered 'buyer123@fakeinbox.com' during checkout — can you check if that email is legitimate or looks like a throwaway address?"}],"resultDescription":"Returns a JSON object with a status field indicating success or failure, a result field containing the upstream verification response (validity, deliverability, disposable flags, etc.), the operation performed, upstream HTTP status code, latency in milliseconds, and cost of the call in USDC.","failureModes":["Invalid or malformed email input returns an error status from upstream","Upstream provider unavailable causes non-200 upstream_status with degraded result","Missing or malformed operation selector causes gateway-level rejection","Insufficient USDC balance or failed x402 payment prevents execution","Rate limiting or quota exhaustion from upstream provider"],"whenToPreferThis":"Choose this endpoint when you need real-time, per-call email validation paid via crypto (USDC on Base) without a subscription, especially in agent workflows where micropayment-based access is preferred over API key management. Ideal for low-volume or on-demand checks where pay-per-use pricing at $0.13/call is acceptable.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T18:54:11.382Z","isFirstParty":false}