{"uid":"cap_G8S9mFQMwqJ_Tx1bY_pOP","slug":"one-engine-email-verify-basic-fdbf5df4","name":"ONE Engine Email Verify Basic","description":"Low-cost pay-per-call utility APIs for autonomous agents using x402 on Base.","url":"https://one-search.one-engine.workers.dev/v1/email/verify?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"email":{"type":"string","description":"Email address to validate"}}},"responseSchema":{"type":"json","example":{"risk":"low","email":"user@example.com","scope":"Syntax, MX and basic domain heuristics only. No SMTP mailbox existence check.","checks":{"mx_found":true,"syntax_valid":true,"disposable_domain":false,"role_based_local_part":false},"product":"email_verify_basic"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.0024","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":"$0.0024/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0024","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0024","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_VsPyfaKTGSWVafxOqRxPp","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.0024","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Validates an email address for syntax correctness, MX record existence, disposable domain detection, and role-based address identification","exampleAgentPrompt":"Can you validate the email address 'john.doe@example.com' and tell me if it has valid syntax, a real MX record, and whether it looks like a disposable or role-based address?","exampleUseCases":[{"title":"Pre-send email list scrubbing","prompt":"Before I send this campaign, check if 'newsletter-signup@tempmail.io' is a real address — I want to know if it has valid syntax, a working MX record, and whether it's a throwaway domain."},{"title":"Sign-up form fraud filter","prompt":"A new user just registered with 'admin@guerrillamail.com' — validate it and tell me if it's a disposable or role-based email I should reject."},{"title":"CRM lead quality check","prompt":"I have a sales lead that gave us 'info@bigcorp.net' as their email — can you check if it's valid and flag if it's a role address like a generic inbox?"}],"resultDescription":"Returns a JSON object containing the original email, an overall risk level (e.g. 'low'), individual boolean check results for syntax validity, MX record presence, disposable domain detection, and role-based local part detection, plus a scope note clarifying that no SMTP mailbox existence check is performed.","failureModes":["Missing or empty email field returns an error","Malformed request body causes a 400-level response","MX lookup may fail for obscure TLDs or newly registered domains","Disposable domain list may not include the very latest throwaway providers","Network timeout on upstream DNS resolution for MX checks"],"whenToPreferThis":"Choose this endpoint when you need a lightweight, low-cost email pre-screening at sign-up, lead capture, or list import time — especially when you want syntax, MX, disposable-domain, and role-address checks in a single call without the latency or cost of a full SMTP probe. Ideal for autonomous agents that need to filter obvious junk emails cheaply before investing in deeper verification.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T02:57:00.235Z","isFirstParty":false,"canonicalSlug":"one-engine-email-verify-basic-fdbf5df4"}