{"uid":"cap_YQvg_uo3o9Oa06vaMn3hv","slug":"the-stall-email-verify-42703f10","name":"The Stall Email Verify","description":"Email address validation and quality scoring. Checks RFC-5322 syntax, detects disposable/throwaway domains (via Kickbox free API), and verifies DNS MX record presence (via Cloudflare DoH). Returns a quality score (0-100) and verdict: DELIVERABLE | RISKY | UNDELIVERABLE | INVALID. Useful for lead qualification, form validation, and filtering bot signups.","url":"https://the-stall.intuitek.ai/cap/email-verify?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"required":{"type":"string"},"properties":{"type":"string"}}},"responseSchema":null,"example":{"request":{"input":{"type":"http","method":"GET","queryParams":{"email":"test@example.com"}}},"response":{"email":"test@example.com","flags":[],"domain":"example.com","verdict":"DELIVERABLE","mx_check":{"has_mx":true,"mx_records":[{"host":".","priority":0}]},"local_part":"test","generated_at":"2026-06-18T06:25:28.011Z","syntax_valid":true,"is_disposable":false,"quality_score":100}},"exampleRequest":{"email":"test@example.com"},"tags":["x402"],"displayCostAmount":"0.006","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","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":"$0.006/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.034","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.034","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_0nG6szcXVjv8NewsQhD4r","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.034","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 format correctness and deliverability using a pay-per-call x402 API requiring no account or API key","exampleAgentPrompt":"Can you verify whether 'john.doe@acmecorp.com' is a valid, deliverable email address before I add it to our outreach list?","exampleUseCases":null,"resultDescription":"Returns a validation result indicating whether the given email address is properly formatted and likely deliverable, potentially including details such as domain validity, MX record presence, disposable email detection, or syntax errors.","failureModes":["Missing required 'email' query parameter — returns 400 or error response","Malformed email string passed — may return invalid format error","Payment not completed via x402 USDC on Base — returns 402 Payment Required","Network timeout or upstream service unavailability — returns 5xx error","Disposable or role-based email detection may produce false positives"],"whenToPreferThis":"Choose this endpoint when you need a lightweight, no-account-required email validation check paid per-call in USDC, ideal for agents that only occasionally need to verify emails without committing to a subscription-based email validation API.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-11T18:42:36.345Z","isFirstParty":false,"canonicalSlug":"the-stall-email-verify-42703f10"}