{"uid":"cap_kAtQqLuBD1S_Jh-HBnHSj","slug":"email-address-validator-74562901","name":"Email Address Validator","description":"60 paid endpoints with no metering, no API key and no account. Each endpoint has one flat price per call, whatever the size of the request: LLM completions with automatic failover across several large models, read-only EVM tooling over Base, Ethereum, Polygon, Arbitrum and Optimism, and pure crypto utilities that touch no network.","url":"https://flat-rate-llm.kikoribera03.workers.dev/v1/red/email-check","method":"POST","headers":{},"bodySchema":{"type":"object","required":["email"],"properties":{"email":{"type":"string","description":"The address to check, e.g. someone@example.com."}}},"responseSchema":{"type":"object","properties":{"mx":{"type":"array","items":{"type":"object"}},"spf":{"type":"string"},"email":{"type":"string"},"hasMx":{"type":"boolean"},"domain":{"type":"string"},"reasons":{"type":"array","items":{"type":"object"}},"verdict":{"type":"string"},"disposable":{"type":"boolean"},"dmarcPolicy":{"type":"string"},"roleAccount":{"type":"boolean"},"syntaxValid":{"type":"boolean"},"domainResolves":{"type":"boolean"}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","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":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_55aQx2aypZKzHZgmk05qM","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","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 by checking syntax, MX records, SPF/DMARC policies, disposability, domain resolution, and role-account detection","exampleAgentPrompt":"Can you check whether john.doe@tempmail.com is a valid, deliverable email — specifically whether the domain resolves, has MX records, passes SPF/DMARC, and whether it looks like a disposable or role address?","exampleUseCases":[{"title":"Signup form email screening","prompt":"Before we add this new user to our list, check if the email they signed up with — noreply@guerrillamail.com — is disposable, a role account, or has no real MX records so we can decide whether to reject it."},{"title":"Pre-send deliverability check","prompt":"I'm about to send a marketing campaign to a list that includes user@businessdomain.io — can you verify that the domain resolves, has MX records, and has a DMARC policy before I hit send?"},{"title":"Lead quality validation","prompt":"We just got a sales lead with the email address sales@acme-corp.net — can you tell me if it's syntactically valid, whether the domain actually resolves, and whether it's a generic role account rather than a real person?"}],"resultDescription":"Returns a JSON object with: the original email and parsed domain, a boolean syntaxValid, booleans hasMx and domainResolves, the raw SPF record string, dmarcPolicy string, a disposable boolean indicating throwaway services, a roleAccount boolean for generic addresses like info@ or admin@, an array of MX records with priority and exchange, an array of reasons explaining any issues, and a final verdict string summarizing deliverability.","failureModes":["Missing or malformed email field returns a 400-level error","DNS lookup timeouts for obscure or slow domains may cause delays or partial results","Disposable email database may not cover newly created throwaway domains","Valid-looking but non-existent addresses may pass syntax checks but fail MX resolution","Payment failure or insufficient USDC balance prevents the call from completing"],"whenToPreferThis":"Use this endpoint when you need a comprehensive, multi-signal email validation in a single flat-rate call — covering syntax, DNS/MX resolution, SPF, DMARC, disposability, and role-account detection — without managing API keys or per-character metering. Prefer it over basic regex checks when deliverability and lead quality matter, or over heavier email verification SaaS when you want predictable $0.005 per-call pricing with no subscription.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T18:53:41.725Z","isFirstParty":false}