{"uid":"cap_UYjNZ9rnp8ow1cInmJSOQ","slug":"x402-web-tools-email-domain-check-529efe4c","name":"x402 Web Tools – Email Domain Check","description":"Pay-per-call web tools for AI agents. No API keys: pay per request in USDC on Base via x402.","url":"https://x402-web-tools.onrender.com/api/email-domain-check?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["domain"],"properties":{"domain":{"type":"string","description":"Domain or full email address"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"domain":"stripe.com","provider":"Google","disposable":false,"dmarcPolicy":"reject","canReceiveEmail":true,"deliverabilityScore":100}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","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":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_bIVQecWXe2lVOUpZQoIDV","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Checks whether a domain or email address can receive email, identifies the mail provider, and returns deliverability signals including DMARC policy and disposable-address status.","exampleAgentPrompt":"Can you check if the domain 'acme.io' can actually receive email, whether it's a disposable address domain, and what its DMARC policy is?","exampleUseCases":[{"title":"Pre-send campaign domain validation","prompt":"Before I send out this marketing email batch, check whether 'tempmail.com' is a disposable domain and if it can receive email — I want to clean my list."},{"title":"New user signup fraud check","prompt":"A user just signed up with an address at 'guerrillamail.com' — can you tell me if that's a throwaway/disposable email domain and what its deliverability score is?"},{"title":"B2B lead enrichment","prompt":"I've got a lead from someone at 'hubspot.com' — can you look up who their email provider is, confirm the domain can receive email, and tell me their DMARC policy?"}],"resultDescription":"Returns a JSON object with the domain name, identified email provider (e.g. Google, Microsoft), a boolean flag indicating if the domain can receive email, whether it is a disposable/throwaway domain, the DMARC policy string (e.g. 'reject', 'quarantine', 'none'), and a numeric deliverability score from 0 to 100.","failureModes":["Invalid or malformed domain/email input returns an error response","Domain does not exist in DNS — canReceiveEmail returns false with low deliverability score","DMARC record absent — dmarcPolicy may be null or 'none'","Payment failure via x402 results in HTTP 402 and no data returned","Rate limits or upstream DNS timeouts may cause delayed or missing responses"],"whenToPreferThis":"Choose this endpoint when you need quick, pay-per-use email domain validation without managing API keys or subscriptions. It is ideal for single-domain lookups during signup flows, lead enrichment pipelines, or pre-send email list hygiene checks where you want provider identification, disposable-address detection, and DMARC policy all in one call.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-18T18:31:58.837Z","isFirstParty":false,"canonicalSlug":"x402-web-tools-email-domain-check-529efe4c"}