{"uid":"cap_abwHmYCPNgau1yeNC2TbQ","slug":"email-domain-enrichment-api-6a9a80c4","name":"Email Domain Enrichment API","description":"Free need-to-tool routing plus pay-per-call npm docs and TypeScript API signatures, npm breaking-change diffs, JavaScript-rendered browser snapshots and deterministic coding-agent checks via AgentCash/x402.","url":"https://x402-canary.nicolas-x402-16f380a7.workers.dev/v1/email/domain-enrich","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"email":{"type":"string"}}},"responseSchema":{"type":"json","example":{"data":{"domain":"example.com","has_mx":true,"spf_present":true,"dmarc_present":true},"meta":{"engine":"domain-enrich"}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.02","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":"$0.02/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_ehFVQJmGG__7c99xZtvNZ","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Given an email address, returns DNS-level domain health signals including MX record presence, SPF policy, and DMARC configuration.","exampleAgentPrompt":"Can you enrich the email address john@acmecorp.com and tell me whether its domain has MX records, SPF, and DMARC configured?","exampleUseCases":[{"title":"Pre-send deliverability check","prompt":"Before we send this campaign, check whether newsletter@startup.io has a valid MX record and SPF set up so I know if mail to that domain will actually land."},{"title":"Lead qualification email hygiene","prompt":"I have a new lead with email contact@prospectbiz.com — can you check if their domain has MX records, SPF, and DMARC so I can judge how legitimate this address is?"},{"title":"Vendor email security audit","prompt":"We're onboarding a new vendor using billing@vendorco.net — please check if that domain has DMARC and SPF configured so I know if their email setup meets our security requirements."}],"resultDescription":"Returns a JSON object containing the extracted domain from the email, a boolean indicating whether MX records exist, a boolean for SPF record presence, and a boolean for DMARC record presence, along with an engine metadata field identifying the enrichment source.","failureModes":["Invalid or malformed email input returns an error or empty result","Domain does not exist — all booleans may return false","DNS lookup timeout may cause delayed or failed response","Missing email field in request body causes a validation error"],"whenToPreferThis":"Use this endpoint when you need lightweight, DNS-level email domain health signals (MX, SPF, DMARC) without a full email verification ping. It is ideal for lead scoring, form submission hygiene checks, or vendor onboarding workflows where you need to assess domain mail infrastructure quickly and cheaply at $0.02 per call.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T12:54:03.224Z","isFirstParty":false}