{"uid":"cap__GE0TSJ5m16CG8j3Y2kn6","slug":"email-syntax-and-domain-structure-validator-cbc9377c","name":"Email Syntax and Domain Structure Validator","description":"Email structure check for Email operations: Check syntax and domain formatting only; it does not test whether a mailbox exists. DNS data only; does not send email or verify that an inbox exists.","url":"https://market.datapackvibe.com/x402/demand-domain-email-structure-check-email-operations?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"email":{"type":"string","default":"user@example.com","description":"Email address to inspect."}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_s2vTqsccKR28c5a3WIVHE","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Checks whether an email address has valid syntax and domain formatting without sending email or verifying mailbox existence.","exampleAgentPrompt":"Can you check if 'jane.doe@example-company.com' has valid email syntax and proper domain formatting — just the structure, not whether the inbox actually exists?","exampleUseCases":[{"title":"Form input validation before signup","prompt":"Before we store this new user registration, can you check that 'john_smith@mycompany.org' is a properly structured email address with valid syntax and domain format?"},{"title":"Bulk email list pre-screening","prompt":"I've got a list of email addresses from an import and I want to flag any that have broken syntax or malformed domains — can you start by checking 'bad-email@.nodomain' to see what the structure check returns?"},{"title":"Data pipeline quality gate","prompt":"We're ingesting contact records from a third-party source. Can you validate that 'contact@sub.domain.co.uk' has correct email structure and domain formatting before we pass it downstream?"}],"resultDescription":"Returns a structural analysis of the email address indicating whether the syntax (local part, @ symbol, domain) is correctly formed and whether the domain portion follows valid formatting rules. Does not confirm mailbox existence or perform DNS MX record lookups to verify deliverability.","failureModes":["Malformed or missing email field in request body returns a validation error","Completely absent input may result in a 400 bad request","Edge-case international or Unicode email addresses may produce unexpected results","Does not detect disposable or temporary email providers","Cannot confirm whether the domain actually accepts mail"],"whenToPreferThis":"Choose this endpoint when you need a fast, lightweight check that an email string is structurally valid before storing it, sending to it, or passing it to another system — and you do not need to confirm deliverability or mailbox existence. Ideal for form validation, data pipeline quality gates, and pre-filtering obviously malformed addresses at low cost ($0.01/call).","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T12:43:43.334Z","isFirstParty":false,"canonicalSlug":"email-syntax-and-domain-structure-validator-cbc9377c"}