{"uid":"cap_xZ1mm7rFbjyaNr4EVPV1O","slug":"sindri-email-validation-9a303f2b","name":"Sindri Email Validation","description":"Email validation API. Checks whether a string is a syntactically valid email address using the same production-grade validation library trusted across the Node.js ecosystem, catching edge cases a quick regex misses. Returns true or false.","url":"https://ppu43fkyhimq5fiqpmo42eh5ri0yypid.lambda-url.us-east-1.on.aws/isEmail","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"value":{"type":"string","description":"The string to validate as an email address."}}},"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_uNi6TIXb1ea--GOB5DyyH","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":"Validates whether a given string is a syntactically valid email address using a production-grade Node.js validation library, returning true or false.","exampleAgentPrompt":"Can you check whether 'john.doe+tag@sub.example.co.uk' is a syntactically valid email address?","exampleUseCases":[{"title":"User registration form validation","prompt":"Before I save this new user to the database, can you verify that 'alice@company.org' is actually a valid email address?"},{"title":"Bulk import data quality check","prompt":"I have a customer record with the email 'not-an-email@@broken' — can you confirm whether that's a valid email format so I know whether to reject it?"},{"title":"Chatbot lead capture validation","prompt":"A user just typed 'bob.smith@' into our lead form — can you check if that's a properly formatted email before we try to send them a confirmation?"}],"resultDescription":"A boolean value — true if the input string is a syntactically valid email address, false if it is not. No additional metadata or error details are returned beyond the pass/fail verdict.","failureModes":["Missing 'value' field in request body returns an error or undefined result","Non-string input may cause unexpected behavior","Network timeout on Lambda cold start","Payment failure (402) if USDC balance is insufficient","Validation only checks syntax, not whether the mailbox actually exists or is deliverable"],"whenToPreferThis":"Use this endpoint when you need production-grade email syntax validation that catches edge cases a simple regex would miss, especially in Node.js-compatible pipelines or when you want a lightweight, single-purpose microservice without pulling in a full validation library. It is not a substitute for email deliverability or existence checks.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T12:34:07.345Z","isFirstParty":false}