{"uid":"cap_EamjBHLHd9Z4rOz_Ia51k","slug":"orthogonal-email-validation-bounce-detection-0adea65a","name":"Orthogonal Email Validation (Bounce Detection)","description":"Checks if a given email is likely to bounce using a waterfall of strategies. Works for catch-all email addresses, which are increasingly common yet hard for other APIs to validate.","url":"https://x402.orthogonal.com/fiber/v1/validate-email/single","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"email":{"type":"string","description":"The email to validate"}}},"responseSchema":null,"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_hUHZ8p6vyp_aP7LTebL7W","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":"Checks whether a given email address is likely to bounce, using a waterfall of strategies including catch-all address handling.","exampleAgentPrompt":"Can you check if john.doe@acmecorp.com is likely to bounce before I send them an outreach email? I need to know if it's a real, deliverable address, especially since their domain might be catch-all.","exampleUseCases":[{"title":"Pre-campaign email list scrubbing","prompt":"I have a prospect email address, sarah.jones@bigcorp.com — can you check if it's likely to bounce before I add it to my outreach campaign? Their domain might be catch-all."},{"title":"New user signup email verification","prompt":"A user just signed up with the email mike.smith@startupxyz.io — can you verify whether that address is actually deliverable before we send their welcome email?"},{"title":"CRM contact data quality check","prompt":"I want to make sure the email address we have on file for our lead, linda.wu@globalfirm.com, is valid and won't bounce — can you run a deliverability check on it?"}],"resultDescription":"Returns a result indicating whether the given email is likely to bounce, including handling for catch-all domains where traditional validation falls short. Typically includes a deliverability verdict or bounce likelihood assessment for the provided address.","failureModes":["Invalid or malformed email address returns an error or low-confidence result","Network timeouts if upstream mail server checks are slow","Catch-all domains may return an inconclusive result if waterfall strategies are exhausted","Payment failure or insufficient USDC balance prevents the call from completing","Temporary mail server unavailability may reduce accuracy of result"],"whenToPreferThis":"Choose this endpoint when you need to validate email deliverability beyond simple format checking — especially for catch-all domains (e.g. corporate domains that accept all addresses) where standard MX/SMTP checks give false positives. Ideal for pre-send campaign scrubbing, signup validation, or CRM data quality. Prefer over basic regex/format validators when bounce prevention is the primary goal.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T00:57:17.015Z","isFirstParty":false}