{"uid":"cap_MNCJxtOpYsSwYpbjkroaG","slug":"24k-labs-email-validator-eb61ca74","name":"24K Labs Email Validator","description":"RFC-5322-ish syntax check plus disposable / role-account / free-provider flags.","url":"https://api.24klabs.ai/api/v1/email-validate","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"email":{"type":"string"}}},"responseSchema":{"type":"json","example":{"valid":true}},"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_IH7qxdeZXxIpmWOGcK3fH","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":"Validates an email address for RFC-5322 syntax and flags it as disposable, role-account, or free-provider","exampleAgentPrompt":"Can you check whether 'support@mailinator.com' is a valid email address, and tell me if it's disposable, a role account, or from a free provider?","exampleUseCases":[{"title":"Block throwaway signups at registration","prompt":"Before I save this new user's email 'tempuser123@guerrillamail.com', check if it's disposable or a free provider so I can decide whether to reject it."},{"title":"Scrub a lead list for role accounts","prompt":"I have a sales lead that submitted 'info@acmecorp.com' — can you tell me if that's a role-based email address and whether the syntax is valid?"},{"title":"Pre-send validation for email campaign","prompt":"I'm about to send a campaign to 'noreply@bigcompany.org' — validate whether it's syntactically correct and flag it if it's a role account or from a free email provider."}],"resultDescription":"Returns a structured result indicating whether the email passes RFC-5322 syntax rules, and boolean flags for: disposable/temporary provider, role-account prefix (e.g. info@, admin@, support@), and free email provider (e.g. Gmail, Yahoo).","failureModes":["Malformed or missing email input returns a validation error","Edge-case RFC-5322 syntax may be misclassified as valid or invalid","Disposable provider list may not include the newest throwaway domains","Free-provider and role-account flags rely on heuristic lists that may have gaps","Network timeout or service unavailability returns an HTTP error"],"whenToPreferThis":"Use this endpoint when you need a fast, lightweight email quality check at the point of user input or data ingestion — especially to catch throwaway addresses, role accounts, or free-provider emails before committing them to a database or sending a message. Prefer this over a full email deliverability/SMTP-ping check when you want a low-latency, syntax-plus-classification signal without sending a verification email.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T06:56:51.755Z","isFirstParty":false}