{"uid":"cap_5nyHg-uuaYeMKmS5Af5LP","slug":"courser-email-verification-364dc464","name":"Courser Email Verification","description":"Validate an email address without sending mail. POST {\"email\":\"name@example.com\"} to get one verdict — deliverable, undeliverable, disposable, role_address, typo_suspected, or invalid — plus a 0-100 deliverability score. Checks RFC-5322 syntax, live MX records, disposable/throwaway domains, role mailboxes (info@, support@), and typos of common providers (gmial.com -> gmail.com). Returns MX provider, per-check provenance, and a verdict hash. No SMTP probe.","url":"https://tizona-outpost.venusberg.workers.dev/v1/verify-email","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"email":{"type":"string"}}},"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_B18ksKg5GjKe85lWJVEpZ","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":"Validates an email address for deliverability without sending any mail, returning a verdict, score, and per-check provenance.","exampleAgentPrompt":"Can you verify whether john.doe@gmial.com is a real, deliverable email address — without actually sending anything to it — and tell me the deliverability score and verdict?","exampleUseCases":[{"title":"Scrubbing a lead list before outreach","prompt":"I have a lead email address — marcus.henderson@throwam.com — can you check if it's deliverable or if it's a disposable address before I add it to my outreach campaign?"},{"title":"Catching typos in user sign-up","prompt":"A user just signed up with the email sarah.j@gmaill.com — can you verify it and tell me if there's a typo in the domain so I can prompt them to correct it?"},{"title":"Blocking role addresses from mailing list","prompt":"Before I subscribe contact@acmecorp.com to our newsletter, can you check if it's a role mailbox like info@ or support@, and give me a deliverability score?"}],"resultDescription":"Returns a verdict enum (deliverable, undeliverable, disposable, role_address, typo_suspected, or invalid), a 0–100 deliverability score, the detected MX provider, per-check provenance details for syntax/MX/disposable/role/typo checks, and a verdict hash. No email is ever sent during verification.","failureModes":["Invalid JSON body or missing email field returns a 4xx error","Malformed email strings that pass partial syntax checks may still return a verdict","MX lookup failures (DNS timeouts) may result in undeliverable verdict even for valid addresses","Disposable domain list may not cover brand-new throwaway services","No SMTP probe means deliverability is inferred, not confirmed at mailbox level"],"whenToPreferThis":"Choose this endpoint when you need a lightweight, privacy-safe email validation that does not send any probe email. It is ideal for pre-flight checks on user sign-ups, lead lists, or form submissions where you want syntax, MX, disposable-domain, role-address, and typo detection in a single call with per-check provenance and a numeric score. Prefer it over full SMTP-probe services when deliverability inference without side effects is acceptable.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T12:34:02.867Z","isFirstParty":false}