{"uid":"cap_5Fa53zrMs5Ho54ZtdIANF","slug":"proofwire-email-delivery-verification-8ad47b1e","name":"Proofwire Email Delivery Verification","description":"Close the loop on your own work with one paid call that returns a verdict plus Ed25519-signed, falsifiable evidence (verify signatures with GET /v1/keys). GET /v1/verify/http checks a URL is alive (redirect chain, TLS, latency, body hash). GET /v1/verify/dns resolves records and parses SPF/DMARC/DKIM. Email: POST /v1/verify/email/inbox issues a seed address; send mail to it, then GET /v1/verify/email?inbox=&token= returns delivery plus SPF/DKIM/DMARC alignment and raw headers (polls inside the paid window are free). Webhooks: POST /v1/verify/webhook arms a tripwire URL; register it upstream, then poll GET /v1/verify/webhook/{id}?token= for free. GET /v1/verify/page renders a page in a real browser, asserts a selector/text, and returns a screenshot URL. Failed work is never settled.","url":"https://verify.reversecaptcha.fun/v1/verify/email?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"const":"http"},"method":{"const":"GET"},"queryParams":{"type":"object","required":["inbox","token"],"properties":{"from":{"type":"string"},"wait":{"type":"string"},"inbox":{"type":"string"},"token":{"type":"string"},"window":{"type":"string"},"match_subject":{"type":"string"}}}}},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"verdict":"delivered","evidence":{"message":{"raw_headers":"Received: ...","received_at":"2026-01-01T00:00:00Z","authentication":{"spf":{"result":"pass"},"dkim":[{"result":"pass","aligned":true}],"dmarc":{"result":"pass"}}}}}},"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_HDobQu3hSP5rjNwx8GniK","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":"Polls a Proofwire seed inbox to confirm email delivery and returns SPF/DKIM/DMARC authentication alignment results with Ed25519-signed evidence","exampleAgentPrompt":"Check whether the email I just sent from noreply@acme.com was delivered to the Proofwire seed inbox — use inbox ID 'inbox_abc123' and token 'tok_xyz789' — and tell me if SPF, DKIM, and DMARC all passed.","exampleUseCases":[{"title":"Transactional email delivery audit","prompt":"I just sent a password-reset email from my app — can you check Proofwire inbox 'inbox_reset42' with token 'tok_abc001' to confirm it was delivered and that DKIM alignment passed?"},{"title":"New domain email authentication check","prompt":"I've set up SPF, DKIM, and DMARC on my new domain sendgrid-test.io and fired off a test message — poll Proofwire inbox 'inbox_dom99' with token 'tok_dom99sec' and tell me the full authentication verdict including raw headers."},{"title":"Email marketing platform validation","prompt":"My marketing platform claims it sends authenticated mail — I triggered a campaign email just now, please poll Proofwire inbox 'inbox_mkt77' with token 'tok_mkt77key' and confirm DMARC passed and DKIM was aligned."}],"resultDescription":"Returns a verdict field ('delivered' or failure), the raw email headers including Received lines, per-mechanism authentication results (SPF pass/fail, DKIM result and alignment flag, DMARC result), the timestamp of delivery, and the entire evidence bundle signed with an Ed25519 key verifiable via GET /v1/keys.","failureModes":["Email not yet delivered within polling window — verdict may be pending or undelivered","Invalid or expired token returns 401/403","Inbox ID not found returns 404","SPF/DKIM/DMARC failures reflected in verdict but not an API error — verdict will indicate failure rather than delivery","Payment not settled (x402) — call blocked before execution","Rate limiting or window expiry if polled outside the paid window"],"whenToPreferThis":"Choose this endpoint when you need cryptographically signed proof that an email was actually delivered and authenticated — not just that an SMTP server accepted it. It is the right choice when you want SPF/DKIM/DMARC alignment details bundled with falsifiable evidence, especially in agentic pipelines where 'closing the loop' on sent email matters. Prefer it over SMTP delivery logs or open-tracking pixels when tamper-proof audit trails are required.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T12:30:16.381Z","isFirstParty":false,"canonicalSlug":"proofwire-email-delivery-verification-8ad47b1e"}