{"uid":"cap_QPYlmFFpuZqQD08NLrWJx","slug":"paywallwatch-email-verifier-609e1fd7","name":"PaywallWatch Email Verifier","description":"Use when an agent has an email address from a form, a scrape or a CRM and must decide whether it is worth sending to. Screens the address: syntax, DNS mail exchanger, disposable domain, role account, free provider and common typos. It does not verify that the mailbox exists. A DNS failure answers 503 and is not charged.","url":"https://api.paywallwatch.com/v1/email/verify?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":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["email"],"properties":{"email":{"type":"string","description":"The address to screen"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.003","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":"$0.003/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_3MTDdfN8NzUFy3SmgEh3T","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.003","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Screens an email address for syntax errors, DNS/MX validity, disposable domains, role accounts, free providers, and common typos — without verifying mailbox existence.","exampleAgentPrompt":"Before we add this lead to the campaign, can you screen the email address john.doe@gmial.com — check if the syntax is right, the domain has MX records, and whether it's disposable or a role account?","exampleUseCases":[{"title":"CRM lead quality gating","prompt":"We scraped a batch of leads and I want to filter out junk before importing — can you check whether contact@tempmail.org is a disposable domain, has valid DNS mail records, and passes syntax checks?"},{"title":"Signup form abuse prevention","prompt":"Someone just signed up with noreply@company.com — can you tell me if that's a role account and whether it's worth sending a welcome email to?"},{"title":"Outbound campaign pre-screening","prompt":"I have the email sales@acme.corp from a web scrape — can you validate it for syntax, check that the domain actually has MX records, and flag it if it looks like a free provider or a throwaway address?"}],"resultDescription":"Returns a structured screening result indicating whether the email passes syntax checks, whether the domain has valid MX records, whether the domain is a known disposable provider, whether the address is a role account (e.g. info@, admin@), whether it is from a free provider, and whether there are likely typos. Does not confirm that the mailbox actually exists. DNS failures return a 503 and are not billed.","failureModes":["DNS lookup failure returns HTTP 503 and is not charged","Invalid or missing email query parameter returns a 4xx error","Temporarily unresolvable domains may return 503","Malformed email strings may be flagged at syntax stage before DNS is attempted"],"whenToPreferThis":"Use this endpoint when you have an email address from a form submission, web scrape, or CRM and need to determine whether it is worth attempting delivery — particularly when you want to catch disposable domains, role accounts, free providers, and typos cheaply before committing to an outbound send. Prefer this over full mailbox-existence verification when you want a fast, inexpensive pre-filter that does not trigger SMTP handshakes or risk sender reputation issues.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-22T18:38:44.436Z","isFirstParty":false,"canonicalSlug":"paywallwatch-email-verifier-609e1fd7"}