{"uid":"cap_UUWVxzNJlSQlIM7aDlDKP","slug":"email-quick-syntax-disposable-check-36002080","name":"Email Quick Syntax & Disposable Check","description":"Invoice-to-JSON, on-chain tools (transaction explainer + payment check, wallet profile, contract ABI, ERC-20 token risk), company contacts and web-to-RAG for AI agents. Pay per call with x402 (USDC on Base). No signup, no API key.","url":"https://freetier-agent-api.pages.dev/api/email-verify-quick?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":"email address"}}}}},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"role":true,"email":"info@mailinator.com","verdict":"risky","syntax_ok":true,"disposable":true}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.0025","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":"$0.0025/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0025","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0025","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_Y7GyQxeZvARtl2VK8flm9","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.0025","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Offline email validation: RFC syntax check, disposable-domain flag (~9,900 domains), role address and free-mail flags — no DNS or MX lookup, fastest possible check.","exampleAgentPrompt":"Can you quickly check if info@mailinator.com is a valid email — is it disposable, a role address, or from a free-mail provider? Just a fast offline check, no DNS needed.","exampleUseCases":[{"title":"Signup form email screening","prompt":"Before I accept this registration, can you check if the email 'user123@guerrillamail.com' is disposable, a role address, or has a syntax problem? I just need a fast check, no DNS."},{"title":"Lead list quality filter","prompt":"I have a lead email 'sales@tempmail.org' — can you tell me if it's from a disposable domain or is a role-based address so I know whether to trust it?"},{"title":"CRM data hygiene audit","prompt":"Can you validate the email 'noreply@gmail.com' — is the syntax valid, is it a disposable domain, and is it flagged as a role address or free-mail provider?"}],"resultDescription":"Returns a JSON object with: email (echoed back), syntax_ok (boolean), disposable (boolean, based on ~9,900 known disposable domains), role (boolean indicating role-based address like info@ or support@), and verdict (string such as 'risky' or 'ok') — all determined offline without DNS or MX lookups.","failureModes":["Missing email query parameter returns an error","Malformed or missing input schema results in 400-level response","Disposable domain list may not cover newly created throwaway domains","No MX/DNS check means deliverability is not confirmed — use email-verify endpoint for that","Free-mail flag coverage depends on built-in list completeness"],"whenToPreferThis":"Choose this endpoint when you need the fastest possible email check and do not require DNS or MX record verification. It is ideal for real-time signup validation, bulk lead list screening, or any scenario where latency matters and offline heuristics (syntax, disposable domain list, role/free-mail flags) are sufficient. Use the sibling email-verify endpoint instead when deliverability confirmation via MX lookup is required.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-11-01T06:54:47.035Z","isFirstParty":false,"canonicalSlug":"email-quick-syntax-disposable-check-36002080"}