{"uid":"cap_ukTi7eK4bhGDUlXS-IZrk","slug":"email-address-validation-check-b6d94e3d","name":"Email Address Validation Check","description":"Deterministic B2A/A2A/MCP/x402/MPP/L402 execution and intelligence node at https://mcp-gateway.agentdiet.dev settling in USDC on Base.","url":"https://mcp-gateway.agentdiet.dev/v1/email-check?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","POST"],"type":"string"},"queryParams":{"type":"object","properties":{"email":{"type":"string"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"data":{},"status":"ok","roi_proof":{"compression_ratio_pct":91.4}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","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":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_Kkw-dYASCPMbdq7WihIj_","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Validates and checks an email address, returning structured data about its validity or deliverability.","exampleAgentPrompt":"Can you check whether the email address john.doe@example.com is valid and actually deliverable before I add it to my mailing list?","exampleUseCases":[{"title":"Pre-send email list hygiene","prompt":"Before I run this email campaign, can you verify that user@company.com is a real, deliverable address so I don't waste sends on bad contacts?"},{"title":"User registration form validation","prompt":"Someone just signed up with the email fake123@throwaway.io — can you check if that's a legitimate address before I create their account?"},{"title":"CRM contact data cleanup","prompt":"I have a contact in my CRM with email info@oldcorp.net — can you validate whether that address is still active and reachable?"}],"resultDescription":"Returns a JSON object with a 'status' field indicating success, a 'data' object containing email check results, and an 'roi_proof' object showing compression ratio metrics. The core validation result about the email address is nested in the 'data' field.","failureModes":["Missing or malformed 'email' query parameter returns an error","Invalid email format may return a negative validation result","Payment failure (402) if USDC balance is insufficient","Timeout or upstream service unavailability returns a non-OK status","Querying a non-existent or unreachable domain may return inconclusive results"],"whenToPreferThis":"Choose this endpoint when you need a quick, pay-per-call email validation check via a blockchain-settled micro-payment (USDC on Base) without setting up a subscription. It is well-suited for agents operating in x402/MCP payment ecosystems that need to validate individual email addresses on demand at $0.005 per check.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-22T12:44:07.080Z","isFirstParty":false,"canonicalSlug":"email-address-validation-check-b6d94e3d"}