{"uid":"cap_l5MGrP5ujeRMkUqatIngH","slug":"klymax402-batch-email-verification-api-315838c4","name":"klymax402 Batch Email Verification API","description":"One MCP endpoint gives your AI agent access to 100 APIs -- crypto, DeFi, web, AI, finance and utilities. No API keys, USDC on Base from $0.003/call.","url":"https://klymax402.com/api/email-verification/api/verify/batch","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"emails":{"type":"array","items":{"type":"string"},"description":"Array of email addresses (max 100)"}}},"responseSchema":{"type":"json","example":{"count":1,"results":[],"valid_count":1,"invalid_count":1}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.03","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":"$0.03/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.03","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.03","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_PMQiGFnkIeT6l46qBDKAT","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.03","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Verifies up to 100 email addresses in a single batch call, returning validity counts and per-email results","exampleAgentPrompt":"Can you verify these email addresses and tell me which ones are valid: user@example.com, bad-email@, test@domain.org, and notanemail? I need to know how many are valid before I send my campaign.","exampleUseCases":[{"title":"Pre-send mailing list cleanup","prompt":"I have a list of 50 subscriber emails I collected from our signup form — can you check which ones are actually valid before I send the newsletter? Here they are: alice@example.com, bob@@broken.com, carol@test.org..."},{"title":"CRM data quality audit","prompt":"We just imported a batch of leads into our CRM and I need to know which email addresses are garbage. Can you validate all these emails and give me a count of how many are valid vs invalid?"},{"title":"User registration fraud filter","prompt":"Before we activate these new accounts, can you batch-verify the email addresses they signed up with and flag any invalid ones so we can block them from proceeding?"}],"resultDescription":"Returns a JSON object with a total count of submitted emails, a valid_count, an invalid_count, and a results array containing per-email verification outcomes indicating whether each address is valid or invalid.","failureModes":["Array exceeds 100 email limit — may return an error or silently truncate","Malformed input array — missing or incorrectly typed emails field returns an error","Payment failure via x402 — call not processed if USDC balance is insufficient","Network timeout for very large batches near the 100-email limit","Disposable or catch-all domains may not be accurately classified"],"whenToPreferThis":"Choose this endpoint when you need to validate multiple email addresses in one round trip (up to 100), paying only $0.03 USDC per batch call. It is ideal for bulk list hygiene, pre-send validation, or CRM cleanup scenarios where per-email API calls would be costly or slow. Prefer this over single-email validators when processing lists of more than a few addresses.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T18:43:18.376Z","isFirstParty":false}