{"uid":"cap_lpANECcrCXMXvUHUn1EL4","slug":"kiteendpoints-whatsapp-phone-number-validator-e8a6e55a","name":"KiteEndpoints WhatsApp Phone Number Validator","description":"400+ paid API endpoints. Social media, AI, crypto, finance, weather, ecommerce, tools. Pay per request with USDC on Base chain.","url":"https://kite-endpoints.vercel.app/api/whatsapp-validator3","method":"POST","headers":{},"bodySchema":null,"responseSchema":{"type":"object","example":{"result":{"data":"example response"}},"properties":{"result":{"type":"object","description":"API response data"}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.17","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":"$0.17/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.17","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.17","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_4qFhHSB8AfQi_LBK8qLzU","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.17","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Validates whether a phone number is registered on WhatsApp and returns its status","exampleAgentPrompt":"Can you check if the phone number +1-555-867-5309 is actually registered on WhatsApp before I try to message them?","exampleUseCases":[{"title":"Pre-campaign WhatsApp list scrubbing","prompt":"I have a list of customer phone numbers and I want to know which ones are actually on WhatsApp before I send out a bulk message — can you validate this number first: +44 7911 123456?"},{"title":"CRM contact WhatsApp enrichment","prompt":"Before we add this lead to our WhatsApp outreach sequence, can you verify whether +49 151 23456789 is a real WhatsApp account?"},{"title":"Support bot contact reachability check","prompt":"A customer gave us +91 98765 43210 as their contact number — can you confirm it's registered on WhatsApp so we can route their support ticket there?"}],"resultDescription":"Returns an object indicating whether the submitted phone number is registered and active on WhatsApp, along with any available account metadata such as validity status.","failureModes":["Invalid or malformed phone number format returns an error","Phone number not registered on WhatsApp returns a negative validation result","Rate limiting or payment failure (HTTP 402) if USDC payment not processed","Network timeout if WhatsApp lookup is slow","Missing country code causes validation failure"],"whenToPreferThis":"Use this endpoint when you need to verify WhatsApp registration status of a phone number before attempting to send a message, build a contact list, or qualify leads for WhatsApp-based outreach. Prefer this over manual testing or bulk send attempts when accuracy and cost-efficiency matter for messaging campaigns.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T19:01:49.164Z","isFirstParty":false}