{"uid":"cap_BZ7D5Li8Tn1ktIE1Kht7g","slug":"kiteendpoints-ai-whatsapp-phone-number-validator-2091d656","name":"KiteEndpoints.ai - 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-hub-v2.vercel.app/api/whatsapp-validator","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":"0.12","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":"$0.12/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.12","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.12","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_iDRFIWJd-7l_TflxU7jHV","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.12","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 has an active WhatsApp account","exampleAgentPrompt":"Can you check if the phone number +14155552671 is registered and active on WhatsApp before I send them a message?","exampleUseCases":[{"title":"Verify customer contacts before WhatsApp campaign","prompt":"I'm about to launch a WhatsApp marketing campaign to our customer list. Can you quickly check which of these phone numbers actually have active WhatsApp accounts so we don't waste messages on invalid contacts?"},{"title":"Validate international leads for messaging","prompt":"We just got a batch of leads from different countries for our support team. Before we start adding them to our WhatsApp outreach workflow, can you verify that these phone numbers are actually registered on WhatsApp?"},{"title":"Check prospect availability on WhatsApp","prompt":"I'm preparing to reach out to some prospects for a sales call. Can you validate that their phone numbers have active WhatsApp accounts so I know the best way to contact them?"}],"resultDescription":"Returns a result object indicating whether the given phone number has an active WhatsApp account, along with associated validation data about the number's status.","failureModes":["Invalid phone number format returns error","Number not found on WhatsApp returns negative validation","Payment failure (insufficient USDC) blocks the request","Malformed request body returns 400-level error","External WhatsApp API downtime may cause timeout or 503"],"whenToPreferThis":"Use this endpoint when you need to verify whether a phone number is reachable via WhatsApp before initiating messaging campaigns, customer outreach, or adding contacts to a WhatsApp-based communication flow. Useful for pre-validating contact lists to reduce failed message delivery rates.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T18:32:52.003Z","isFirstParty":false}