{"uid":"cap_IbQT7NT5bIToMEo6Q_7s1","slug":"klymax402-phone-validation-api-8bf0e4f7","name":"klymax402 Phone Validation 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 $0.003/call.","url":"https://klymax402.com/api/phone-validation/api/validate","method":"GET","headers":{},"bodySchema":{"type":"object","$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":["phone"],"properties":{"phone":{"type":"string","description":"Phone number to validate (e.g. +33612345678, +14155552671, 0033612345678)"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"e164":"example","phone":"example","valid":true,"country":{},"numberType":"example","smsCapable":true,"nationalNumber":"example"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.008","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":"$0.008/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.008","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.008","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_fSCxbyRzKdkUXBncNcdTR","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.008","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Validates a phone number and returns its E.164 format, country info, number type, and SMS capability","exampleAgentPrompt":"Can you check if +14155552671 is a valid phone number and tell me whether it can receive SMS messages?","exampleUseCases":[{"title":"Pre-send SMS validation","prompt":"Before we send that marketing SMS campaign, check if +33612345678 is a valid number and can actually receive SMS messages."},{"title":"User registration phone check","prompt":"A user just signed up with the phone number +447911123456 — can you verify it's a real, valid number and tell me what country it's from?"},{"title":"Normalize phone number format","prompt":"I have the number 0033612345678 and I need it converted to E.164 format — can you validate and normalize it for me?"}],"resultDescription":"Returns a JSON object with: whether the phone number is valid (boolean), the E.164-formatted number, the national number, country details, the number type (mobile/landline/etc.), and whether the number is SMS-capable.","failureModes":["Missing or malformed phone parameter returns an error","Unrecognized or completely invalid phone string may return valid:false with limited detail","Payment failure (402) if USDC balance is insufficient","Rate limiting or network timeout from the aggregator platform"],"whenToPreferThis":"Use this endpoint when you need a quick, pay-per-call phone validation with no API key setup, especially within an agent workflow that already uses the klymax402 multi-API MCP platform. Ideal for one-off checks or low-volume validation where signing up for a dedicated phone validation service is overkill.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T12:46:42.887Z","isFirstParty":false}