{"uid":"cap_BVjegYkRpzgByAOMQoXNi","slug":"phone-number-intelligence-api-9fff665b","name":"Phone Number Intelligence API","description":"Phone-number intelligence in one call: validity and E.164 normalization, line type (mobile, fixed line, VOIP, toll free, premium rate), country and region, carrier hint, timezones, and a deterministic 0-100 fraud/KYC risk score with a band and reasons. Offline number-plan metadata from Google libphonenumber. Risk indicators only, not a definitive fraud verdict; no live status and no owner identity; the input number is not stored.","url":"https://api.agentstools.dev/phone/intel?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","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","required":["number"],"properties":{"number":{"type":"string","description":"Phone number. E.164 (e.g. +14155552671) or a national number when 'country' is also given."},"region":{"type":"string","description":"Alias of 'country' (ISO-3166 alpha-2)."},"country":{"type":"string","description":"Optional ISO-3166 alpha-2 country code (e.g. US, GB, DE) for national-format input."}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"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":{"p10Cents":"0.5000","medianCents":"0.5000","p90Cents":"0.5000","minCents":"0.5000","maxCents":"0.5000","p95Cents":"0.5000","sampleCount":1,"varies":false,"failureChargeRate":1},"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_KvEtWHZBd1m1fhiH3arXm","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 a phone number, normalizes it to E.164, identifies line type and carrier, and returns a 0-100 fraud/KYC risk score with band and reasons — all offline from libphonenumber metadata.","exampleAgentPrompt":"Can you check the phone number +14155552671 — is it a valid mobile number, what carrier is it on, and what's the fraud risk score for KYC purposes?","exampleUseCases":[{"title":"Validate user signups for fraud","prompt":"When someone signs up, validate their phone number and let me know if it's high-risk or suspicious — I want to flag potential fraudsters before they create an account."},{"title":"Enrich customer records with line type","prompt":"I have a list of customer phone numbers that I need to standardize and classify — can you tell me which ones are mobile, VOIP, or landline so I can route them properly?"},{"title":"Screen incoming support contacts","prompt":"Before our support team calls back a customer, check if their phone number is valid and what the fraud risk looks like — I don't want our agents wasting time on fake or risky numbers."}],"resultDescription":"Returns validity status, E.164 normalized form, line type (mobile, fixed line, VOIP, toll free, premium rate), country and region, carrier hint, timezones, and a 0-100 deterministic fraud/KYC risk score with a risk band (e.g. low/medium/high) and human-readable reasons for the score.","failureModes":["Missing 'number' query parameter returns a 400 error","Unparseable or completely invalid number string returns validation failure or error","National-format number without country code may fail to parse — requires 'country' parameter","Payment not provided or insufficient returns 402 Payment Required","Very unusual number formats may return low-confidence results"],"whenToPreferThis":"Use this endpoint when you need offline, fast, deterministic phone number validation combined with line type classification and a fraud/KYC risk signal in a single call — especially for onboarding flows, fraud screening, or enriching contact records. Prefer this over live carrier lookup APIs when you do not need real-time line status or subscriber identity, and when cost-per-call and privacy (number not stored) matter.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T12:50:37.561Z","isFirstParty":false,"canonicalSlug":"phone-number-intelligence-api-9fff665b"}