{"uid":"cap_zdf8fotkaekKwkg2AyBPu","slug":"percallapi-caller-id-lookup-28e41482","name":"PerCallAPI Caller ID Lookup","description":"Lookup registered caller name (CNAM identity), real-time line status (active vs. inactive), telecom carrier, and line type via Twilio. Provide ?phone=+14157012311.","url":"https://percallapi.com/caller-id?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema"},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.04","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":"$0.04/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.04","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.04","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_lczsavuJqVexMdyaks4JQ","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.04","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Looks up registered caller name (CNAM), real-time line status, telecom carrier, and line type for a phone number via Twilio.","exampleAgentPrompt":"Can you look up the caller ID name, carrier, line type, and whether the number +14157012311 is currently active?","exampleUseCases":[{"title":"Screen unknown inbound callers","prompt":"I keep getting calls from +12125550193 — can you tell me the registered caller name, what carrier it's on, and whether it's a mobile, landline, or VoIP number?"},{"title":"Fraud detection on sign-up","prompt":"A new user just registered with phone number +13105559876 — can you check if it's an active line and whether it's a VoIP or burner number before I approve the account?"},{"title":"Validate contact list before campaign","prompt":"Before we send our SMS campaign, can you check if +18005551234 is an active line and what carrier it's registered to?"}],"resultDescription":"Returns the registered CNAM caller name, real-time line status (active vs. inactive), telecom carrier name, and line type (mobile, landline, or VoIP) for the provided phone number.","failureModes":["Invalid or non-E.164 formatted phone number returns an error","Number not found in CNAM registry returns empty caller name","Twilio carrier lookup unavailable returns a timeout or service error","Non-US numbers may return partial or no CNAM data","Payment failure (x402) blocks the request from being processed"],"whenToPreferThis":"Choose this endpoint when you need a combined CNAM + carrier + line type + active status check in a single real-time call, backed by Twilio's telecom data. Prefer it over carrier-only lookup endpoints when caller name identity matters, or over static WHOIS/number databases when you need live line status.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-01T06:38:07.199Z","isFirstParty":false,"canonicalSlug":"percallapi-caller-id-lookup-28e41482"}