{"uid":"cap_Qh1h3ZIiuG0wrUvC42DTK","slug":"kelam-phone-calls-ai-outbound-call-placer-88051664","name":"Kelam Phone Calls – AI Outbound Call Placer","description":"The cheapest real phone calls for AI agents, in the most realistic human voices. Place an outbound call to accomplish a task and get the outcome + transcript back, or provision your own inbound/outbound voice agent under your wallet. From $0.03 + $0.09/min, billed to the second in USDC. No account, no telephony setup.","url":"https://call.kelam.sh/api/place_call?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"to":{"type":"string","pattern":"^\\+[1-9]\\d{7,14}$"},"task":{"type":"string","maxLength":30000,"minLength":1},"extract":{"type":"array","items":{"type":"object","required":["name","description"],"properties":{"enum":{"type":"array","items":{"type":"string"}},"name":{"type":"string","pattern":"^[a-z][a-z0-9_]*$"},"type":{"enum":["string","number","boolean","enum"],"type":"string"},"description":{"type":"string","minLength":1}},"additionalProperties":false},"maxItems":20},"agent_id":{"type":"string","maxLength":120},"greeting":{"type":"string","maxLength":2000},"language":{"type":"string","maxLength":16}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"2","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":"$2/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"2","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"2","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_7_O4O5wOm-g8fVibhjt3Z","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"2","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Places a real outbound phone call on behalf of an AI agent to accomplish a task, then returns the call outcome and full transcript.","exampleAgentPrompt":"Call +1-212-555-0198 and ask if they have a table available for 4 people this Saturday at 7pm — find out if they take reservations and what the wait time usually is, and give me back what they said.","exampleUseCases":[{"title":"Restaurant reservation availability check","prompt":"Call +1-415-555-0147 and ask if they have any availability for a party of 2 this Friday at 8pm, and whether they have outdoor seating — then tell me exactly what they said."},{"title":"Business hours and service inquiry","prompt":"Can you call +1-310-555-0082 and find out what their hours are on Sundays and whether they offer same-day appointments? Extract the hours and whether same-day is available."},{"title":"Automated lead qualification call","prompt":"Place a call to +1-646-555-0231, introduce yourself as calling on behalf of Acme Realty, and ask if they're still interested in scheduling a property viewing — find out their preferred day and time and whether they've already spoken to an agent."}],"resultDescription":"The agent receives the call outcome (success/failure), a full text transcript of the conversation, and any structured data fields that were requested via the 'extract' parameter (e.g. boolean flags, enumerated answers, numeric values, or free-text strings extracted from what the other party said).","failureModes":["Invalid or unreachable phone number — call fails to connect","Task description too vague — agent cannot accomplish the goal","Call answered by voicemail or IVR — task may be incomplete","Extraction fields not populated if not discussed during call","Rate limits or payment failure in USDC — call not placed","Language mismatch causing miscommunication"],"whenToPreferThis":"Choose this endpoint when an AI agent needs to make a real phone call to a human or business — e.g. to gather information, confirm availability, or complete a verbal task — and you want the outcome and transcript returned programmatically. It is ideal for no-setup, pay-per-use voice automation without managing telephony infrastructure, and is particularly suited for one-off agentic tasks billed to the second in USDC.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-11T06:35:05.981Z","isFirstParty":false,"canonicalSlug":"kelam-phone-calls-ai-outbound-call-placer-88051664"}