{"uid":"cap_ulnOedAFvtxuX6U3U7gGz","slug":"blockrun-voice-call-ai-agent-phone-caller-e57098fe","name":"BlockRun Voice Call — AI Agent Phone Caller","description":"Pay for the outcome. One endpoint for every model, tool and data source an agent needs — each call priced before it runs, at the best value per dollar. 103 models and 100 data and tool APIs.","url":"https://blockrun.ai/api/v1/voice/call","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"to":{"type":"string","description":"Destination phone number (E.164)."},"task":{"type":"string","description":"What the AI agent should do on the call."}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.54","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","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":"$0.54/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.541","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.541","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_tsrQoxU-DNj1o8b01ulni","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.541","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Places an AI-driven outbound phone call to a specified number, executing a defined task on behalf of the agent, settled in USDC per call.","exampleAgentPrompt":"Call +1-415-555-0198 and ask them to confirm our reservation for tomorrow at 7pm under the name Johnson — make the call right now.","exampleUseCases":null,"resultDescription":"The agent receives a response indicating whether the outbound AI phone call was placed and what the AI agent accomplished during the call, including any information gathered or confirmations obtained.","failureModes":["Invalid E.164 phone number format — call cannot be routed","Insufficient USDC balance — payment fails, call not placed","Ambiguous or malformed task description — AI agent unable to execute call objective","Destination number unreachable or busy — call fails mid-execution","Payment settlement failure on Base or Solana — call rejected before connection"],"whenToPreferThis":"Choose this endpoint when you need an AI agent to make a real outbound phone call to complete a task — such as booking appointments, gathering information, or delivering a message — and want pay-per-call USDC billing with no API key setup. Prefer this over SMS or email endpoints when voice interaction is required.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T09:53:22.788Z","isFirstParty":false}