{"uid":"cap_V2Zt2CFB2ffKy1cCTLRoL","slug":"call4me-ai-phone-call-agent-45c230bb","name":"call4me – AI Phone Call Agent","description":"Let AI call for you: call4me phones businesses, books appointments and waits on hold, then patches you in. Works in ChatGPT, Claude Code and Codex.","url":"https://call4.me/api?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"],"type":"string"},"queryParams":{"type":"object","properties":{"amount":{"type":"string"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"mcp":"https://call4.me/mcp","payer":"0x8a1e…","balance":"$12.50","credited":"$10.00","transaction":"0x5f2c…","balance_cents":1250,"credited_cents":1000}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"10","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":"$10/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"10","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"10","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_0uNU5sjTzmEaDl2RvtIkx","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"10","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Credits a call4me account with $10 USDC so the AI can phone a business, wait on hold, book appointments, and patch the user in","exampleAgentPrompt":"Can you use call4me to call my dentist at (555) 234-5678 and book me a cleaning appointment for sometime next Tuesday morning — I'll patch in if they need to confirm anything with me directly.","exampleUseCases":[{"title":"Doctor appointment booking by phone","prompt":"Call my doctor's office at (415) 555-0192 using call4me and book me the earliest available physical exam appointment next week — I'm free mornings, and patch me in if they need to verify my insurance."},{"title":"Restaurant reservation without holding","prompt":"Use call4me to call Chez Marcel at (212) 555-0888 and make a dinner reservation for 4 people this Saturday at 7:30pm under my name — don't make me wait on hold, just have the AI handle it and loop me in to confirm."},{"title":"Service cancellation call","prompt":"I need to cancel my gym membership but I don't want to sit on hold for 45 minutes — can you use call4me to call GoldFit at (800) 555-3300 and handle the cancellation for me, then patch me in if they try to offer a retention deal?"}],"resultDescription":"Returns a JSON object containing the call4me MCP endpoint URL for the AI phone agent, the payer wallet address, updated account balance in cents and formatted USD, the amount credited for this payment, and the blockchain transaction hash confirming the USDC payment.","failureModes":["Insufficient USDC payment — call not credited if payment below $10 threshold","Invalid wallet address — transaction rejected on-chain","Business phone number unreachable or disconnected — call fails silently","Hold times exceeding session limits may drop the call before patch-in","MCP session timeout if user is slow to join after being patched in","Network or blockchain congestion delays transaction confirmation"],"whenToPreferThis":"Choose call4me when a task requires an actual live phone call to a business — such as booking appointments, cancelling services, or handling hold queues — that cannot be accomplished via a web form or API. It is especially valuable when the target business has no online booking system and requires a human (or human-sounding AI) voice call. Prefer it over web scraping or form-fill automations when the only channel is telephone.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-11-02T00:32:48.722Z","isFirstParty":false,"canonicalSlug":"call4me-ai-phone-call-agent-45c230bb"}