AgentCall is the phone number API built for AI agents. Every agent eventually hits a wall — SMS verification, 2FA, OTP extraction, and voice calls all require a real number. With AgentCall, provision real SIM-backed numbers in seconds, send/receive SMS, make voice calls, and auto-extract OTPs — all via a clean REST API. Works with Vapi, Bland, Retell, and any agent stack. Free tier available.

The phone number API for AI agents: US and Canada numbers, SMS, OTP extraction, AI voice, and cross-call memory. REST API plus MCP server. Free tier.

Hey Product Hunt! 👋 I built AgentCall because every AI agent I worked with eventually hit the same wall: it needed a real phone number. SMS verification, 2FA/OTP codes, voice calls, a number people could actually reach — and wiring that up through traditional telecom APIs like Twilio was painful and not built for agents. AgentCall is the phone number API designed for AI agents: • Provision real US/Canada numbers in seconds via REST API or MCP • Send/receive SMS and auto-extract OTP codes • AI voice calls (inbound + outbound) in 13 languages, with full transcripts • Cross-call memory — your agent remembers past callers and picks up the thread • Works inside Claude, Cursor, Windsurf, Hermes, and OpenClaw via our hosted MCP server There's a free tier (no card required) so you can try it right away. Would love your feedback — happy to answer any questions in the comments!

AgentCall

Phone Numbers for AI Agents

Phone Numbers for AI Agents

AgentCall

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