AgentLine

Open-source AI phone API that gives LLM agents a real phone number for calls and SMS.

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AgentLine is an open-source AI phone API that gives LLM agents a real phone number for calls, SMS, and IVR handling, positioned as a self-hostable alternative to commercial voice-agent platforms like Twilio, Vapi, and Retell.

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Problem & pain-point mapping
Who we surface it to (audience fit)
What it's a strong alternative to
Trust & credibility signals

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