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CosVoice

CosVoice gives your AI Agent (Grok Bot, Claude, ChatGPT, Cursor, or Meta Muse) a real US phone number and email. Its API places and answers calls, sends texts and email, and returns written call summaries. OpenAPI: https://cosvoice.com/openapi.json. Remote MCP: https://cosvoice.com/mcp. 7-day free trial; from $29/mo.

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CosVoice
CosVoice preview interface