Stemvo

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Stemvo is a platform for AI voice agents. A business describes what it does in plain words, and its agent answers calls the same day: it answers questions, takes messages and booking requests in Google Calendar or Cal.com, and leaves a summary of every call in the dashboard, by webhook or by email. One price, €0.09 a minute excl. VAT for a standard-size agent, with GPT-5.1, speech recognition and voice included. No monthly fee, no setup fee, €5 free to start. Ten languages. Recordings and transcripts are stored on servers in Germany, and every agent says it is an AI. Agencies can resell it under their own brand; developers use the API.