Dasha

Dasha is a platform for developers building voice and text AI agents that handle phone calls, WebRTC sessions and chat with sub-second responses. Teams use it for production call agents that need to scale to thousands of simultaneous conversations.

You can start with a REST API and move to programmatic control for complex multi-turn flows when needed. Agents work in more than 30 languages and can switch language mid-call, change LLM mid-conversation, and connect to any SIP or VoIP provider such as Twilio or Vonage.

Calls can be handed to a human with a briefing on what was said, and if an LLM provider fails, calls move to another one automatically. The developer tier includes 1,000 free minutes with no card, and the Growth plan bills per minute in one-second increments, excluding VoIP and LLM token costs.