Rasa
by Rasa
Open-source framework for building text and voice conversational agents — combines NLU, dialogue management, and its CALM LLM-native approach. 21k+ GitHub stars, Apache-2.0. Python framework and CLI.
Skills
Intent & Entity Recognition
Classifies user intents and extracts entities from messages to drive structured conversational logic.
Dialogue Management
Tracks conversation state and decides the next action or response across multi-turn dialogues.
CALM Agents
Builds LLM-native assistants that follow business logic reliably using Conversational AI with Language Models.
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