# Rasa

> Updated 2026-09-03 · type: tool · category: chat-helpdesk · status: active · rev 1

Reference NLU framework; maintenance mode (CALM shift)

- Open source: yes (Apache-2.0)
- Self-hostable: yes
- Pricing model: free
- Best for: Teams building contextual conversational assistants and chatbots across multiple messaging channels.
- Last verified: 2026-09-04

- **Canonical:** https://gtmstacker.com/registry/tool/rasa/
- **Source:** [github · github.com/RasaHQ](https://github.com/RasaHQ/rasa)
- **Tags:** chat-helpdesk, chat-bots-helpdesk
- **Repository:** https://github.com/RasaHQ/rasa

## Is Rasa open source?

Yes — Apache-2.0-licensed.

## How much does Rasa cost?

It is free to use.

## Can I self-host Rasa?

Yes — it can be self-hosted.


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Reference NLU framework; maintenance mode (CALM shift)