Rasa
AI employees & digital coworkersRasa
Rasa is a developer platform for building conversational AI agents with business logic, using its CALM engine. Rasa Open Source is in maintenance mode.
- Developer Edition
- Code and visual builder
- CALM engine
- Self-hosted
At a glance
Rasa is in the directory but not on our ranked shortlists, and we have no traction figure for it yet.
Key facts
As of Nov 12, 2026
- Who it's for
- Engineering teams that want to build and control their own assistants in code, with a free Developer Edition to start.
- What does it do?
- A platform to build, test, deploy and run AI agents, designing assistants in code or a no-code flow builder. It combines LLM fluency with business logic through its CALM engine. The README says the original Rasa Open Source is in maintenance mode.
- What does it cost?
- Free Developer Edition: a free Rasa license for local or production use, limited to one bot per company with up to 1,000 external or 100 internal conversations a month. Enterprise is by contacting sales.
- Where does it run?
- You run it yourself: free Developer Edition for local or production use, with agents, logic and data staying with you.
- What does it connect to?
- Channels such as Slack and Facebook (legacy README), a custom actions server (Rasa SDK) and enterprise search.
- Who makes it?
- Rasa. The Rasa Open Source repo is Apache-2.0.
Common questions
What is Rasa?
Rasa is a developer platform for building conversational AI agents with business logic, using its CALM engine. Rasa Open Source is in maintenance mode.
Who is Rasa for?
Engineering teams that want to build and control their own assistants in code, with a free Developer Edition to start.
How much does Rasa cost?
Free Developer Edition: a free Rasa license for local or production use, limited to one bot per company with up to 1,000 external or 100 internal conversations a month. Enterprise is by contacting sales. Checked against the vendor's pages on Nov 12, 2026. Plans change often, so confirm before you decide.
Does Rasa run locally or in the cloud?
Rasa runs in the vendor's cloud. You use it through chat apps and an API.
What are alternatives to Rasa?
See the AI employees & digital coworkers shortlist for the other options.
Compare Rasa
No head-to-head pages for this one yet.