FRENES

AI agent builders

Rasa: review, pricing, data and alternatives

Rasa lets teams build conversational agents and define flows in a visual editor. It serves users who want to connect external services, test conversations and deploy agents within their own infrastructure. A free tier exists. Access and transparency score: 48/100, #17 of 20 in its category.

Free tierAPILocal processing

What is Rasa?

Rasa lets teams build conversational agents and define flows in a visual editor. It serves users who want to connect external services, test conversations and deploy agents within their own infrastructure.

According to its documentation, Rasa lets you:

  • build conversational agents
  • define flows in a visual editor
  • connect agents to external services
  • test conversations
  • deploy agents within your infrastructure

We file it under AI agent builders, the category of tools to build your own AI agents, and it also overlaps with customer service and website chatbots and developer tools. The category lists 20 verified tools on this site.

The publisher is Rasa Technologies, Inc., based in United States.

Who is it for?

It is mostly useful to these profiles: developers, customer support, and project managers. The need it covers is simple to state: build your own AI agents.

Rasa is a good candidate if:

  • you want to try before paying
  • you plan to connect it to your tools or automations through its API
  • you must keep your data in Europe or on your own machine

Before deciding, run a trial on a real task and measure the time saved: it is the only criterion that really counts.

How much does Rasa cost?

Pricing model: freemium (limited free use, then paid). A free plan is offered, usually limited in volume or features.

The entry price is not shown publicly: you have to contact the publisher or create an account to see it.

To estimate what the same work would cost done directly with an AI model, use our API price calculator. Prices change often: always check the official site before subscribing.

Data and privacy

According to its privacy policy, data is processed on your device (local processing).

Local processing is the most favourable case: your files do not leave your machine for the features concerned.

No export feature is documented: keep a copy of your content elsewhere.

Three habits apply to every AI tool:

  • turn off the use of your content for training if the option exists
  • use a work account separate from your personal account
  • review everything the tool produces before publishing or sending it

Platforms, languages and API

Rasa runs on: web browser and API.

Interface languages are not specified.

A public API lets you call it from your own programs or an automation tool, and plug it into an AI agent.

How we scored it

Our 48/100 score does not judge output quality: it measures what can be publicly verified about access to the tool, its openness and how far the publisher can be trusted.

Rasa score breakdown
CriterionPointsWhat counts
Access15/30free tier, published price, French interface
Openness10/30API, data export, open code
Trust23/40identified publisher, declared hosting, age, presence in reference lists
DifyDify : 8181AgentaAgenta : 7878AutoGenAutoGen : 7878Hermes AgentHermes Agent : 7373MastraMastra : 7373OpenClawOpenClaw : 7171BotpressBotpress : 6868MindStudioMindStudio : 6868OrkasOrkas : 6868VoiceflowVoiceflow : 6565RasaRasa : 4848
Rasa ranks #17 of 20. The category's top ten are shown.

The full calculation is explained on our method page.

Comparison with alternatives

Rasa against other tools in the aI agent builders category:

Comparison within the category
ToolFreeEntry priceAPIScore
RasaYesnot publishedYes48
DifyYes$590 per yearYes81
AgentaYes$29 per monthYes78
AutoGenYesnot publishedYes78
Hermes AgentYes$20 per monthYes73
MastraYes$250 per monthYes73
OpenClawYesnot published–71
BotpressYes$150 per monthYes68

Verdict

Rasa publishes little verifiable information: look at the better-scored alternatives first.

Strengths

  • Free tier to try it
  • Public API
  • Local processing available

Limitations

  • Price not published
  • Data export not documented

Avoid if…

  • You need to easily retrieve your full history

Frequently asked questions

Is Rasa free?

Yes, a free plan exists, with usage limits.

Where is Rasa data stored?

According to the publisher, on your device (local processing).

Does Rasa have an API?

Yes, a public API is documented.

What are the alternatives to Rasa?

In the same category: Dify, Agenta, AutoGen, and Hermes Agent.

Rasa or Dify: which one to choose?

Our score is 48/100 for Rasa and 81/100 for Dify. Try both on the same task before paying.

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Neutrality. No affiliate links. No vendor pays to be reviewed, rated or ranked. Reviews are directed by François Chollet, neutral and factual, and every data point is dated and sourced. How we score