These docs are for version 1.x of Rasa Open Source.

> [Docs for the new version 2.0 can be found here.](/content/docs/rasa/index.html)

# User Guide

- [Installation](https://legacy-docs-v1.rasa.com/1.9.0/user-guide/installation/)
- [Tutorial: Rasa Basics](https://legacy-docs-v1.rasa.com/1.9.0/user-guide/rasa-tutorial/)
- [Tutorial: Building Assistants](https://legacy-docs-v1.rasa.com/1.9.0/user-guide/building-assistants/)
- [Command Line Interface](https://legacy-docs-v1.rasa.com/1.9.0/user-guide/command-line-interface/)
- [Architecture](https://legacy-docs-v1.rasa.com/1.9.0/user-guide/architecture/)
- [Messaging and Voice Channels](https://legacy-docs-v1.rasa.com/1.9.0/user-guide/messaging-and-voice-channels/)
- [Testing Your Assistant](https://legacy-docs-v1.rasa.com/1.9.0/user-guide/testing-your-assistant/)
- [Validate Data](https://legacy-docs-v1.rasa.com/1.9.0/user-guide/validate-files/)
- [Configuring the HTTP API](https://legacy-docs-v1.rasa.com/1.9.0/user-guide/configuring-http-api/)
- [Deploying Your Rasa Assistant](https://legacy-docs-v1.rasa.com/1.9.0/user-guide/how-to-deploy/)
- [Cloud Storage](https://legacy-docs-v1.rasa.com/1.9.0/user-guide/cloud-storage/)

# NLU

- [About](https://legacy-docs-v1.rasa.com/1.9.0/nlu/about/)
- [Using NLU Only](https://legacy-docs-v1.rasa.com/1.9.0/nlu/using-nlu-only/#)
- [Training Data Format](https://legacy-docs-v1.rasa.com/1.9.0/nlu/training-data-format/)
- [Language Support](https://legacy-docs-v1.rasa.com/1.9.0/nlu/language-support/)
- [Choosing a Pipeline](https://legacy-docs-v1.rasa.com/1.9.0/nlu/choosing-a-pipeline/)
- [Components](https://legacy-docs-v1.rasa.com/1.9.0/nlu/components/)
- [Entity Extraction](https://legacy-docs-v1.rasa.com/1.9.0/nlu/entity-extraction/)

# Core

- [About](https://legacy-docs-v1.rasa.com/1.9.0/core/about/)
- [Stories](https://legacy-docs-v1.rasa.com/1.9.0/core/stories/)
- [Domains](https://legacy-docs-v1.rasa.com/1.9.0/core/domains/)
- [Responses](https://legacy-docs-v1.rasa.com/1.9.0/core/responses/)
- [Actions](https://legacy-docs-v1.rasa.com/1.9.0/core/actions/)
- [Reminders and External Events](https://legacy-docs-v1.rasa.com/1.9.0/core/reminders-and-external-events/)
- [Policies](https://legacy-docs-v1.rasa.com/1.9.0/core/policies/)
- [Slots](https://legacy-docs-v1.rasa.com/1.9.0/core/slots/)
- [Forms](https://legacy-docs-v1.rasa.com/1.9.0/core/forms/)
- [Retrieval Actions](https://legacy-docs-v1.rasa.com/1.9.0/core/retrieval-actions/)
- [Interactive Learning](https://legacy-docs-v1.rasa.com/1.9.0/core/interactive-learning/)
- [Fallback Actions](https://legacy-docs-v1.rasa.com/1.9.0/core/fallback-actions/)
- [Knowledge Base Actions](https://legacy-docs-v1.rasa.com/1.9.0/core/knowledge-bases/)

# Conversation Design

- [Dialogue Elements](https://legacy-docs-v1.rasa.com/1.9.0/dialogue-elements/dialogue-elements/)
- [Small Talk](https://legacy-docs-v1.rasa.com/1.9.0/dialogue-elements/small-talk/)
- [Completing Tasks](https://legacy-docs-v1.rasa.com/1.9.0/dialogue-elements/completing-tasks/)
- [Guiding Users](https://legacy-docs-v1.rasa.com/1.9.0/dialogue-elements/guiding-users/)

# API Reference

- [Action Server](https://legacy-docs-v1.rasa.com/1.9.0/api/action-server/)
- [HTTP API](https://legacy-docs-v1.rasa.com/1.9.0/api/http-api/)
- [Jupyter Notebooks](https://legacy-docs-v1.rasa.com/1.9.0/api/jupyter-notebooks/)
- [Agent](https://legacy-docs-v1.rasa.com/1.9.0/api/agent/)
- [Custom NLU Components](https://legacy-docs-v1.rasa.com/1.9.0/api/custom-nlu-components/)
- [Rasa SDK](https://legacy-docs-v1.rasa.com/1.9.0/api/rasa-sdk/)
- [Events](https://legacy-docs-v1.rasa.com/1.9.0/api/events/)
- [Tracker](https://legacy-docs-v1.rasa.com/1.9.0/api/tracker/)
- [Tracker Stores](https://legacy-docs-v1.rasa.com/1.9.0/api/tracker-stores/)
- [Event Brokers](https://legacy-docs-v1.rasa.com/1.9.0/api/event-brokers/)
- [Lock Stores](https://legacy-docs-v1.rasa.com/1.9.0/api/lock-stores/)
- [Training Data Importers](https://legacy-docs-v1.rasa.com/1.9.0/api/training-data-importers/)
- [Featurization of Conversations](https://legacy-docs-v1.rasa.com/1.9.0/api/core-featurization/)
- [TensorFlow Configuration](https://legacy-docs-v1.rasa.com/1.9.0/api/tensorflow_usage/)
- [Migration Guide](https://legacy-docs-v1.rasa.com/1.9.0/migration-guide/)
- [Rasa Open Source Change Log](https://legacy-docs-v1.rasa.com/1.9.0/changelog/)

# Migrate from (beta)

- [Dialogflow](https://legacy-docs-v1.rasa.com/1.9.0/migrate-from/google-dialogflow-to-rasa/)
- [Wit.ai](https://legacy-docs-v1.rasa.com/1.9.0/migrate-from/facebook-wit-ai-to-rasa/)
- [LUIS](https://legacy-docs-v1.rasa.com/1.9.0/migrate-from/microsoft-luis-to-rasa/)
- [IBM Watson](https://legacy-docs-v1.rasa.com/1.9.0/migrate-from/ibm-watson-to-rasa/)

# Reference

- [Glossary](https://legacy-docs-v1.rasa.com/1.9.0/glossary/)

# Versions

> viewing: 1.9.0

# Using NLU Only

If you want to use Rasa only as an NLU component, you can!

## Training NLU-only models

To train an NLU model only, run:

```
rasa train nlu
```

This will look for NLU training data files in the `data/` directory and saves a trained model in the `models/` directory. The name of the model will start with `nlu-`.

## Testing your NLU model on the command line

To try out your NLU model on the command line, use the `rasa shell nlu` command:

```
rasa shell nlu
```

This will start the rasa shell and ask you to type in a message to test. You can keep typing in as many messages as you like.

Alternatively, you can leave out the `nlu` argument and pass in an nlu-only model directly:

```
rasa shell -m models/nlu-20190515-144445.tar.gz
```

## Running an NLU server

To start a server with your NLU model, pass in the model name at runtime:

```
rasa run --enable-api -m models/nlu-20190515-144445.tar.gz
```

You can then request predictions from your model using the `/model/parse` endpoint. To do this, run:

```
curl localhost:5005/model/parse -d '{"text":"hello"}'
```