# Messaging and Voice Channels

If you’re testing this on your local computer (i.e. not a server), you will need to use [ngrok](/content/docs/rasa-x/get-feedback-from-test-users/#use-ngrok-for-local-testing/index.html). This gives your machine a domain name so that Facebook, Slack, etc. know where to send messages to reach your local machine.

To make your assistant available on a messaging platform you need to provide credentials in a `credentials.yml` file. An example file is created when you run `rasa init`, so it’s easiest to edit that file and add your credentials there. Here is an example with Facebook credentials:

```
facebook:
  verify: "rasa-bot"
  secret: "3e34709d01ea89032asdebfe5a74518"
  page-access-token: "EAAbHPa7H9rEBAAuFk4Q3gPKbDedQnx4djJJ1JmQ7CAqO4iJKrQcNT0wtD"
```

Learn how to make your assistant available on:

- [Your Own Website](https://legacy-docs-v1.rasa.com/1.2.9/user-guide/connectors/your-own-website/)
- [Facebook Messenger](https://legacy-docs-v1.rasa.com/1.2.9/user-guide/connectors/facebook-messenger/)
- [Slack](https://legacy-docs-v1.rasa.com/1.2.9/user-guide/connectors/slack/)
- [Telegram](https://legacy-docs-v1.rasa.com/1.2.9/user-guide/connectors/telegram/)
- [Twilio](https://legacy-docs-v1.rasa.com/1.2.9/user-guide/connectors/twilio/)
- [Microsoft Bot Framework](https://legacy-docs-v1.rasa.com/1.2.9/user-guide/connectors/microsoft-bot-framework/)
- [Cisco Webex Teams](https://legacy-docs-v1.rasa.com/1.2.9/user-guide/connectors/cisco-webex-teams/)
- [RocketChat](https://legacy-docs-v1.rasa.com/1.2.9/user-guide/connectors/rocketchat/)
- [Mattermost](https://legacy-docs-v1.rasa.com/1.2.9/user-guide/connectors/mattermost/)
- [Custom Connectors](https://legacy-docs-v1.rasa.com/1.2.9/user-guide/connectors/custom-connectors/)