# Connect your systems

Source: https://docs.revoplyai.com/connect-your-systems/

> How flows and the assistant call your own API through API connections, HTTP steps and AI actions.

Your store, CRM or booking system knows things RevoplyAI does not: where an order is,
whether an item is in stock, which slots are free. Three pieces let flows and the
assistant ask it:

| Piece                                                    | What it is                                                                       |
| -------------------------------------------------------- | -------------------------------------------------------------------------------- |
| [API connection](/connect-your-systems/api-connections/) | Your system's base URL and how to authenticate to it. Set up once, used by name. |
| [HTTP step](/connect-your-systems/http-steps/)           | A step in a flow that calls your API and keeps values from the answer.           |
| [AI action](/connect-your-systems/ai-actions/)           | A call the assistant may decide to make while it talks to a customer.            |

All three are part of the Business plan, and are managed by an Owner or an Admin under
**Integrations** (connections and actions) and in the flow builder (HTTP steps).

The direction matters:

* These pages are about **us calling you**, in the middle of a conversation.
* [Webhooks](/webhooks/) are us telling you something happened, after the fact.
* [Flow triggers](/flow-triggers/) are you calling us to start a flow.

Every call goes out from our servers under the same rules: HTTPS to a public address, no
redirects, strict timeouts and size limits, and a daily allowance per account. See
[Requests we send](/connect-your-systems/requests-we-send/).