# Flow Integrations

[Flow](/doc/rules/flow.md) allows you to connect directly to external systems — databases, REST APIs, and other services — as part of your automation logic. Each integration is available as a dedicated node in the Flow Designer, and connections are managed through [Connectors](/doc/space/connectors.md) stored at the [Space](/doc/space/spaces.md) level.

This section covers the external services you can use inside a flow, how to set them up, and how to use them effectively.

{% hint style="info" %}
All integrations described here are used **inside** a flow — DecisionRules is the one making the connection. If you are looking for ways to call DecisionRules from your own application, see [SDK & Libraries](/doc/integrations/sdk-and-libraries.md).
{% endhint %}


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