# Connect systems
URL: https://docs.awellhealth.com/docs/connect-systems

> For the complete documentation index, see [llms.txt](https://docs.awellhealth.com/llms.txt).



This section covers getting patients and their information in and out of Awell, whether that means a
hospital electronic medical record (EMR) system over Health Level Seven (HL7) messaging or a REST call
to a vendor.

## Start here [#start-here]

1. [How Awell connects to other systems](/docs/connect-systems/healthcare-interoperability)
   Standards, the integration engine, and why Awell is not a FHIR server.
2. [Ways to connect an EMR](/docs/connect-systems/getting-started-with-integrations)
   What each mechanism needs from the hospital, and how to choose.
3. [EMR integration terminology](/docs/connect-systems/emr-integration-terminology)
   HL7, Mirth, ADT, SIU, and the rest of the vocabulary.

## Connecting an EMR [#connecting-an-emr]

* [Patient creation with SIU messages](/docs/connect-systems/patient-creation-with-siu-messages)
* [Patient Demographics Query](/docs/connect-systems/patient-demographics-query)
* [Patient identifiers](/docs/connect-systems/patient-identifiers)

## Calling other systems from a care flow [#calling-other-systems-from-a-care-flow]

* [The API call action](/docs/connect-systems/the-api-call-action-graphql-and-rest) for REST and GraphQL.
* [Connecting to systems that require OAuth](/docs/connect-systems/oauth-client-credentials).
* [Store static values in constants](/docs/connect-systems/store-static-values-in-constants) so an API
  key or URL lives in one place.
* [Integrate with extensions](/docs/connect-systems/integrate-with-extensions) when a prebuilt
  connector already exists.

## Worked examples [#worked-examples]

* [Awell and Healthie](/docs/connect-systems/awell-healthie), plus
  [setting up a GraphQL API call to Healthie](/docs/connect-systems/healthie-graphql-api-call).
* [Send an email with Mailchimp or Mandrill](/docs/connect-systems/send-an-email-with-mailchimp-mandrill).

## Who this is for [#who-this-is-for]

This section is written for engineers and data-literate operators. Not every organization has a
dedicated person for this, and Awell's forward-deployed team often fills the role.

To react to events *inside* a care flow rather than push data into it, see
[Automate with events](/docs/automate-with-events).