> For the complete documentation index, see [llms.txt](https://docs.caf.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.caf.io/caf-api/connect/available-resources/transaction.md).

# Transaction

When you submit a query to the Anti-Fraud services, you create a Transaction. A transaction may contain the execution of one or more services configured in the query model or informed in the request body. These services may be internal analyses or external queries that are performed on the processing conveyor. After that, based on validation rules, the status is set for the transaction.

{% hint style="info" %}
*Services and validation rules can be configured only in the query template.*
{% endhint %}

A transaction is characterized by an endpoint where the required services can be informed and a set of rules validated.

{% hint style="info" %}
**Related documentation:**

* If you use Certta SDKs and need to link mobile tokens with transactions, access [Transaction linking](/caf-api/connect/transactions/transaction-linking.md)
* To understand the structure and services available in transaction responses, access [Transactions](/caf-api/connect/transactions.md)
  {% endhint %}

{% hint style="info" %}
**Transaction webhooks:** Transactions created directly through `POST /transactions` do not emit `TRANSACTIONPROCESSSTARTEDEVENT`. Use the transaction `id` returned by the creation request to correlate subsequent `TRANSACTIONSTATUSUPDATEDEVENT` and related events. See [Webhook Events](/caf-api/connect/webhook/events.md).
{% endhint %}

For details on authentication, access [Authenticating](/caf-api/connect/authentication/authenticating.md).

{% hint style="info" %}
**Authentication Requirements:**

* Regular endpoints use `OAuth2` authentication with base URL: `https://api.us.prd.caf.io`
* For enhanced security, some endpoints may also support `mTLS` authentication with base URL: `https://mtls.us.prd.caf.io`
* For information on implementing `mTLS`, access [Using mTLS](/caf-api/connect/authentication/using-mtls.md)
  {% endhint %}

## Supported endpoints

{% openapi src="/files/0h3YuWQJnj9hUFn19UQD" path="/" method="post" %}
[transactions-create.yaml](https://3218940882-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FbVxCOSyBojfSIE5fcpfH%2Fuploads%2Fgit-blob-deb2f47d7ea311f5bee80f670dc6043c2ee5c700%2Ftransactions-create.yaml?alt=media)
{% endopenapi %}

{% openapi src="/files/hhTdvSA39Z50BzG4sc0y" path="/files" method="post" %}
[transactions-files.yaml](https://3218940882-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FbVxCOSyBojfSIE5fcpfH%2Fuploads%2Fgit-blob-9e76c6b41d136390c25c0ec9876949c28e9e972c%2Ftransactions-files.yaml?alt=media)
{% endopenapi %}

{% openapi src="/files/7uwORj881sSekzC56Mu7" path="/" method="get" %}
[transactions-get-list.yaml](https://3218940882-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FbVxCOSyBojfSIE5fcpfH%2Fuploads%2Fgit-blob-4262575b9aecaefb412baa51866ba1335a7da360%2Ftransactions-get-list.yaml?alt=media)
{% endopenapi %}

{% openapi src="/files/XNtvc596walCnuDRTzl8" path="/{transactionId}" method="get" %}
[transactions-get-one.yaml](https://3218940882-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FbVxCOSyBojfSIE5fcpfH%2Fuploads%2Fgit-blob-cbe1ea142ff4ad47d25a3dcdd408cf3b554968ce%2Ftransactions-get-one.yaml?alt=media)
{% endopenapi %}

{% hint style="info" %}
Ensure your `OAuth2` client has the necessary permissions for each endpoint. Permissions are managed in **Trust**. Requests without proper permissions will result in a **`403 Forbidden`** error.
{% endhint %}


---

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```
GET https://docs.caf.io/caf-api/connect/available-resources/transaction.md?ask=<question>&goal=<endgoal>
```

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