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

# Proxy

Firstoken Proxy is a rest API that allows you to create HTTP requests containing sensitive tokenized data and send it from your systems securely without needing to access raw token data. The third-party application may include token identifiers, as "{{ | extract | encrypt }}", within the request and send this request through Firstoken systems to replace the token data in the request before forwarding it to the desired destination.

Proxy API uses JSON-encoded requests and responses and uses standard authentication, like the other FirsToken APIs.

In other words, our Proxy is a simple way to simplify the secure transfer of sensitive data via HTTP API calls.

{% hint style="success" %}
**Note:** All Proxies must be called from the base URL [https://api.firstoken.co/](https://api.firstoken.co/proxy)
{% endhint %}

{% hint style="info" %}
**Note:** In case, you have to make some sandbox tests you must be called from the base URL [https://api.firstoken-staging.co/proxy](https://api.firstoken.dev/proxy)
{% endhint %}

When making a request through the Proxy, it will attempt to detokenize any expressions present in the request, containing the token with the filters sent, and then inject the raw token data corresponding to each filter, into the request body before to be sent to the subsequent destination.

This allows to resolve the case where tokenized information needs to be sent to a third party and the third party receives the raw information securely while keeping your systems out of compliance scope.


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