# Authorization

The CSPR.cloud API is exclusively available to registered users. To authorize your API requests, an access token is required. The access tokens identify the API user and their corresponding access tier limitations. Please visit the [CSPR.cloud](https://cspr.cloud) website to learn about the tiers and to submit an access token request. To learn more about rate limites and quotas please read the [Rate limits and quotas](https://docs.cspr.cloud/1.3.x/documentation/overview/rate-limits-and-quotas) documentation page.

## Authorization header

The access token should be included in the `Authorization` header:

```bash
curl --request GET \
    'https://node.testnet.cspr.cloud/status' \
    --header "Authorization: 55f79117-fc4d-4d60-9956-65423f39a06a"
```

{% hint style="info" %}
The access token provided in the example above is for the demonstration purposes only, and has limited capabilities.
{% endhint %}

To learn how to include the `Authorization` header in Casper SDKs to access the CSPR.cloud Casper Node please read the [Connecting with an SDK](https://docs.cspr.cloud/1.3.x/casper-node-api/connecting-with-an-sdk) page.

## Accessing from a browser

At this moment CPSR.cloud provides only the server side integration. By using your access token in a front-end application, you'll expose it to the world.

## Reporting

You can request the usage report by sending an email from your registered account to <support@cspr.cloud>.


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.cspr.cloud/1.3.x/documentation/overview/authorization.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.