> ## Documentation Index
> Fetch the complete documentation index at: https://docs.en.amplopay.com/llms.txt
> Use this file to discover all available pages before exploring further.
# API blocked
> Why API requests can return a 403 HTML page
## The problem
When making API requests, you may receive an HTML error page instead of the expected JSON response:
```html theme={null}
403
HTTP 403
```
## Why this happens
This block is a platform security measure. The API has a firewall that monitors request origins and blocks traffic from unusual or suspicious locations.
The firewall protects both the platform and integrators from attacks and malicious activity.
## Security technologies
We use security services to protect the infrastructure:
* `Cloudfront`: Amazon Web Services content delivery network.
* `AWS WAF`: Amazon Web Services web application firewall.
These tools analyze traffic and block requests from locations that are not recognized as safe or that show suspicious patterns.
## Accepted locations
Requests are allowed when they originate from locations considered safe, such as:
* `Brazil`
* `United States`
* `Portugal`
* `Other locations considered safe`
## How to resolve it
If you are facing this issue, the solution is to change the request origin to one of the accepted locations above.
You can do this by:
* Using a server located in one of the accepted countries, such as Brazil, the United States, or Portugal.
* Using a VPN with a server in one of the accepted countries.
* Using cloud services, such as AWS, Google Cloud, or Azure, with servers in data centers in accepted countries.
## Summary
* The block happens when the request comes from a location that is not recognized as safe.
* The response is an HTML error page instead of JSON.
* The solution is to change the request origin to a server located in Brazil, the United States, Portugal, or another safe location.
* It is not possible to request an exception or IP whitelist for this type of block.