> ## Documentation Index
> Fetch the complete documentation index at: https://tyk.io/docs/llms.txt
> Use this file to discover all available pages before exploring further.
# Swap out Swagger UI for ReDoc
**Legacy: Tyk Classic Portal**
You're viewing documentation for the **Tyk Classic Portal**, which is no longer actively maintained.
If you're looking for the latest API documentation for the **new Tyk Developer Portal**, please refer to the
[Postman collection](/nightly/product-stack/tyk-enterprise-developer-portal/api-documentation/tyk-edp-api) or visit the
[Tyk Developer Portal](/nightly/portal/overview/intro) section.
The Classic Portal is in maintenance mode and will be deprecated soon. For questions or support, contact us at
[support@tyk.io]().
This short guide will show you how easy it is to swap out out the default [https://swagger.io/tools/swagger-ui/](https://swagger.io/tools/swagger-ui/) library for Portal Catalog API documentation for another tool like [ReDoc](https://redocly.github.io/redoc/)
* Open up the default `/opt/tyk-dashboard/portal/templates/swagger.html`
```
{{ define "swaggerPage" }}
{{ template "header" .}}
{/* */}
{{ template "navigation" . }}