> ## Documentation Index
> Fetch the complete documentation index at: https://docs.rustybrowser.com/llms.txt
> Use this file to discover all available pages before exploring further.
# Fetch HTML
> Fetch the current page's HTML
## Description
Returns the HTML source of the current page or a specific node.
## Authentication
Open-source deployments do not require authentication by default. If your server config enables `X-API-Key`, include that header with the request.
## Path Parameters
The browser ID returned from Create Session.
## Request Body
Node ID to scope the HTML to a specific element. If omitted, returns the full page HTML.
## Response
The HTML content of the page or matched node.
## Example
```bash theme={null}
curl -X POST http://localhost:8080/browsers/exc-b9534e98-c3ce-4d1b-9671-b563ac66adc3/fetch-html/ \
-H "Content-Type: application/json" \
-d '{ "node_id": 123 }'
```
```json 200 theme={null}
{
"html": "..."
}
```