> For the complete documentation index, see [llms.txt](https://docs.9proxy.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.9proxy.com/getting-started/residential-proxy-by-ips/for-linux/start-api.md).
# Start API
Follow these steps to enable and use the 9Proxy API on your Linux server.
## 1. Start 9Proxy
To start 9Proxy, run the following command:
```
systemctl start 9proxyd.service
```
### Enable API Function
Activate the API feature by entering:
```
9proxy api
```
## 2. Set API port
Specify the port you want the API to listen on:
```
9proxy api -p [port]
```
* \[port] : your preferred port number
## 3. Check API Status (Optional)
To check the API status at any time, use:
```
9proxy api -d
```
## 4. Start the API
Run the API with:
```
9proxy api -s
```
## 5. Get API URL
Once the API is running, copy the API url shown in the terminal. You can now use this URL to integrate with your system.
## 6. Stop the API
To stop the API when needed, use:
```
9proxy api -c
```
---
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