# API Tutorial
## API Key
:::tip
If you are on an admin account, your API key will also have admin privileges. Please do <b>not</b> disclose your API key.
:::
As shown in the image,
<img src="../images/zh_cn/to_user_info.png" style="width:300px" />
Generate and copy this API key, it will have the same rights as your current account.
<img src="../images/zh_cn/getkey.png" style="width:400px" />
:::warning
Please fill in all parameters, even if they are blank. Otherwise, there may be malfunctions in the API response.
:::
## Example Usages
Suppose you are an admin, and you want to use the API to `get a list of daemons`. You need to use any programming language or HTTP tool to send the following request:
```bash
GET http://example.com/api/service/remote_services_system?apikey=<User Api Key>
Content-Type: application/json; charset=utf-8
X-Requested-With: XMLHttpRequest
```
:::warning
If not otherwise specified, **these HTTP request headers are required**.
- X-Requested-With: XMLHttpRequest
- Content-Type: application/json; charset=utf-8
:::
You will get all daemon's data:
```json
{
// status parameter
// 200: Normal, and returns the corresponding content
// 400: Incorrect request parameters
// 403: Insufficient permissions
// 500: Program error
"status": 200,
// Responded node list
"data": [
{
"version": "3.9.0",
"process": {
"cpu": 5625000,
"memory": 132437320,
"cwd": "D:\\Workspace\\MCSM\\MCSManager-Daemon"
},
"instance": {
"running": 1,
"total": 6
},
"system": {
"type": "Windows_NT",
"hostname": "MyComputer",
"platform": "win32",
"release": "11.0.22000",
"uptime": 410445,
"cwd": "D:\\Workspace\\MCSM\\MCSManager-Daemon",
"loadavg": [0, 0, 0],
"freemem": 5700775936,
"cpuUsage": 0.0490009222256379,
"memUsage": 0.6651475749266619,
"totalmem": 17024741376,
"processCpu": 0,
"processMem": 0
}
}
],
// The time when the request finished processing, can be used to measure latency.
"time": 1643879914006
}
```
