> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.nvidia.com/fleet-intel/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.nvidia.com/fleet-intel/_mcp/server.

# Set all tags for a node

PUT /v1/nodes/{nodeUUID}/tags
Content-Type: application/json

Set all tags for a node to exactly the provided list (PUT semantics - full replacement)

Tag Validation Rules:
- Format: lowercase letters (a-z), numbers (0-9), hyphens (-), and underscores (_)
- Must start and end with alphanumeric characters
- Separators (hyphen, underscore) cannot be consecutive
- Maximum length: 50 characters
- Reserved names: null, none, undefined, true, false
- Examples: "gpu-health", "test_tag", "node123"

Reference: https://docs.nvidia.com/fleet-intel/api-explorer/tags/put-v-1-nodes-node-uuid-tags

## Request

### Path parameters

- `nodeUUID` (string, required) — Node UUID

### Body (application/json)

- `tags` (list of string, required)

## Response

### 200

OK

- `nodeUUID` (string, optional)
- `tags` (list of string, optional)

## Examples

**Request**

```json
{
  "tags": [
    "production",
    "ml-training"
  ]
}
```

**Response**

```json
{
  "nodeUUID": "84ad8912-1821-4597-bf4f-56a1234abcd7",
  "tags": [
    "production",
    "ml-training"
  ]
}
```

**SDK Code**

```python
import requests

url = "https://api.example.com/v1/nodes/nodeUUID/tags"

payload = { "tags": ["production", "ml-training"] }
headers = {"Content-Type": "application/json"}

response = requests.put(url, json=payload, headers=headers)

print(response.json())
```

```javascript
const url = 'https://api.example.com/v1/nodes/nodeUUID/tags';
const options = {
  method: 'PUT',
  headers: {'Content-Type': 'application/json'},
  body: '{"tags":["production","ml-training"]}'
};

try {
  const response = await fetch(url, options);
  const data = await response.json();
  console.log(data);
} catch (error) {
  console.error(error);
}
```

```go
package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.example.com/v1/nodes/nodeUUID/tags"

	payload := strings.NewReader("{\n  \"tags\": [\n    \"production\",\n    \"ml-training\"\n  ]\n}")

	req, _ := http.NewRequest("PUT", url, payload)

	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(res)
	fmt.Println(string(body))

}
```

```ruby
require 'uri'
require 'net/http'

url = URI("https://api.example.com/v1/nodes/nodeUUID/tags")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Put.new(url)
request["Content-Type"] = 'application/json'
request.body = "{\n  \"tags\": [\n    \"production\",\n    \"ml-training\"\n  ]\n}"

response = http.request(request)
puts response.read_body
```

```java
import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.Unirest;

HttpResponse<String> response = Unirest.put("https://api.example.com/v1/nodes/nodeUUID/tags")
  .header("Content-Type", "application/json")
  .body("{\n  \"tags\": [\n    \"production\",\n    \"ml-training\"\n  ]\n}")
  .asString();
```

```php
<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('PUT', 'https://api.example.com/v1/nodes/nodeUUID/tags', [
  'body' => '{
  "tags": [
    "production",
    "ml-training"
  ]
}',
  'headers' => [
    'Content-Type' => 'application/json',
  ],
]);

echo $response->getBody();
```

```csharp
using RestSharp;

var client = new RestClient("https://api.example.com/v1/nodes/nodeUUID/tags");
var request = new RestRequest(Method.PUT);
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{\n  \"tags\": [\n    \"production\",\n    \"ml-training\"\n  ]\n}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift
import Foundation

let headers = ["Content-Type": "application/json"]
let parameters = ["tags": ["production", "ml-training"]] as [String : Any]

let postData = JSONSerialization.data(withJSONObject: parameters, options: [])

let request = NSMutableURLRequest(url: NSURL(string: "https://api.example.com/v1/nodes/nodeUUID/tags")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "PUT"
request.allHTTPHeaderFields = headers
request.httpBody = postData as Data

let session = URLSession.shared
let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in
  if (error != nil) {
    print(error as Any)
  } else {
    let httpResponse = response as? HTTPURLResponse
    print(httpResponse)
  }
})

dataTask.resume()
```