curl --request PATCH \
  --url https://api.agents.slng.ai/v1/agents/{agent_id}/versions/{version_number} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "label": "Before prompt experiment"
}
'

import requests

url = "https://api.agents.slng.ai/v1/agents/{agent_id}/versions/{version_number}"

payload = { "label": "Before prompt experiment" }
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'PATCH',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({label: 'Before prompt experiment'})
};

fetch('https://api.agents.slng.ai/v1/agents/{agent_id}/versions/{version_number}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.agents.slng.ai/v1/agents/{agent_id}/versions/{version_number}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "PATCH",
  CURLOPT_POSTFIELDS => json_encode([
    'label' => 'Before prompt experiment'
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

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

func main() {

	url := "https://api.agents.slng.ai/v1/agents/{agent_id}/versions/{version_number}"

	payload := strings.NewReader("{\n  \"label\": \"Before prompt experiment\"\n}")

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

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

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

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

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.patch("https://api.agents.slng.ai/v1/agents/{agent_id}/versions/{version_number}")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"label\": \"Before prompt experiment\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.agents.slng.ai/v1/agents/{agent_id}/versions/{version_number}")

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

request = Net::HTTP::Patch.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"label\": \"Before prompt experiment\"\n}"

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

{
  "id": "550e8400-e29b-41d4-a716-446655440000",
  "voice_agent_id": "550e8400-e29b-41d4-a716-446655440000",
  "version_number": 2,
  "config_schema_version": 123,
  "config_hash": "<string>",
  "changed_fields": [
    "<string>"
  ],
  "created_at": "2026-01-15T10:30:00Z",
  "code_dependency_hash": "<string>",
  "restored_from_version": 123,
  "label": "<string>"
}

{
  "detail": "Authentication is required for this endpoint."
}

{
  "detail": "You do not have access to this resource."
}

{
  "detail": "The requested resource was not found."
}

{
  "detail": [
    {
      "loc": [
        "body",
        "language"
      ],
      "msg": "Input should be a valid string",
      "type": "string_type"
    }
  ]
}

{
  "detail": "An unexpected internal error occurred."
}