curl --request PATCH \
  --url https://api.sigmamind.ai/v1/chats/{chatId} \
  --header 'Content-Type: application/json' \
  --header 'X-API-Key: <api-key>' \
  --data '
{
  "agentId": "agent_D5D0p7TUs66TTAEAx",
  "dynamicVariables": {
    "customer_name": "Michael"
  }
}
'

import requests

url = "https://api.sigmamind.ai/v1/chats/{chatId}"

payload = {
    "agentId": "agent_D5D0p7TUs66TTAEAx",
    "dynamicVariables": { "customer_name": "Michael" }
}
headers = {
    "X-API-Key": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'PATCH',
  headers: {'X-API-Key': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    agentId: 'agent_D5D0p7TUs66TTAEAx',
    dynamicVariables: {customer_name: 'Michael'}
  })
};

fetch('https://api.sigmamind.ai/v1/chats/{chatId}', 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.sigmamind.ai/v1/chats/{chatId}",
  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([
    'agentId' => 'agent_D5D0p7TUs66TTAEAx',
    'dynamicVariables' => [
        'customer_name' => 'Michael'
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "X-API-Key: <api-key>"
  ],
]);

$response = curl_exec($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.sigmamind.ai/v1/chats/{chatId}"

	payload := strings.NewReader("{\n  \"agentId\": \"agent_D5D0p7TUs66TTAEAx\",\n  \"dynamicVariables\": {\n    \"customer_name\": \"Michael\"\n  }\n}")

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

	req.Header.Add("X-API-Key", "<api-key>")
	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.sigmamind.ai/v1/chats/{chatId}")
  .header("X-API-Key", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"agentId\": \"agent_D5D0p7TUs66TTAEAx\",\n  \"dynamicVariables\": {\n    \"customer_name\": \"Michael\"\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.sigmamind.ai/v1/chats/{chatId}")

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

request = Net::HTTP::Patch.new(url)
request["X-API-Key"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"agentId\": \"agent_D5D0p7TUs66TTAEAx\",\n  \"dynamicVariables\": {\n    \"customer_name\": \"Michael\"\n  }\n}"

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

{
  "chatId": "chat-d17T6uReChpyfFeP",
  "agent": {
    "name": "New AI Agent",
    "agentId": "agent_D5D0p7TUs66TTAEAx",
    "status": "Live"
  },
  "createdAt": "2021-04-20T10:00:00.000Z",
  "status": "ended",
  "transcript": "<string>",
  "response": [
    {
      "id": "item_G9YdhDqua0EngI1G",
      "role": "assistant",
      "type": "message",
      "content": [
        "Hello! My name is Grace, and I'm calling on behalf of SigmaMind AI. Am I speaking with Michael?"
      ]
    }
  ],
  "messages": [
    {
      "id": "item_G9YdhDqua0EngI1G",
      "role": "assistant",
      "type": "message",
      "content": [
        "Hello! My name is Grace, and I'm calling on behalf of SigmaMind AI. Am I speaking with Michael?"
      ]
    }
  ],
  "dynamicVariables": {
    "customer_name": "Michael",
    "account_id": "ACC-001"
  }
}

{
  "error": "Bad Request",
  "message": "Invalid request parameters",
  "path": "/v1/chats",
  "status": 400,
  "timestamp": "2026-05-05T10:06:43.724Z"
}

{
  "error": "Unauthorized",
  "message": "X-API-Key is missing or invalid",
  "path": "/v1/chats",
  "status": 401,
  "timestamp": "2026-05-05T10:06:43.724Z"
}

{
  "error": "Forbidden",
  "message": "Access denied for this resource",
  "path": "/v1/chats",
  "status": 403,
  "timestamp": "2026-05-05T10:06:43.724Z"
}

{
  "error": "Not Found",
  "message": "The requested resource was not found",
  "path": "/v1/chats",
  "status": 404,
  "timestamp": "2026-05-05T10:06:43.724Z"
}

{
  "error": "Internal Server Error",
  "message": "Unexpected server error",
  "path": "/v1/chats",
  "status": 500,
  "timestamp": "2026-05-05T10:06:43.724Z"
}