Update an agent

curl --request PATCH \
  --url https://api.voice.wixzel.com/v1/agents/{id} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "name": "<string>",
  "system_prompt": "<string>",
  "opening_message": "<string>",
  "voice": {
    "turn_taking": {
      "interrupt_sensitivity": "normal",
      "silence_wait_ms": 1600
    }
  },
  "language": "en-US",
  "knowledge_base_id": "6a96a3ead6e886d42462dd3e",
  "outbound_phone_number_id": "6a96a3ead6e886d42462dd3e",
  "appointment_booking_enabled": false,
  "mcp_server_ids": [
    "6a96a3ead6e886d42462dd3e"
  ]
}
'

import requests

url = "https://api.voice.wixzel.com/v1/agents/{id}"

payload = {
    "name": "<string>",
    "system_prompt": "<string>",
    "opening_message": "<string>",
    "voice": { "turn_taking": {
            "interrupt_sensitivity": "normal",
            "silence_wait_ms": 1600
        } },
    "language": "en-US",
    "knowledge_base_id": "6a96a3ead6e886d42462dd3e",
    "outbound_phone_number_id": "6a96a3ead6e886d42462dd3e",
    "appointment_booking_enabled": False,
    "mcp_server_ids": ["6a96a3ead6e886d42462dd3e"]
}
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({
    name: '<string>',
    system_prompt: '<string>',
    opening_message: '<string>',
    voice: {turn_taking: {interrupt_sensitivity: 'normal', silence_wait_ms: 1600}},
    language: 'en-US',
    knowledge_base_id: '6a96a3ead6e886d42462dd3e',
    outbound_phone_number_id: '6a96a3ead6e886d42462dd3e',
    appointment_booking_enabled: false,
    mcp_server_ids: ['6a96a3ead6e886d42462dd3e']
  })
};

fetch('https://api.voice.wixzel.com/v1/agents/{id}', 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.voice.wixzel.com/v1/agents/{id}",
  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([
    'name' => '<string>',
    'system_prompt' => '<string>',
    'opening_message' => '<string>',
    'voice' => [
        'turn_taking' => [
                'interrupt_sensitivity' => 'normal',
                'silence_wait_ms' => 1600
        ]
    ],
    'language' => 'en-US',
    'knowledge_base_id' => '6a96a3ead6e886d42462dd3e',
    'outbound_phone_number_id' => '6a96a3ead6e886d42462dd3e',
    'appointment_booking_enabled' => false,
    'mcp_server_ids' => [
        '6a96a3ead6e886d42462dd3e'
    ]
  ]),
  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.voice.wixzel.com/v1/agents/{id}"

	payload := strings.NewReader("{\n  \"name\": \"<string>\",\n  \"system_prompt\": \"<string>\",\n  \"opening_message\": \"<string>\",\n  \"voice\": {\n    \"turn_taking\": {\n      \"interrupt_sensitivity\": \"normal\",\n      \"silence_wait_ms\": 1600\n    }\n  },\n  \"language\": \"en-US\",\n  \"knowledge_base_id\": \"6a96a3ead6e886d42462dd3e\",\n  \"outbound_phone_number_id\": \"6a96a3ead6e886d42462dd3e\",\n  \"appointment_booking_enabled\": false,\n  \"mcp_server_ids\": [\n    \"6a96a3ead6e886d42462dd3e\"\n  ]\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.voice.wixzel.com/v1/agents/{id}")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"name\": \"<string>\",\n  \"system_prompt\": \"<string>\",\n  \"opening_message\": \"<string>\",\n  \"voice\": {\n    \"turn_taking\": {\n      \"interrupt_sensitivity\": \"normal\",\n      \"silence_wait_ms\": 1600\n    }\n  },\n  \"language\": \"en-US\",\n  \"knowledge_base_id\": \"6a96a3ead6e886d42462dd3e\",\n  \"outbound_phone_number_id\": \"6a96a3ead6e886d42462dd3e\",\n  \"appointment_booking_enabled\": false,\n  \"mcp_server_ids\": [\n    \"6a96a3ead6e886d42462dd3e\"\n  ]\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.voice.wixzel.com/v1/agents/{id}")

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  \"name\": \"<string>\",\n  \"system_prompt\": \"<string>\",\n  \"opening_message\": \"<string>\",\n  \"voice\": {\n    \"turn_taking\": {\n      \"interrupt_sensitivity\": \"normal\",\n      \"silence_wait_ms\": 1600\n    }\n  },\n  \"language\": \"en-US\",\n  \"knowledge_base_id\": \"6a96a3ead6e886d42462dd3e\",\n  \"outbound_phone_number_id\": \"6a96a3ead6e886d42462dd3e\",\n  \"appointment_booking_enabled\": false,\n  \"mcp_server_ids\": [\n    \"6a96a3ead6e886d42462dd3e\"\n  ]\n}"

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

{
  "id": "6a96a3ead6e886d42462dd3e",
  "object": "agent",
  "name": "<string>",
  "system_prompt": "<string>",
  "opening_message": "<string>",
  "voice": {
    "stt": {
      "model": "deepgram/nova-3",
      "language": "en-US",
      "endpointing_ms": 1050
    },
    "llm": {
      "model": "openrouter/gpt-4o-mini",
      "temperature": 1,
      "max_tokens": 2048
    },
    "tts": {
      "model": "elevenlabs/eleven_flash_v2_5",
      "voice": "21m00Tcm4TlvDq8ikWAM",
      "stability": 0.5,
      "similarity_boost": 0.5,
      "speed": 0.95
    },
    "realtime": {
      "model": "google/gemini-live",
      "voice": "Charon",
      "language": "auto"
    },
    "turn_taking": {
      "interrupt_sensitivity": "normal",
      "silence_wait_ms": 1600
    }
  },
  "language": "<string>",
  "knowledge_base_id": "6a96a3ead6e886d42462dd3e",
  "outbound_phone_number_id": "6a96a3ead6e886d42462dd3e",
  "appointment_booking_enabled": true,
  "human_transfer": {
    "destinations": [
      {
        "id": "billing",
        "name": "Billing team",
        "phone_number": "+14155550100",
        "type": "phone",
        "enabled": true,
        "ring_timeout_seconds": 32
      }
    ],
    "enabled": false,
    "mode": "blind",
    "default_destination_id": "<string>",
    "ring_timeout_seconds": 20,
    "max_transfers_per_call": 3,
    "return_to_agent_on_failure": true
  },
  "mcp_server_ids": [
    "6a96a3ead6e886d42462dd3e"
  ],
  "created_at": "2026-09-01T12:00:00.000Z"
}

{
  "error": {
    "type": "invalid_request_error",
    "code": "agent_not_found",
    "message": "<string>",
    "request_id": "req_01HXYZ...",
    "param": "<string>",
    "doc_url": "<string>"
  }
}

{
  "error": {
    "type": "invalid_request_error",
    "code": "agent_not_found",
    "message": "<string>",
    "request_id": "req_01HXYZ...",
    "param": "<string>",
    "doc_url": "<string>"
  }
}

{
  "error": {
    "type": "invalid_request_error",
    "code": "agent_not_found",
    "message": "<string>",
    "request_id": "req_01HXYZ...",
    "param": "<string>",
    "doc_url": "<string>"
  }
}

{
  "error": {
    "type": "invalid_request_error",
    "code": "agent_not_found",
    "message": "<string>",
    "request_id": "req_01HXYZ...",
    "param": "<string>",
    "doc_url": "<string>"
  }
}

{
  "error": {
    "type": "invalid_request_error",
    "code": "agent_not_found",
    "message": "<string>",
    "request_id": "req_01HXYZ...",
    "param": "<string>",
    "doc_url": "<string>"
  }
}