> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.resemble.ai/api-reference/duets/generate-duet/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.resemble.ai/_mcp/server.

# Generate duet

POST https://app.resemble.ai/api/v2/duet
Content-Type: application/json

Generate conversational audio with two speakers

Reference: https://docs.resemble.ai/api-reference/duets/generate-duet

## Authentication

- `Authorization` header (bearer token, required) — API key from https://app.resemble.ai/hub/api

## Request

### Body (application/json)

This endpoint expects an object.

- `voice_pair_id` (integer, required) — Voice pair ID to use
- `script` (list of DuetPostRequestBodyContentApplicationJsonSchemaScriptItems, required)
- `title` (string, optional) — Optional title for the duet
- `callback_uri` (string, optional) — Webhook URL for completion notification

## Response

### 200

Duet generation job created

- `success` (boolean, optional)
- `item` (DuetPostResponsesContentApplicationJsonSchemaItem, optional)

## Types

### DuetPostRequestBodyContentApplicationJsonSchemaScriptItems

- `speaker` (enum, required) — Speaker index (0 or 1)
  - Allowed values: `0`, `1`
- `text` (string, required) — Text for this speaker

### DuetPostResponsesContentApplicationJsonSchemaItem

- `uuid` (string, optional)
- `status` (string, optional)

## Examples

**Request**

```json
{
  "voice_pair_id": 1,
  "script": [
    {
      "speaker": 0,
      "text": "string"
    }
  ]
}
```

**Response**

```json
{
  "success": true,
  "item": {
    "uuid": "string",
    "status": "string"
  }
}
```

**SDK Code**

```python
import requests

url = "https://app.resemble.ai/api/v2/duet"

payload = {
    "voice_pair_id": 1,
    "script": [
        {
            "speaker": 0,
            "text": "string"
        }
    ]
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.json())
```

```javascript
const url = 'https://app.resemble.ai/api/v2/duet';
const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: '{"voice_pair_id":1,"script":[{"speaker":0,"text":"string"}]}'
};

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://app.resemble.ai/api/v2/duet"

	payload := strings.NewReader("{\n  \"voice_pair_id\": 1,\n  \"script\": [\n    {\n      \"speaker\": 0,\n      \"text\": \"string\"\n    }\n  ]\n}")

	req, _ := http.NewRequest("POST", 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(res)
	fmt.Println(string(body))

}
```

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

url = URI("https://app.resemble.ai/api/v2/duet")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"voice_pair_id\": 1,\n  \"script\": [\n    {\n      \"speaker\": 0,\n      \"text\": \"string\"\n    }\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.post("https://app.resemble.ai/api/v2/duet")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"voice_pair_id\": 1,\n  \"script\": [\n    {\n      \"speaker\": 0,\n      \"text\": \"string\"\n    }\n  ]\n}")
  .asString();
```

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

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://app.resemble.ai/api/v2/duet', [
  'body' => '{
  "voice_pair_id": 1,
  "script": [
    {
      "speaker": 0,
      "text": "string"
    }
  ]
}',
  'headers' => [
    'Authorization' => 'Bearer <token>',
    'Content-Type' => 'application/json',
  ],
]);

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

```csharp
using RestSharp;

var client = new RestClient("https://app.resemble.ai/api/v2/duet");
var request = new RestRequest(Method.POST);
request.AddHeader("Authorization", "Bearer <token>");
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{\n  \"voice_pair_id\": 1,\n  \"script\": [\n    {\n      \"speaker\": 0,\n      \"text\": \"string\"\n    }\n  ]\n}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift
import Foundation

let headers = [
  "Authorization": "Bearer <token>",
  "Content-Type": "application/json"
]
let parameters = [
  "voice_pair_id": 1,
  "script": [
    [
      "speaker": 0,
      "text": "string"
    ]
  ]
] as [String : Any]

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

let request = NSMutableURLRequest(url: NSURL(string: "https://app.resemble.ai/api/v2/duet")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "POST"
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()
```