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GET
/
user
/
assistants
/
synthesizer-providers
Get synthesizer providers
curl --request GET \
  --url https://app.autocalls.ai/api/user/assistants/synthesizer-providers \
  --header 'Authorization: Bearer <token>'
import requests

url = "https://app.autocalls.ai/api/user/assistants/synthesizer-providers"

headers = {"Authorization": "Bearer <token>"}

response = requests.get(url, headers=headers)

print(response.text)
const options = {method: 'GET', headers: {Authorization: 'Bearer <token>'}};

fetch('https://app.autocalls.ai/api/user/assistants/synthesizer-providers', 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://app.autocalls.ai/api/user/assistants/synthesizer-providers",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>"
  ],
]);

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

curl_close($curl);

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

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

func main() {

	url := "https://app.autocalls.ai/api/user/assistants/synthesizer-providers"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("Authorization", "Bearer <token>")

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

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

	fmt.Println(string(body))

}
HttpResponse<String> response = Unirest.get("https://app.autocalls.ai/api/user/assistants/synthesizer-providers")
  .header("Authorization", "Bearer <token>")
  .asString();
require 'uri'
require 'net/http'

url = URI("https://app.autocalls.ai/api/user/assistants/synthesizer-providers")

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

request = Net::HTTP::Get.new(url)
request["Authorization"] = 'Bearer <token>'

response = http.request(request)
puts response.read_body
[
  {
    "id": 1,
    "name": "ElevenLabs",
    "code": "elevenlabs"
  },
  {
    "id": 2,
    "name": "Azure",
    "code": "azure"
  },
  {
    "id": 3,
    "name": "Cartesia",
    "code": "cartesia"
  }
]

[
  {
    "id": 1,
    "name": "ElevenLabs",
    "code": "elevenlabs"
  },
  {
    "id": 3,
    "name": "Cartesia",
    "code": "cartesia"
  }
]
This endpoint returns a list of available synthesizer providers that can be used when creating or updating assistants. Use the returned id as synthesizer_provider_id when configuring an assistant.

​
Query Parameters

​
language_id
integer
Filter providers by language support. Only returns providers that support the given language. Use the Get Languages endpoint to get available language IDs.

​
Response fields

​
data
array
[
  {
    "id": 1,
    "name": "ElevenLabs",
    "code": "elevenlabs"
  },
  {
    "id": 2,
    "name": "Azure",
    "code": "azure"
  },
  {
    "id": 3,
    "name": "Cartesia",
    "code": "cartesia"
  }
]

[
  {
    "id": 1,
    "name": "ElevenLabs",
    "code": "elevenlabs"
  },
  {
    "id": 3,
    "name": "Cartesia",
    "code": "cartesia"
  }
]

​
Notes

  • If no language_id filter is provided, all providers are returned
  • Not all providers support all languages — use the language_id filter to get compatible providers
  • Synthesizer providers are only relevant for pipeline and dualplex modes (multimodal mode handles TTS internally)
  • If you don’t set synthesizer_provider_id when creating an assistant, the language’s default provider is used