---
"@context": https://schema.org
"@type": TechArticle
"@id": https://www.twilio.com/docs/marketplace/api/available-add-ons#article
headline: AvailableAddOns Resource
description: "Full detailed REST API reference for the AvailableAddOns resource in Twilio's Marketplace REST API. "
url: https://www.twilio.com/docs/marketplace/api/available-add-ons
inLanguage: en
dateModified: 2026-03-09T18:47:22.000Z
author:
  "@type": Organization
  name: Twilio Developer Education Team
publisher:
  "@type": Organization
  name: Twilio
---

# AvailableAddOns Resource

> \[!WARNING]
>
> The Preview API for this resource is deprecated. To migrate from Preview to V1, refer to the Marketplace API migration guide for [users](/docs/marketplace/listings/api-migration-users) or [publishers](/docs/marketplace/publishers/api-migration-publishers).

The AvailableAddOns resource provides detailed descriptions of the Add-on Listings currently available to be installed by an Account.

The AvailableAddOns resource allows you to read a list of all available Add-on Listings or to fetch a specific Add-on Listing's detailed description.

> \[!NOTE]
>
> This API only supports Add-on Listings that are in General Availability (GA) or Beta state. Listings that are labeled as Coming Soon or Developer Preview are not accessible via the API and must be managed in the Console.

## AvailableAddOn Properties

<OperationTable type="properties" data={{"type":"object","refName":"marketplace.v1.available_add_on","modelName":"marketplace_v1_available_add_on","properties":{"sid":{"type":"string","minLength":34,"maxLength":34,"pattern":"^XB[0-9a-fA-F]{32}$","nullable":true,"description":"The unique string that we created to identify the AvailableAddOn resource."},"friendly_name":{"type":"string","nullable":true,"description":"The string that you assigned to describe the resource."},"description":{"type":"string","nullable":true,"description":"A short description of the Add-on's functionality."},"pricing_type":{"type":"string","nullable":true,"description":"How customers are charged for using this Add-on."},"configuration_schema":{"nullable":true,"type":"object","description":"The JSON object with the configuration that must be provided when installing a given Add-on."},"url":{"type":"string","format":"uri","nullable":true,"description":"The absolute URL of the resource."},"links":{"type":"object","format":"uri-map","nullable":true,"description":"The URLs of related resources."}}}} />

## Fetch a single AvailableAddOn resource by SID

`GET https://marketplace.twilio.com/v1/AvailableAddOns/{Sid}`

### Path parameters

```json
[{"name":"Sid","in":"path","description":"The SID of the AvailableAddOn resource to fetch.","schema":{"type":"string","minLength":34,"maxLength":34,"pattern":"^XB[0-9a-fA-F]{32}$"},"required":true}]
```

Fetch a single AvailableAddOn

```js
// Download the helper library from https://www.twilio.com/docs/node/install
const twilio = require("twilio"); // Or, for ESM: import twilio from "twilio";

// Find your Account SID at twilio.com/console
// Provision API Keys at twilio.com/console/runtime/api-keys
// and set the environment variables. See http://twil.io/secure
// For local testing, you can use your Account SID and Auth token
const accountSid = process.env.TWILIO_ACCOUNT_SID;
const apiKey = process.env.TWILIO_API_KEY;
const apiSecret = process.env.TWILIO_API_SECRET;
const client = twilio(apiKey, apiSecret, { accountSid: accountSid });

async function fetchAvailableAddOn() {
  const availableAddOn = await client.marketplace.v1
    .availableAddOns("XBaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa")
    .fetch();

  console.log(availableAddOn.sid);
}

fetchAvailableAddOn();
```

```python
# Download the helper library from https://www.twilio.com/docs/python/install
import os
from twilio.rest import Client

# Find your Account SID at twilio.com/console
# Provision API Keys at twilio.com/console/runtime/api-keys
# and set the environment variables. See http://twil.io/secure
# For local testing, you can use your Account SID and Auth token
api_key = os.environ["TWILIO_API_KEY"]
api_secret = os.environ["TWILIO_API_SECRET"]
account_sid = os.environ["TWILIO_ACCOUNT_SID"]
client = Client(api_key, api_secret, account_sid)

available_add_on = client.marketplace.v1.available_add_ons(
    "XBaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
).fetch()

print(available_add_on.sid)
```

```csharp
// Install the C# / .NET helper library from twilio.com/docs/csharp/install

using System;
using Twilio;
using Twilio.Rest.Marketplace.V1;
using System.Threading.Tasks;

class Program {
    public static async Task Main(string[] args) {
        // Find your Account SID at twilio.com/console
        // Provision API Keys at twilio.com/console/runtime/api-keys
        // and set the environment variables. See http://twil.io/secure
        // For local testing, you can use your Account SID and Auth token
        string apiKey = Environment.GetEnvironmentVariable("TWILIO_API_KEY");
        string apiSecret = Environment.GetEnvironmentVariable("TWILIO_API_SECRET");
        string accountSid = Environment.GetEnvironmentVariable("TWILIO_ACCOUNT_SID");

        TwilioClient.Init(apiKey, apiSecret, accountSid);

        var availableAddOn =
            await AvailableAddOnResource.FetchAsync(pathSid: "XBaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa");

        Console.WriteLine(availableAddOn.Sid);
    }
}
```

```java
// Install the Java helper library from twilio.com/docs/java/install

import com.twilio.Twilio;
import com.twilio.rest.marketplace.v1.AvailableAddOn;

public class Example {
    // Find your Account SID at twilio.com/console
    // Provision API Keys at twilio.com/console/runtime/api-keys
    // and set the environment variables. See http://twil.io/secure
    // For local testing, you can use your Account SID and Auth token
    public static final String API_KEY = System.getenv("TWILIO_API_KEY");
    public static final String API_SECRET = System.getenv("TWILIO_API_SECRET");
    public static final String ACCOUNT_SID = System.getenv("TWILIO_ACCOUNT_SID");

    public static void main(String[] args) {
        Twilio.init(API_KEY, API_SECRET, ACCOUNT_SID);
        AvailableAddOn availableAddOn = AvailableAddOn.fetcher("XBaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa").fetch();

        System.out.println(availableAddOn.getSid());
    }
}
```

```go
// Download the helper library from https://www.twilio.com/docs/go/install
package main

import (
	"fmt"
	"github.com/twilio/twilio-go"
	"os"
)

func main() {
	// Find your Account SID at twilio.com/console
	// Provision API Keys at twilio.com/console/runtime/api-keys
	// and set the environment variables. See http://twil.io/secure
	// For local testing, you can use your Account SID and Auth token
	accountSid := os.Getenv("TWILIO_ACCOUNT_SID")
	apiKey := os.Getenv("TWILIO_API_KEY")
	apiSecret := os.Getenv("TWILIO_API_SECRET")
	client := twilio.NewRestClientWithParams(twilio.ClientParams{
		Username:   apiKey,
		Password:   apiSecret,
		AccountSid: accountSid,
	})

	resp, err := client.MarketplaceV1.FetchAvailableAddOn("XBaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa")
	if err != nil {
		fmt.Println(err.Error())
		os.Exit(1)
	} else {
		if resp.Sid != nil {
			fmt.Println(*resp.Sid)
		} else {
			fmt.Println(resp.Sid)
		}
	}
}
```

```php
<?php

// Update the path below to your autoload.php,
// see https://getcomposer.org/doc/01-basic-usage.md
require_once "/path/to/vendor/autoload.php";

use Twilio\Rest\Client;

// Find your Account SID at twilio.com/console
// Provision API Keys at twilio.com/console/runtime/api-keys
// and set the environment variables. See http://twil.io/secure
// For local testing, you can use your Account SID and Auth token
$apiKey = $_ENV["TWILIO_API_KEY"];
$apiSecret = $_ENV["TWILIO_API_SECRET"];
$sid = $_ENV["TWILIO_ACCOUNT_SID"];
$twilio = new Client($apiKey, $apiSecret, $sid);

$available_add_on = $twilio->marketplace->v1
    ->availableAddOns("XBaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa")
    ->fetch();

print $available_add_on->sid;
```

```ruby
# Download the helper library from https://www.twilio.com/docs/ruby/install
require 'twilio-ruby'

# Find your Account SID at twilio.com/console
# Provision API Keys at twilio.com/console/runtime/api-keys
# and set the environment variables. See http://twil.io/secure
# For local testing, you can use your Account SID and Auth token
api_key = ENV['TWILIO_API_KEY']
api_secret = ENV['TWILIO_API_SECRET']
account_sid = ENV['TWILIO_ACCOUNT_SID']
@client = Twilio::REST::Client.new(api_key, api_secret, account_sid)

available_add_on = @client
                   .marketplace
                   .v1
                   .available_add_ons('XBaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa')
                   .fetch

puts available_add_on.sid
```

```bash
# Install the twilio-cli from https://twil.io/cli

twilio api:marketplace:v1:available-add-ons:fetch \
   --sid XBaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
```

```bash
curl -X GET "https://marketplace.twilio.com/v1/AvailableAddOns/XBaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" \
-u $TWILIO_API_KEY:$TWILIO_API_SECRET
```

```json
{
  "sid": "XBaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
  "friendly_name": "VoiceBase High Accuracy Transcription",
  "description": "Automatic Transcription and Keyword Extract...",
  "pricing_type": "per minute",
  "configuration_schema": {
    "type": "object",
    "properties": {
      "bad_words": {
        "type": "boolean"
      }
    },
    "required": [
      "bad_words"
    ]
  },
  "url": "https://marketplace.twilio.com/v1/AvailableAddOns/XBaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
  "links": {
    "extensions": "https://marketplace.twilio.com/v1/AvailableAddOns/XBaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/Extensions"
  }
}
```

## List all AvailableAddOn resources

`GET https://marketplace.twilio.com/v1/AvailableAddOns`

### Query parameters

```json
[{"name":"PageSize","in":"query","description":"How many resources to return in each list page. The default is 50, and the maximum is 1000.","schema":{"type":"integer","minimum":1,"maximum":1000}},{"name":"Page","in":"query","description":"The page index. This value is simply for client state.","schema":{"type":"integer","minimum":0}},{"name":"PageToken","in":"query","description":"The page token. This is provided by the API.","schema":{"type":"string"}}]
```

List all AvailableAddOn resources

```js
// Download the helper library from https://www.twilio.com/docs/node/install
const twilio = require("twilio"); // Or, for ESM: import twilio from "twilio";

// Find your Account SID at twilio.com/console
// Provision API Keys at twilio.com/console/runtime/api-keys
// and set the environment variables. See http://twil.io/secure
// For local testing, you can use your Account SID and Auth token
const accountSid = process.env.TWILIO_ACCOUNT_SID;
const apiKey = process.env.TWILIO_API_KEY;
const apiSecret = process.env.TWILIO_API_SECRET;
const client = twilio(apiKey, apiSecret, { accountSid: accountSid });

async function listAvailableAddOn() {
  const availableAddOns = await client.marketplace.v1.availableAddOns.list({
    limit: 20,
  });

  availableAddOns.forEach((a) => console.log(a.sid));
}

listAvailableAddOn();
```

```python
# Download the helper library from https://www.twilio.com/docs/python/install
import os
from twilio.rest import Client

# Find your Account SID at twilio.com/console
# Provision API Keys at twilio.com/console/runtime/api-keys
# and set the environment variables. See http://twil.io/secure
# For local testing, you can use your Account SID and Auth token
api_key = os.environ["TWILIO_API_KEY"]
api_secret = os.environ["TWILIO_API_SECRET"]
account_sid = os.environ["TWILIO_ACCOUNT_SID"]
client = Client(api_key, api_secret, account_sid)

available_add_ons = client.marketplace.v1.available_add_ons.list(limit=20)

for record in available_add_ons:
    print(record.sid)
```

```csharp
// Install the C# / .NET helper library from twilio.com/docs/csharp/install

using System;
using Twilio;
using Twilio.Rest.Marketplace.V1;
using System.Threading.Tasks;

class Program {
    public static async Task Main(string[] args) {
        // Find your Account SID at twilio.com/console
        // Provision API Keys at twilio.com/console/runtime/api-keys
        // and set the environment variables. See http://twil.io/secure
        // For local testing, you can use your Account SID and Auth token
        string apiKey = Environment.GetEnvironmentVariable("TWILIO_API_KEY");
        string apiSecret = Environment.GetEnvironmentVariable("TWILIO_API_SECRET");
        string accountSid = Environment.GetEnvironmentVariable("TWILIO_ACCOUNT_SID");

        TwilioClient.Init(apiKey, apiSecret, accountSid);

        var availableAddOns = await AvailableAddOnResource.ReadAsync(limit: 20);

        foreach (var record in availableAddOns) {
            Console.WriteLine(record.Sid);
        }
    }
}
```

```java
// Install the Java helper library from twilio.com/docs/java/install

import com.twilio.Twilio;
import com.twilio.rest.marketplace.v1.AvailableAddOn;
import com.twilio.base.ResourceSet;

public class Example {
    // Find your Account SID at twilio.com/console
    // Provision API Keys at twilio.com/console/runtime/api-keys
    // and set the environment variables. See http://twil.io/secure
    // For local testing, you can use your Account SID and Auth token
    public static final String API_KEY = System.getenv("TWILIO_API_KEY");
    public static final String API_SECRET = System.getenv("TWILIO_API_SECRET");
    public static final String ACCOUNT_SID = System.getenv("TWILIO_ACCOUNT_SID");

    public static void main(String[] args) {
        Twilio.init(API_KEY, API_SECRET, ACCOUNT_SID);
        ResourceSet<AvailableAddOn> availableAddOns = AvailableAddOn.reader().limit(20).read();

        for (AvailableAddOn record : availableAddOns) {
            System.out.println(record.getSid());
        }
    }
}
```

```go
// Download the helper library from https://www.twilio.com/docs/go/install
package main

import (
	"fmt"
	"github.com/twilio/twilio-go"
	marketplace "github.com/twilio/twilio-go/rest/marketplace/v1"
	"os"
)

func main() {
	// Find your Account SID at twilio.com/console
	// Provision API Keys at twilio.com/console/runtime/api-keys
	// and set the environment variables. See http://twil.io/secure
	// For local testing, you can use your Account SID and Auth token
	accountSid := os.Getenv("TWILIO_ACCOUNT_SID")
	apiKey := os.Getenv("TWILIO_API_KEY")
	apiSecret := os.Getenv("TWILIO_API_SECRET")
	client := twilio.NewRestClientWithParams(twilio.ClientParams{
		Username:   apiKey,
		Password:   apiSecret,
		AccountSid: accountSid,
	})

	params := &marketplace.ListAvailableAddOnParams{}
	params.SetLimit(20)

	resp, err := client.MarketplaceV1.ListAvailableAddOn(params)
	if err != nil {
		fmt.Println(err.Error())
		os.Exit(1)
	} else {
		for record := range resp {
			if resp[record].Sid != nil {
				fmt.Println(*resp[record].Sid)
			} else {
				fmt.Println(resp[record].Sid)
			}
		}
	}
}
```

```php
<?php

// Update the path below to your autoload.php,
// see https://getcomposer.org/doc/01-basic-usage.md
require_once "/path/to/vendor/autoload.php";

use Twilio\Rest\Client;

// Find your Account SID at twilio.com/console
// Provision API Keys at twilio.com/console/runtime/api-keys
// and set the environment variables. See http://twil.io/secure
// For local testing, you can use your Account SID and Auth token
$apiKey = $_ENV["TWILIO_API_KEY"];
$apiSecret = $_ENV["TWILIO_API_SECRET"];
$sid = $_ENV["TWILIO_ACCOUNT_SID"];
$twilio = new Client($apiKey, $apiSecret, $sid);

$availableAddOns = $twilio->marketplace->v1->availableAddOns->read(20);

foreach ($availableAddOns as $record) {
    print $record->sid;
}
```

```ruby
# Download the helper library from https://www.twilio.com/docs/ruby/install
require 'twilio-ruby'

# Find your Account SID at twilio.com/console
# Provision API Keys at twilio.com/console/runtime/api-keys
# and set the environment variables. See http://twil.io/secure
# For local testing, you can use your Account SID and Auth token
api_key = ENV['TWILIO_API_KEY']
api_secret = ENV['TWILIO_API_SECRET']
account_sid = ENV['TWILIO_ACCOUNT_SID']
@client = Twilio::REST::Client.new(api_key, api_secret, account_sid)

available_add_ons = @client
                    .marketplace
                    .v1
                    .available_add_ons
                    .list(limit: 20)

available_add_ons.each do |record|
   puts record.sid
end
```

```bash
# Install the twilio-cli from https://twil.io/cli

twilio api:marketplace:v1:available-add-ons:list
```

```bash
curl -X GET "https://marketplace.twilio.com/v1/AvailableAddOns?PageSize=20" \
-u $TWILIO_API_KEY:$TWILIO_API_SECRET
```

```json
{
  "available_add_ons": [
    {
      "sid": "XBaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
      "friendly_name": "VoiceBase High Accuracy Transcription",
      "description": "Automatic Transcription and Keyword Extract...",
      "pricing_type": "per minute",
      "configuration_schema": {
        "type": "object",
        "properties": {
          "bad_words": {
            "type": "boolean"
          }
        },
        "required": [
          "bad_words"
        ]
      },
      "url": "https://marketplace.twilio.com/v1/AvailableAddOns/XBaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
      "links": {
        "extensions": "https://marketplace.twilio.com/v1/AvailableAddOns/XBaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/Extensions"
      }
    }
  ],
  "meta": {
    "page": 0,
    "page_size": 50,
    "first_page_url": "https://marketplace.twilio.com/v1/AvailableAddOns?PageSize=50&Page=0",
    "previous_page_url": null,
    "url": "https://marketplace.twilio.com/v1/AvailableAddOns?PageSize=50&Page=0",
    "next_page_url": null,
    "key": "available_add_ons"
  }
}
```