Apps

This API lets you manage and interact with Zendesk apps. All actions from these endpoints are recorded in the Audit Log console of the affected Zendesk Support account.

To learn more about the process of creating and managing apps using the Apps REST API described on this page, see Creating and managing private apps

JSON format

Apps are represented as JSON objects with the following properties:

Name	Type	Read-only	Mandatory	Description
app_organization	object	true	false	Organization that submitted the app to the Zendesk Marketplace
author_email	string	true	false	The app author's email
author_name	string	true	false	The app author's name
author_url	string	true	false	The app author's URL
categories	array	true	false	Zendesk Marketplace categories to which the app belongs
collections	array	true	false	Zendesk Marketplace collections to which the app belongs
created_at	string	true	false	When the app was created
date_published	string	true	false	When the app was published on the Zendesk Marketplace
default_locale	string	true	false	The default locale for translations for the app
deprecated	boolean	true	false	If true, the app is deprecated
feature_color	string	true	false	Hexadecimal color value used to feature the app on the Zendesk Marketplace
featured	boolean	true	false	Whether or not the app is featured in the Zendesk Marketplace
framework_version	string	true	false	The app framework version for which the app was written
google_analytics_code	string	true	false	Universal Google Analytics ("UA-") tracking id for the app's detail page on the Zendesk Marketplace
id	integer	true	false	The id of the app
installable	boolean	true	false	Whether or not the app can be installed
installation_count	integer	true	false	Current number of installations of the app
installation_instructions	string	true	false	Instructions for installing the app
large_icon	string	true	false	The large icon url for an app
locations	array	true	false	Location ids for the app. To map these ids to app locations, see the App Locations endpoint
long_description	string	true	false	The app's long description in the Zendesk Marketplace
marketing_only	boolean	true	false	If true, the app is an integration app
name	string	true	false	The name of the app
obsolete	boolean	true	false	If true, the app is obsolete
owner_id	integer	true	false	The app developer id corresponding to the app
paid	boolean	true	false	If true, the app is a paid app
parameters	array	true	false	The parameters for the app
plans	array	true	false	Payment plans for the app
products	array	true	false	Zendesk products supported by the app
promoted	boolean	true	false	Whether or not the app is a promoted app in the Zendesk Marketplace
rating	object	true	false	The ratings of the app
raw_installation_instructions	string	true	false	The raw installation instructions
raw_long_description	string	true	false	The raw long description for the app in the Zendesk Marketplace
remote_installation_url	string	true	false	URL for the app's installation instructions
screenshots	array	true	false	Screenshots for the app when displayed in the Zendesk Marketplace
short_description	string	true	false	The short description of the app in the Zendesk Marketplace
single_install	boolean	true	false	Whether or not this app can only be installed once
small_icon	string	true	false	The url for the small logo for the app
state	string	true	false	Publication state for the app on the Zendesk Marketplace
stripe_publishable_key	string	true	false	Publishable key for the app developer's Stripe account
terms_conditions_url	string	true	false	URL for the app's terms and conditions
third_party_pricing	object	true	false	Third-party pricing information for the app
updated_at	string	true	false	When the app was last updated
version	string	true	false	The version of the app
visibility	string	true	false	The app is a private app, which is only visible to your account, or a public app. An example value is "private".

List All Apps

• GET /api/v2/apps

Lists all public apps on the Zendesk Marketplace. For authenticated agents and admins, the endpoint also lists their account's private apps.

Allowed For

• Everyone

Code Samples

curl

curl https://{subdomain}.zendesk.com/api/v2/apps.json \
  -u {email_address}/token:{api_token}

Go

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

func main() {
	url := "https://support.zendesk.com/api/v2/apps"
	method := "GET"
	req, err := http.NewRequest(method, url, nil)

	if err != nil {
		fmt.Println(err)
		return
	}
	req.Header.Add("Content-Type", "application/json")
	req.Header.Add("Authorization", "Basic <auth-value>") // Base64 encoded "{email_address}/token:{api_token}"

	client := &http.Client {}
	res, err := client.Do(req)
	if err != nil {
		fmt.Println(err)
		return
	}
	defer res.Body.Close()

	body, err := io.ReadAll(res.Body)
	if err != nil {
		fmt.Println(err)
		return
	}
	fmt.Println(string(body))
}

Java

import com.squareup.okhttp.*;
OkHttpClient client = new OkHttpClient();
HttpUrl.Builder urlBuilder = HttpUrl.parse("https://support.zendesk.com/api/v2/apps")
		.newBuilder();
String userCredentials = "your_email_address" + "/token:" + "your_api_token";
String basicAuth = "Basic " + java.util.Base64.getEncoder().encodeToString(userCredentials.getBytes());

Request request = new Request.Builder()
		.url(urlBuilder.build())
		.method("GET", null)
		.addHeader("Content-Type", "application/json")
		.addHeader("Authorization", basicAuth)
		.build();
Response response = client.newCall(request).execute();

Nodejs

var axios = require('axios');

var config = {
  method: 'GET',
  url: 'https://support.zendesk.com/api/v2/apps',
  headers: {
	'Content-Type': 'application/json',
	'Authorization': 'Basic <auth-value>', // Base64 encoded "{email_address}/token:{api_token}"
  },
};

axios(config)
.then(function (response) {
  console.log(JSON.stringify(response.data));
})
.catch(function (error) {
  console.log(error);
});

Python

import requests
from requests.auth import HTTPBasicAuth

url = "https://support.zendesk.com/api/v2/apps"
headers = {
	"Content-Type": "application/json",
}
email_address = 'your_email_address'
api_token = 'your_api_token'
# Use basic authentication
auth = HTTPBasicAuth(f'{email_address}/token', api_token)

response = requests.request(
	"GET",
	url,
	auth=auth,
	headers=headers
)

print(response.text)

Ruby

require "net/http"
require "base64"
uri = URI("https://support.zendesk.com/api/v2/apps")
request = Net::HTTP::Get.new(uri, "Content-Type": "application/json")
email = "your_email_address"
api_token = "your_api_token"
credentials = "#{email}/token:#{api_token}"
encoded_credentials = Base64.strict_encode64(credentials)
request["Authorization"] = "Basic #{encoded_credentials}"
response = Net::HTTP.start uri.hostname, uri.port, use_ssl: true do |http|
	http.request(request)
end

Example response(s)

200 OK

// Status 200 OK

{
  "apps": [
    {
      "app_organization": {
        "country_code": "US",
        "email": "[email protected]",
        "id": 123,
        "name": "Acme",
        "stripe_account_id": null,
        "website": "https://example.com"
      },
      "author_email": "[email protected]",
      "author_name": "Zendesk User",
      "author_url": "https://example.com",
      "categories": [],
      "collections": [],
      "created_at": "2012-05-14T22:28:18Z",
      "date_published": "2016-10-26T22:26:18Z",
      "default_locale": "en",
      "deprecated": false,
      "feature_color": null,
      "featured": false,
      "framework_version": "2.0",
      "google_analytics_code": null,
      "id": 12345,
      "installable": true,
      "installation_count": 1234,
      "installation_instructions": "",
      "large_icon": "/api/v2/apps/12345/assets/logo.png",
      "locations": [
        7,
        2,
        1,
        3,
        4,
        5,
        6,
        10,
        8,
        19,
        17,
        15,
        18,
        16,
        25,
        22,
        23,
        24
      ],
      "long_description": "",
      "marketing_only": false,
      "name": "Bookmarks",
      "obsolete": false,
      "owner_id": 1,
      "paid": false,
      "parameters": [
        {
          "app_id": 12345,
          "created_at": "2012-06-14T17:31:08Z",
          "default_value": null,
          "id": 21,
          "kind": "text",
          "name": "name",
          "position": 0,
          "required": true,
          "secure": true,
          "updated_at": "2012-06-14T17:31:08Z"
        }
      ],
      "plans": [
        {
          "active": true,
          "amount": 0,
          "app_id": 12345,
          "cost_id": 1,
          "cost_type": "CostFree",
          "created_at": "2019-05-15T05:41:13.000Z",
          "description": "<p>This is the default plan all existing apps have. You can change the description and name of this plan, or create new ones.</p>\\n",
          "entity_id": 123456,
          "id": 123,
          "name": "Default Plan",
          "plan_type": "one_off",
          "service_identifier": null,
          "stripe_account": null,
          "stripe_plan_id": null,
          "stripe_publishable_key": null,
          "trial_days": 0,
          "updated_at": "2019-05-15T05:41:13.000Z",
          "vat_reversible": null
        }
      ],
      "products": [
        "support",
        "chat",
        "sell"
      ],
      "promoted": false,
      "rating": {
        "average": 3,
        "count": {
          "1": 2,
          "2": 2,
          "3": 2,
          "4": 2,
          "5": 2
        },
        "total_count": 10
      },
      "raw_installation_instructions": null,
      "raw_long_description": null,
      "remote_installation_url": null,
      "screenshots": [],
      "short_description": null,
      "single_install": true,
      "small_icon": "/api/v2/apps/12345/assets/logo-small.png",
      "state": "published",
      "stripe_publishable_key": null,
      "terms_conditions_url": null,
      "third_party_pricing": {
        "has_third_party_pricing": false,
        "third_party_pricing_url": null
      },
      "updated_at": "2014-01-21T00:32:03Z",
      "version": "1.0",
      "visibility": "private"
    }
  ]
}

List Owned Apps

• GET /api/v2/apps/owned

Lists apps owned by the current account.

Allowed For

• Admins

Sideloads

The categories and parameters objects are automatically side-loaded with each app object. However, you can exclude them from the response. Example:

curl https://{subdomain}.zendesk.com/api/v2/apps/owned.json?exclude=parameters \
 -u {email_address}/token:{api_token}

Code Samples

curl

curl https://{subdomain}.zendesk.com/api/v2/apps/owned.json \
  -u {email_address}/token:{api_token}

Go

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

func main() {
	url := "https://support.zendesk.com/api/v2/apps/owned"
	method := "GET"
	req, err := http.NewRequest(method, url, nil)

	if err != nil {
		fmt.Println(err)
		return
	}
	req.Header.Add("Content-Type", "application/json")
	req.Header.Add("Authorization", "Basic <auth-value>") // Base64 encoded "{email_address}/token:{api_token}"

	client := &http.Client {}
	res, err := client.Do(req)
	if err != nil {
		fmt.Println(err)
		return
	}
	defer res.Body.Close()

	body, err := io.ReadAll(res.Body)
	if err != nil {
		fmt.Println(err)
		return
	}
	fmt.Println(string(body))
}

Java

import com.squareup.okhttp.*;
OkHttpClient client = new OkHttpClient();
HttpUrl.Builder urlBuilder = HttpUrl.parse("https://support.zendesk.com/api/v2/apps/owned")
		.newBuilder();
String userCredentials = "your_email_address" + "/token:" + "your_api_token";
String basicAuth = "Basic " + java.util.Base64.getEncoder().encodeToString(userCredentials.getBytes());

Request request = new Request.Builder()
		.url(urlBuilder.build())
		.method("GET", null)
		.addHeader("Content-Type", "application/json")
		.addHeader("Authorization", basicAuth)
		.build();
Response response = client.newCall(request).execute();

Nodejs

var axios = require('axios');

var config = {
  method: 'GET',
  url: 'https://support.zendesk.com/api/v2/apps/owned',
  headers: {
	'Content-Type': 'application/json',
	'Authorization': 'Basic <auth-value>', // Base64 encoded "{email_address}/token:{api_token}"
  },
};

axios(config)
.then(function (response) {
  console.log(JSON.stringify(response.data));
})
.catch(function (error) {
  console.log(error);
});

Python

import requests
from requests.auth import HTTPBasicAuth

url = "https://support.zendesk.com/api/v2/apps/owned"
headers = {
	"Content-Type": "application/json",
}
email_address = 'your_email_address'
api_token = 'your_api_token'
# Use basic authentication
auth = HTTPBasicAuth(f'{email_address}/token', api_token)

response = requests.request(
	"GET",
	url,
	auth=auth,
	headers=headers
)

print(response.text)

Ruby

require "net/http"
require "base64"
uri = URI("https://support.zendesk.com/api/v2/apps/owned")
request = Net::HTTP::Get.new(uri, "Content-Type": "application/json")
email = "your_email_address"
api_token = "your_api_token"
credentials = "#{email}/token:#{api_token}"
encoded_credentials = Base64.strict_encode64(credentials)
request["Authorization"] = "Basic #{encoded_credentials}"
response = Net::HTTP.start uri.hostname, uri.port, use_ssl: true do |http|
	http.request(request)
end

Example response(s)

200 OK

// Status 200 OK

{
  "apps": [
    {
      "author_email": "[email protected]",
      "author_name": "Zendesk User",
      "author_url": "http://www.example.com",
      "categories": [],
      "closed_preview": false,
      "created_at": "2012-05-14T22:28:18Z",
      "default_locale": "en",
      "deprecated": false,
      "feature_color": null,
      "featured": false,
      "framework_version": "1.0",
      "google_analytics_code": null,
      "id": 12345,
      "installable": true,
      "installation_instructions": "",
      "large_icon": "/api/v2/apps/12345/assets/logo.png",
      "long_description": "",
      "marketing_only": false,
      "name": "Bookmarks",
      "obsolete": false,
      "owner_id": 1,
      "paid": false,
      "parameters": [
        {
          "app_id": 12345,
          "created_at": "2012-06-14T17:31:08Z",
          "default_value": null,
          "id": 21,
          "kind": "text",
          "name": "name",
          "position": 0,
          "required": true,
          "secure": true,
          "updated_at": "2012-06-14T17:31:08Z"
        }
      ],
      "products": [
        "support",
        "chat",
        "sell"
      ],
      "promoted": false,
      "raw_installation_instructions": null,
      "raw_long_description": null,
      "remote_installation_url": null,
      "screenshots": [],
      "short_description": null,
      "single_install": true,
      "small_icon": "/api/v2/apps/12345/assets/logo-small.png",
      "state": "published",
      "terms_conditions_url": null,
      "updated_at": "2014-01-21T00:32:03Z",
      "version": "1.0",
      "visibility": "private"
    }
  ]
}

Get Information About App

• GET /api/v2/apps/{app_id}

Retrieves information about the specified app accessible to the current user and account.

Allowed For

• Everyone

Parameters

Name	Type	In	Required	Description
app_id	integer	Path	true	The ID of the app to be retrieved

Code Samples

curl

curl https://{subdomain}.zendesk.com/api/v2/apps/{app_id}.json \
  -v -u {email_address}/token:{api_token}

Go

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

func main() {
	url := "https://support.zendesk.com/api/v2/apps/1"
	method := "GET"
	req, err := http.NewRequest(method, url, nil)

	if err != nil {
		fmt.Println(err)
		return
	}
	req.Header.Add("Content-Type", "application/json")
	req.Header.Add("Authorization", "Basic <auth-value>") // Base64 encoded "{email_address}/token:{api_token}"

	client := &http.Client {}
	res, err := client.Do(req)
	if err != nil {
		fmt.Println(err)
		return
	}
	defer res.Body.Close()

	body, err := io.ReadAll(res.Body)
	if err != nil {
		fmt.Println(err)
		return
	}
	fmt.Println(string(body))
}

Java

import com.squareup.okhttp.*;
OkHttpClient client = new OkHttpClient();
HttpUrl.Builder urlBuilder = HttpUrl.parse("https://support.zendesk.com/api/v2/apps/1")
		.newBuilder();
String userCredentials = "your_email_address" + "/token:" + "your_api_token";
String basicAuth = "Basic " + java.util.Base64.getEncoder().encodeToString(userCredentials.getBytes());

Request request = new Request.Builder()
		.url(urlBuilder.build())
		.method("GET", null)
		.addHeader("Content-Type", "application/json")
		.addHeader("Authorization", basicAuth)
		.build();
Response response = client.newCall(request).execute();

Nodejs

var axios = require('axios');

var config = {
  method: 'GET',
  url: 'https://support.zendesk.com/api/v2/apps/1',
  headers: {
	'Content-Type': 'application/json',
	'Authorization': 'Basic <auth-value>', // Base64 encoded "{email_address}/token:{api_token}"
  },
};

axios(config)
.then(function (response) {
  console.log(JSON.stringify(response.data));
})
.catch(function (error) {
  console.log(error);
});

Python

import requests
from requests.auth import HTTPBasicAuth

url = "https://support.zendesk.com/api/v2/apps/1"
headers = {
	"Content-Type": "application/json",
}
email_address = 'your_email_address'
api_token = 'your_api_token'
# Use basic authentication
auth = HTTPBasicAuth(f'{email_address}/token', api_token)

response = requests.request(
	"GET",
	url,
	auth=auth,
	headers=headers
)

print(response.text)

Ruby

require "net/http"
require "base64"
uri = URI("https://support.zendesk.com/api/v2/apps/1")
request = Net::HTTP::Get.new(uri, "Content-Type": "application/json")
email = "your_email_address"
api_token = "your_api_token"
credentials = "#{email}/token:#{api_token}"
encoded_credentials = Base64.strict_encode64(credentials)
request["Authorization"] = "Basic #{encoded_credentials}"
response = Net::HTTP.start uri.hostname, uri.port, use_ssl: true do |http|
	http.request(request)
end

Example response(s)

200 OK

// Status 200 OK

{
  "author_email": "[email protected]",
  "author_name": "Zendesk User",
  "author_url": "http://www.example.com",
  "categories": [],
  "closed_preview": false,
  "created_at": "2012-05-14T22:28:18Z",
  "default_locale": "en",
  "deprecated": false,
  "feature_color": null,
  "featured": false,
  "framework_version": "2.0",
  "google_analytics_code": null,
  "id": 12345,
  "installable": true,
  "installation_instructions": "",
  "large_icon": "/api/v2/apps/12345/assets/logo.png",
  "long_description": "",
  "marketing_only": false,
  "name": "Bookmarks",
  "obsolete": false,
  "owner_id": 1,
  "paid": false,
  "parameters": [
    {
      "app_id": 12345,
      "created_at": "2012-06-14T17:31:08Z",
      "default_value": null,
      "id": 21,
      "kind": "text",
      "name": "name",
      "position": 0,
      "required": true,
      "secure": true,
      "updated_at": "2012-06-14T17:31:08Z"
    }
  ],
  "products": [
    "support",
    "chat",
    "sell"
  ],
  "promoted": false,
  "raw_installation_instructions": null,
  "raw_long_description": null,
  "remote_installation_url": null,
  "screenshots": [],
  "short_description": null,
  "single_install": true,
  "small_icon": "/api/v2/apps/12345/assets/logo-small.png",
  "state": "published",
  "terms_conditions_url": null,
  "updated_at": "2014-01-21T00:32:03Z",
  "version": "1.0",
  "visibility": "private"
}

Get App Public Key

• GET /api/v2/apps/{app_id}/public_key

Reveals the app's public key in PEM format.

You can use it to verify that certain requests from the app are legitimate.

Allowed For

• Agents

Parameters

Name	Type	In	Required	Description
app_id	integer	Path	true	The ID of the app

Code Samples

curl

curl https://{subdomain}.zendesk.com/api/v2/apps/{app_id}/public_key.pem \
  -u {email_address}/token:{api_token}

Go

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

func main() {
	url := "https://support.zendesk.com/api/v2/apps/1/public_key"
	method := "GET"
	req, err := http.NewRequest(method, url, nil)

	if err != nil {
		fmt.Println(err)
		return
	}
	req.Header.Add("Content-Type", "application/json")
	req.Header.Add("Authorization", "Basic <auth-value>") // Base64 encoded "{email_address}/token:{api_token}"

	client := &http.Client {}
	res, err := client.Do(req)
	if err != nil {
		fmt.Println(err)
		return
	}
	defer res.Body.Close()

	body, err := io.ReadAll(res.Body)
	if err != nil {
		fmt.Println(err)
		return
	}
	fmt.Println(string(body))
}

Java

import com.squareup.okhttp.*;
OkHttpClient client = new OkHttpClient();
HttpUrl.Builder urlBuilder = HttpUrl.parse("https://support.zendesk.com/api/v2/apps/1/public_key")
		.newBuilder();
String userCredentials = "your_email_address" + "/token:" + "your_api_token";
String basicAuth = "Basic " + java.util.Base64.getEncoder().encodeToString(userCredentials.getBytes());

Request request = new Request.Builder()
		.url(urlBuilder.build())
		.method("GET", null)
		.addHeader("Content-Type", "application/json")
		.addHeader("Authorization", basicAuth)
		.build();
Response response = client.newCall(request).execute();

Nodejs

var axios = require('axios');

var config = {
  method: 'GET',
  url: 'https://support.zendesk.com/api/v2/apps/1/public_key',
  headers: {
	'Content-Type': 'application/json',
	'Authorization': 'Basic <auth-value>', // Base64 encoded "{email_address}/token:{api_token}"
  },
};

axios(config)
.then(function (response) {
  console.log(JSON.stringify(response.data));
})
.catch(function (error) {
  console.log(error);
});

Python

import requests
from requests.auth import HTTPBasicAuth

url = "https://support.zendesk.com/api/v2/apps/1/public_key"
headers = {
	"Content-Type": "application/json",
}
email_address = 'your_email_address'
api_token = 'your_api_token'
# Use basic authentication
auth = HTTPBasicAuth(f'{email_address}/token', api_token)

response = requests.request(
	"GET",
	url,
	auth=auth,
	headers=headers
)

print(response.text)

Ruby

require "net/http"
require "base64"
uri = URI("https://support.zendesk.com/api/v2/apps/1/public_key")
request = Net::HTTP::Get.new(uri, "Content-Type": "application/json")
email = "your_email_address"
api_token = "your_api_token"
credentials = "#{email}/token:#{api_token}"
encoded_credentials = Base64.strict_encode64(credentials)
request["Authorization"] = "Basic #{encoded_credentials}"
response = Net::HTTP.start uri.hostname, uri.port, use_ssl: true do |http|
	http.request(request)
end

Example response(s)

200 OK

// Status 200 OK

"-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA6Z6U0KVY2HstBHKDiNIx\nFoxzkhhMjvyB3LiBWLqre+H1rHiqZl3Q3oQ1+61qNyBBulu+6hr1GkkIVVEHBnfe\n9OO+u2F9UAMi6JMl2L7QaaTxa+fR8ADNRNmg+5vsdKq/+nNTf2EA2ynwpwt/F5yp\nmKg6n8jhy0eqsea4qKpYLLEE6AguR04KXgQymb0Mg0PQsNowpFCoLTg3IXZGCIVE\nztOfgYaYPOVwGr3pN71L4cW5euyKPl36tpp42iHyuJ3mP3q2d7GPfLwUoLNsDZYQ\nZ8vcOkvkA7N0tZUDqIzofKGwsjk/++LYBFL04Qbj3avRHcouo70q13Lb+k4rm20u\nlwIDAQAB\n-----END PUBLIC KEY-----\n"

Create App

• POST /api/v2/apps

Adds a build of a new app to the job queue.

You must provide an upload_id in the post payload to this endpoint in order to specify the uploaded app package to use for the build. See Upload App Package.

The response contains a job_id to check the status of the build. See Get Job Status.

Allowed For

• Admins

Code Samples

curl

curl https://{subdomain}.zendesk.com/api/v2/apps.json \
  -d '{"name":"My App", "short_description":"My App description", "upload_id":"123"}' \
  -H "Content-Type: application/json" -X POST \
  -u {email_address}/token:{api_token}

Go

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

func main() {
	url := "https://support.zendesk.com/api/v2/apps"
	method := "POST"
	req, err := http.NewRequest(method, url, nil)

	if err != nil {
		fmt.Println(err)
		return
	}
	req.Header.Add("Content-Type", "application/json")
	req.Header.Add("Authorization", "Basic <auth-value>") // Base64 encoded "{email_address}/token:{api_token}"

	client := &http.Client {}
	res, err := client.Do(req)
	if err != nil {
		fmt.Println(err)
		return
	}
	defer res.Body.Close()

	body, err := io.ReadAll(res.Body)
	if err != nil {
		fmt.Println(err)
		return
	}
	fmt.Println(string(body))
}

Java

import com.squareup.okhttp.*;
OkHttpClient client = new OkHttpClient();
HttpUrl.Builder urlBuilder = HttpUrl.parse("https://support.zendesk.com/api/v2/apps")
		.newBuilder();
RequestBody body = RequestBody.create(MediaType.parse("application/json"),
		"""
""");
String userCredentials = "your_email_address" + "/token:" + "your_api_token";
String basicAuth = "Basic " + java.util.Base64.getEncoder().encodeToString(userCredentials.getBytes());

Request request = new Request.Builder()
		.url(urlBuilder.build())
		.method("POST", body)
		.addHeader("Content-Type", "application/json")
		.addHeader("Authorization", basicAuth)
		.build();
Response response = client.newCall(request).execute();

Nodejs

var axios = require('axios');

var config = {
  method: 'POST',
  url: 'https://support.zendesk.com/api/v2/apps',
  headers: {
	'Content-Type': 'application/json',
	'Authorization': 'Basic <auth-value>', // Base64 encoded "{email_address}/token:{api_token}"