Twilio - Voice

twilio · Company

Company No Auth Free & Open telecom messaging Sandbox

This is the public Twilio REST API.

Authentication

No authentication requiredFree to use with no key needed.

Sample Requests

GET ListDialingPermissionsCountry

Retrieve all voice dialing country permissions for this account

https://api.apis.guru/v2/specs/twilio.com/twilio_voice_v1/1.42.0/v1/DialingPermissions/Countries?Page=1&IsoCode=example&PageSize=1&Continent=example&PageToken=example&CountryCode=example&LowRiskNumbersEnabled=true&HighRiskSpecialNumbersEnabled=true&HighRiskTollfraudNumbersEnabled=true

Hover any highlighted part to learn what it does

curl -X GET "https://api.apis.guru/v2/specs/twilio.com/twilio_voice_v1/1.42.0/v1/DialingPermissions/Countries?Page=1&IsoCode=example&PageSize=1&Continent=example&PageToken=example&CountryCode=example&LowRiskNumbersEnabled=true&HighRiskSpecialNumbersEnabled=true&HighRiskTollfraudNumbersEnabled=true"

import requests
params = {
    "Page": "1",
    "IsoCode": "example",
    "PageSize": "1",
    "Continent": "example",
    "PageToken": "example",
    "CountryCode": "example",
    "LowRiskNumbersEnabled": "true",
    "HighRiskSpecialNumbersEnabled": "true",
    "HighRiskTollfraudNumbersEnabled": "true"
}
response = requests.get(
    "https://api.apis.guru/v2/specs/twilio.com/twilio_voice_v1/1.42.0/v1/DialingPermissions/Countries",
    params=params,
)
print(response.json())

const url = new URL('https://api.apis.guru/v2/specs/twilio.com/twilio_voice_v1/1.42.0/v1/DialingPermissions/Countries');
url.searchParams.set('Page', '1');
url.searchParams.set('IsoCode', 'example');
url.searchParams.set('PageSize', '1');
url.searchParams.set('Continent', 'example');
url.searchParams.set('PageToken', 'example');
url.searchParams.set('CountryCode', 'example');
url.searchParams.set('LowRiskNumbersEnabled', 'true');
url.searchParams.set('HighRiskSpecialNumbersEnabled', 'true');
url.searchParams.set('HighRiskTollfraudNumbersEnabled', 'true');

const response = await fetch(url); 
const data = await response.json();
console.log(data);

package main

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

func main() {
	baseURL, _ := url.Parse("https://api.apis.guru/v2/specs/twilio.com/twilio_voice_v1/1.42.0/v1/DialingPermissions/Countries")
	q := baseURL.Query()
	q.Set("Page", "1")
	q.Set("IsoCode", "example")
	q.Set("PageSize", "1")
	q.Set("Continent", "example")
	q.Set("PageToken", "example")
	q.Set("CountryCode", "example")
	q.Set("LowRiskNumbersEnabled", "true")
	q.Set("HighRiskSpecialNumbersEnabled", "true")
	q.Set("HighRiskTollfraudNumbersEnabled", "true")
	baseURL.RawQuery = q.Encode()
	targetURL := baseURL.String()
	req, _ := http.NewRequest("GET", targetURL, nil)

	client := &http.Client{}
	resp, _ := client.Do(req)
	defer resp.Body.Close()
	body, _ := io.ReadAll(resp.Body)
	fmt.Println(string(body))
}

require "net/http"
require "json"

uri = URI("https://api.apis.guru/v2/specs/twilio.com/twilio_voice_v1/1.42.0/v1/DialingPermissions/Countries")
uri.query = URI.encode_www_form({
  "Page" => "1",
  "IsoCode" => "example",
  "PageSize" => "1",
  "Continent" => "example",
  "PageToken" => "example",
  "CountryCode" => "example",
  "LowRiskNumbersEnabled" => "true",
  "HighRiskSpecialNumbersEnabled" => "true",
  "HighRiskTollfraudNumbersEnabled" => "true"
})

http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl = uri.scheme == "https"

req = Net::HTTP::Get.new(uri)

res = http.request(req)
puts JSON.parse(res.body)

<?php
$url = "https://api.apis.guru/v2/specs/twilio.com/twilio_voice_v1/1.42.0/v1/DialingPermissions/Countries?" . http_build_query([
    "Page" => "1",
    "IsoCode" => "example",
    "PageSize" => "1",
    "Continent" => "example",
    "PageToken" => "example",
    "CountryCode" => "example",
    "LowRiskNumbersEnabled" => "true",
    "HighRiskSpecialNumbersEnabled" => "true",
    "HighRiskTollfraudNumbersEnabled" => "true"
]);
$opts = ["http" => [
    "method" => "GET",
]];
$ctx = stream_context_create($opts);
$res = file_get_contents($url, false, $ctx);
print_r(json_decode($res, true));

GET FetchDialingPermissionsSettings

Retrieve voice dialing permissions inheritance for the sub-account

https://api.apis.guru/v2/specs/twilio.com/twilio_voice_v1/1.42.0/v1/Settings

Hover any highlighted part to learn what it does

curl -X GET "https://api.apis.guru/v2/specs/twilio.com/twilio_voice_v1/1.42.0/v1/Settings"

import requests
response = requests.get(
    "https://api.apis.guru/v2/specs/twilio.com/twilio_voice_v1/1.42.0/v1/Settings",
)
print(response.json())

const url = 'https://api.apis.guru/v2/specs/twilio.com/twilio_voice_v1/1.42.0/v1/Settings';

const response = await fetch(url); 
const data = await response.json();
console.log(data);

package main

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

func main() {
	targetURL := "https://api.apis.guru/v2/specs/twilio.com/twilio_voice_v1/1.42.0/v1/Settings"
	req, _ := http.NewRequest("GET", targetURL, nil)

	client := &http.Client{}
	resp, _ := client.Do(req)
	defer resp.Body.Close()
	body, _ := io.ReadAll(resp.Body)
	fmt.Println(string(body))
}

require "net/http"
require "json"

uri = URI("https://api.apis.guru/v2/specs/twilio.com/twilio_voice_v1/1.42.0/v1/Settings")

http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl = uri.scheme == "https"

req = Net::HTTP::Get.new(uri)

res = http.request(req)
puts JSON.parse(res.body)

<?php
$url = "https://api.apis.guru/v2/specs/twilio.com/twilio_voice_v1/1.42.0/v1/Settings";
$opts = ["http" => [
    "method" => "GET",
]];
$ctx = stream_context_create($opts);
$res = file_get_contents($url, false, $ctx);
print_r(json_decode($res, true));

GET ListByocTrunk

https://api.apis.guru/v2/specs/twilio.com/twilio_voice_v1/1.42.0/v1/ByocTrunks?Page=1&PageSize=1&PageToken=example

Hover any highlighted part to learn what it does

curl -X GET "https://api.apis.guru/v2/specs/twilio.com/twilio_voice_v1/1.42.0/v1/ByocTrunks?Page=1&PageSize=1&PageToken=example"

import requests
params = {
    "Page": "1",
    "PageSize": "1",
    "PageToken": "example"
}
response = requests.get(
    "https://api.apis.guru/v2/specs/twilio.com/twilio_voice_v1/1.42.0/v1/ByocTrunks",
    params=params,
)
print(response.json())

const url = new URL('https://api.apis.guru/v2/specs/twilio.com/twilio_voice_v1/1.42.0/v1/ByocTrunks');
url.searchParams.set('Page', '1');
url.searchParams.set('PageSize', '1');
url.searchParams.set('PageToken', 'example');

const response = await fetch(url); 
const data = await response.json();
console.log(data);

package main

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

func main() {
	baseURL, _ := url.Parse("https://api.apis.guru/v2/specs/twilio.com/twilio_voice_v1/1.42.0/v1/ByocTrunks")
	q := baseURL.Query()
	q.Set("Page", "1")
	q.Set("PageSize", "1")
	q.Set("PageToken", "example")
	baseURL.RawQuery = q.Encode()
	targetURL := baseURL.String()
	req, _ := http.NewRequest("GET", targetURL, nil)

	client := &http.Client{}
	resp, _ := client.Do(req)
	defer resp.Body.Close()
	body, _ := io.ReadAll(resp.Body)
	fmt.Println(string(body))
}

require "net/http"
require "json"

uri = URI("https://api.apis.guru/v2/specs/twilio.com/twilio_voice_v1/1.42.0/v1/ByocTrunks")
uri.query = URI.encode_www_form({
  "Page" => "1",
  "PageSize" => "1",
  "PageToken" => "example"
})

http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl = uri.scheme == "https"

req = Net::HTTP::Get.new(uri)

res = http.request(req)
puts JSON.parse(res.body)

<?php
$url = "https://api.apis.guru/v2/specs/twilio.com/twilio_voice_v1/1.42.0/v1/ByocTrunks?" . http_build_query([
    "Page" => "1",
    "PageSize" => "1",
    "PageToken" => "example"
]);
$opts = ["http" => [
    "method" => "GET",
]];
$ctx = stream_context_create($opts);
$res = file_get_contents($url, false, $ctx);
print_r(json_decode($res, true));

Postman Setup Guide

Get Postman ↗

See official documentation for authentication and setup.

What can you build with Twilio - Voice?

Twilio - Voice is a Company API. Developers commonly use company APIs for:

enriching CRM records with company firmographics
building lead-generation and prospecting tools
verifying business identity and registration details
monitoring competitors and market intelligence
powering B2B data enrichment pipelines

No authentication required. This API is open — no signup or key needed. Ideal for quick prototypes and public-facing features. Twilio - Voice is free to use, making it a low-risk choice to experiment with.

New to APIs? Read our beginner's guide

Open documentation ↗