The SureVoIP RESTful API

surevoip · Company

Company No Auth Free & Open telecom

# Introduction Welcome to the SureVoIP RESTful hypermedia API (sometimes known as a VoIP REST API, Telecom REST API, SIP API, Hypermedia API or just VoIP API.) The SureVoIP API is a way for you to automate your interaction with the SureVoIP platforms. With the API, you can create your own scripts, applications or mashups which can: * List calls * create customers * search numbers * provision numbers * send SMS texts * create outbound calls * schedule announcements * schedule call hangups with a

Authentication

No authentication requiredFree to use with no key needed.

Sample Requests

GET List global resources

List global resources

https://api.apis.guru/v2/specs/surevoip.co.uk/9dcb0dc8?hypermedia=yes&content-type=application/json

Hover any highlighted part to learn what it does

curl -X GET "https://api.apis.guru/v2/specs/surevoip.co.uk/9dcb0dc8/?hypermedia=yes&content-type=application%2Fjson"

import requests
params = {
    "hypermedia": "yes",
    "content-type": "application/json"
}
response = requests.get(
    "https://api.apis.guru/v2/specs/surevoip.co.uk/9dcb0dc8/",
    params=params,
)
print(response.json())

const url = new URL('https://api.apis.guru/v2/specs/surevoip.co.uk/9dcb0dc8/');
url.searchParams.set('hypermedia', 'yes');
url.searchParams.set('content-type', 'application/json');

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/surevoip.co.uk/9dcb0dc8/")
	q := baseURL.Query()
	q.Set("hypermedia", "yes")
	q.Set("content-type", "application/json")
	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/surevoip.co.uk/9dcb0dc8/")
uri.query = URI.encode_www_form({
  "hypermedia" => "yes",
  "content-type" => "application/json"
})

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/surevoip.co.uk/9dcb0dc8/?" . http_build_query([
    "hypermedia" => "yes",
    "content-type" => "application/json"
]);
$opts = ["http" => [
    "method" => "GET",
]];
$ctx = stream_context_create($opts);
$res = file_get_contents($url, false, $ctx);
print_r(json_decode($res, true));

GET Validate a phone number by calling it once

Validate a phone number by calling it once

https://api.apis.guru/v2/specs/surevoip.co.uk/9dcb0dc8/calls?validate=1

Hover any highlighted part to learn what it does

curl -X GET "https://api.apis.guru/v2/specs/surevoip.co.uk/9dcb0dc8/calls?validate=1"

import requests
params = {
    "validate": "1"
}
response = requests.get(
    "https://api.apis.guru/v2/specs/surevoip.co.uk/9dcb0dc8/calls",
    params=params,
)
print(response.json())

const url = new URL('https://api.apis.guru/v2/specs/surevoip.co.uk/9dcb0dc8/calls');
url.searchParams.set('validate', '1');

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/surevoip.co.uk/9dcb0dc8/calls")
	q := baseURL.Query()
	q.Set("validate", "1")
	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/surevoip.co.uk/9dcb0dc8/calls")
uri.query = URI.encode_www_form({
  "validate" => "1"
})

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/surevoip.co.uk/9dcb0dc8/calls?" . http_build_query([
    "validate" => "1"
]);
$opts = ["http" => [
    "method" => "GET",
]];
$ctx = stream_context_create($opts);
$res = file_get_contents($url, false, $ctx);
print_r(json_decode($res, true));

GET List global announcements

List global announcements

https://api.apis.guru/v2/specs/surevoip.co.uk/9dcb0dc8/announcements

Hover any highlighted part to learn what it does

curl -X GET "https://api.apis.guru/v2/specs/surevoip.co.uk/9dcb0dc8/announcements"

import requests
response = requests.get(
    "https://api.apis.guru/v2/specs/surevoip.co.uk/9dcb0dc8/announcements",
)
print(response.json())

const url = 'https://api.apis.guru/v2/specs/surevoip.co.uk/9dcb0dc8/announcements';

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/surevoip.co.uk/9dcb0dc8/announcements"
	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/surevoip.co.uk/9dcb0dc8/announcements")

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/surevoip.co.uk/9dcb0dc8/announcements";
$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 The SureVoIP RESTful API?

The SureVoIP RESTful API 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. The SureVoIP RESTful API is free to use, making it a low-risk choice to experiment with.

New to APIs? Read our beginner's guide · Learn about API keys · What is REST?

Open documentation ↗