Our API can be integrated into your web applications to validate phone numbers in real time. Using the API requires only a few lines of code.

Developer API Verify550 provides a developer API to integrate the phone validation process with your service. Our API provides the ability to check individual phone numbers and can accept a list of phone numbers phone through file upload.

Bulk Phone List Upload (/bulkPhoneList)

Submits a list of phone numbers contained within a file for bulk validation.

• Method:POST`
• Endpoint:https://app.verify550.com/api/bulkPhoneList`
• Authentication: Uses API Key passed as a query parameter.`

Parameters:

Query Parameters:

secret(string, Required): Your Verify550 API Key.

filename(string, Required): The name you want the uploaded file to have (e.g.,my_phones.csv ,list_to_validate.txt ).

Form Data ( multipart/form-data ):

file_contents(file, Required): The actual file containing the phone numbers list (one perline, ensure correct column formatting if applicable as per section 14).

Example Request ( cURL):

 
curl --request POST \ 
--url 'https://app.verify550.com/api/bulkPhoneList?
secret=YOUR_API_KEY&filename=phone_list_upload.csv' \
--header 'content-type: multipart/form-data' \ 
--form 'file_contents=@/path/to/your/local/phone_list.csv' 

We also provide other example requests:

Python

import http.client
conn = http.client.HTTPSConnection("app.verify550.com")
payload = "\r\nContent-Disposition: form-data; name=\"file_contents\"; filename=\"phone_list.csv\"\r\nContent-Type: text/csv\r\n\r\n\r\n--\r\n"
headers = { 'content-type': "multipart/form-data;" }
conn.request("POST", "/api/bulkPhoneList?%20secret=YOUR_API_KEY&filename=phone_list_upload.csv", payload, headers)
res = conn.getresponse()
data = res.read()
print(data.decode("utf-8"))

Ruby

 
require 'uri' 
require 'net/http' 
require 'openssl' url = URI("https://app.verify550.com/api/bulkPhoneList?%20secret=YOUR_API_KEY&filename=phone_list_upload.csv") 
http = Net::HTTP.new(url.host, url.port) 
http.use_ssl = true 
http.verify_mode = OpenSSL::SSL: 
request = Net::HTTP::Post.new(url) 
request["content-type"] = 'multipart/form-data; 
'request.body = "r\nContent-Disposition: form-data; name=\"file_contents\"; filename=\"phone_list.csv\"\r\nContent-Type: text/csv\r\n\r\n\r\n\r\n" 
response = http.request(request) puts response.read_body 

PHP

 
<?php 
$curl = curl_init(); curl_setopt_array($curl, [ CURLOPT_URL => "https://app.verify550.com/api/bulkPhoneList?%20secret=YOUR_API_KEY&filename=phone_list_upload.csv", 
CURLOPT_RETURNTRANSFER => true, 
CURLOPT_ENCODING => "", 
CURLOPT_MAXREDIRS => 10, 
CURLOPT_TIMEOUT => 30, 
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1, 
CURLOPT_CUSTOMREQUEST => "POST", 
CURLOPT_POSTFIELDS => "\r\nContent-Disposition: form-data; name=\"file_contents\"; filename=\"phone_list.csv\"\r\nContent-Type: text/csv\--\r\n", 
CURLOPT_HTTPHEADER => [ "content-type: multipart/form-data;" ], ]); 
$response = curl_exec($curl); 
$err = curl_error($curl); 
curl_close($curl); 
if ($err) { echo "cURL Error #:" . $err; 
} else { 
echo $response; 
} 

Example Success Response:
Upon successful submission, the API will likely return a JSON response similar to the email bulk upload, containing an identifier for the submitted job:

 
{ "success": true, "message": "File uploaded successfully for phone validation.", 
"id": "unique_job_id", 
"filename": "phone_list_upload.csv" } 

Our Guarantee

The validation process Verify550 provides 99% accurate results in real-time. With our proprietary “Carrier-Direct Line Intelligence”  we provide detailed validation status.