Phone Number Normalizer API

curl --request POST \
  --url https://api.cufinder.io/v2/nao \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '
{
  "phone": "<string>"
}
'

import requests

url = "https://api.cufinder.io/v2/nao"

payload = { "phone": "<string>" }
headers = {
    "x-api-key": "<api-key>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {'x-api-key': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({phone: '<string>'})
};

fetch('https://api.cufinder.io/v2/nao', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.cufinder.io/v2/nao",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'phone' => '<string>'
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "x-api-key: <api-key>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

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

func main() {

	url := "https://api.cufinder.io/v2/nao"

	payload := strings.NewReader("{\n  \"phone\": \"<string>\"\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("x-api-key", "<api-key>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://api.cufinder.io/v2/nao")
  .header("x-api-key", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"phone\": \"<string>\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.cufinder.io/v2/nao")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["x-api-key"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"phone\": \"<string>\"\n}"

response = http.request(request)
puts response.read_body

General APIs

Phone Number Normalizer API

Data quality issues start when phone numbers arrive in dozens of inconsistent formats across your contact database. The Phone Number Normalizer API standardizes phone numbers into E.164 international format, returning cleaned numbers with country codes, area codes, and validation status that ensure CRM integration compatibility and dialer system accuracy. Built for data enrichment platforms, contact management systems, and communication automation tools, this RESTful endpoint delivers normalized phone data—including format corrections, carrier type detection, and validity flags—that power click-to-dial functionality, SMS delivery optimization, and duplicate contact consolidation workflows across your sales and marketing stack.

POST

nao

curl --request POST \
  --url https://api.cufinder.io/v2/nao \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '
{
  "phone": "<string>"
}
'

import requests

url = "https://api.cufinder.io/v2/nao"

payload = { "phone": "<string>" }
headers = {
    "x-api-key": "<api-key>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {'x-api-key': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({phone: '<string>'})
};

fetch('https://api.cufinder.io/v2/nao', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.cufinder.io/v2/nao",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'phone' => '<string>'
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "x-api-key: <api-key>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

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

func main() {

	url := "https://api.cufinder.io/v2/nao"

	payload := strings.NewReader("{\n  \"phone\": \"<string>\"\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("x-api-key", "<api-key>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://api.cufinder.io/v2/nao")
  .header("x-api-key", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"phone\": \"<string>\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.cufinder.io/v2/nao")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["x-api-key"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"phone\": \"<string>\"\n}"

response = http.request(request)
puts response.read_body

Common Use Cases

Consistent phone formatting keeps dialers, deduplication, and compliance running smoothly.

Data Hygiene: Standardizing phone numbers to a consistent format before storage.
Deduplication: Matching records that store the same number different ways.
Dialer Readiness: Formatting numbers so calling tools dial correctly.
Compliance: Keeping numbers in a valid format for messaging and consent.
Data Integration: Reconciling phone formats across systems and imports.

Credit usage is 1 per record found.

Attributes

phone

string

required

Phone Number

Response

{
    "status": 1,
    "data": {
        "confidence_level": 99,
        "query": "+13108073300",
        "phone": "+1 310 807 3300",
        "credit_count": 22
    }
}