curl --request POST \
  --url https://app.closerx.ai/api/v2/contact/ \
  --header 'Company-Name: <company-name>' \
  --header 'Content-Type: application/json' \
  --header 'api_key: <api-key>' \
  --data '
{
  "first_name": "Amandeep (testingg)",
  "last_name": "Singhh",
  "contact_number": "+919999728776",
  "id": "",
  "email": "amanhxe@gmal.com",
  "company_name": "softvel",
  "industry": "IT",
  "custom1": null,
  "custom2": null,
  "custom3": null,
  "custom4": null,
  "tags": [
    {
      "tag_name": "agent_hangup"
    }
  ]
}
'

import requests

url = "https://app.closerx.ai/api/v2/contact/"

payload = {
    "first_name": "Amandeep (testingg)",
    "last_name": "Singhh",
    "contact_number": "+919999728776",
    "id": "",
    "email": "amanhxe@gmal.com",
    "company_name": "softvel",
    "industry": "IT",
    "custom1": None,
    "custom2": None,
    "custom3": None,
    "custom4": None,
    "tags": [{ "tag_name": "agent_hangup" }]
}
headers = {
    "Company-Name": "<company-name>",
    "api_key": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {
    'Company-Name': '<company-name>',
    api_key: '<api-key>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    first_name: 'Amandeep (testingg)',
    last_name: 'Singhh',
    contact_number: '+919999728776',
    id: '',
    email: 'amanhxe@gmal.com',
    company_name: 'softvel',
    industry: 'IT',
    custom1: null,
    custom2: null,
    custom3: null,
    custom4: null,
    tags: [{tag_name: 'agent_hangup'}]
  })
};

fetch('https://app.closerx.ai/api/v2/contact/', 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://app.closerx.ai/api/v2/contact/",
  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([
    'first_name' => 'Amandeep (testingg)',
    'last_name' => 'Singhh',
    'contact_number' => '+919999728776',
    'id' => '',
    'email' => 'amanhxe@gmal.com',
    'company_name' => 'softvel',
    'industry' => 'IT',
    'custom1' => null,
    'custom2' => null,
    'custom3' => null,
    'custom4' => null,
    'tags' => [
        [
                'tag_name' => 'agent_hangup'
        ]
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Company-Name: <company-name>",
    "Content-Type: application/json",
    "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://app.closerx.ai/api/v2/contact/"

	payload := strings.NewReader("{\n  \"first_name\": \"Amandeep (testingg)\",\n  \"last_name\": \"Singhh\",\n  \"contact_number\": \"+919999728776\",\n  \"id\": \"\",\n  \"email\": \"amanhxe@gmal.com\",\n  \"company_name\": \"softvel\",\n  \"industry\": \"IT\",\n  \"custom1\": null,\n  \"custom2\": null,\n  \"custom3\": null,\n  \"custom4\": null,\n  \"tags\": [\n    {\n      \"tag_name\": \"agent_hangup\"\n    }\n  ]\n}")

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

	req.Header.Add("Company-Name", "<company-name>")
	req.Header.Add("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://app.closerx.ai/api/v2/contact/")
  .header("Company-Name", "<company-name>")
  .header("api_key", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"first_name\": \"Amandeep (testingg)\",\n  \"last_name\": \"Singhh\",\n  \"contact_number\": \"+919999728776\",\n  \"id\": \"\",\n  \"email\": \"amanhxe@gmal.com\",\n  \"company_name\": \"softvel\",\n  \"industry\": \"IT\",\n  \"custom1\": null,\n  \"custom2\": null,\n  \"custom3\": null,\n  \"custom4\": null,\n  \"tags\": [\n    {\n      \"tag_name\": \"agent_hangup\"\n    }\n  ]\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://app.closerx.ai/api/v2/contact/")

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

request = Net::HTTP::Post.new(url)
request["Company-Name"] = '<company-name>'
request["api_key"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"first_name\": \"Amandeep (testingg)\",\n  \"last_name\": \"Singhh\",\n  \"contact_number\": \"+919999728776\",\n  \"id\": \"\",\n  \"email\": \"amanhxe@gmal.com\",\n  \"company_name\": \"softvel\",\n  \"industry\": \"IT\",\n  \"custom1\": null,\n  \"custom2\": null,\n  \"custom3\": null,\n  \"custom4\": null,\n  \"tags\": [\n    {\n      \"tag_name\": \"agent_hangup\"\n    }\n  ]\n}"

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

{
  "success": true,
  "message": "Success",
  "data": {
    "id": 4503,
    "contact_number": "+919999728776",
    "email": "amanhxe@gmal.com",
    "first_name": "Amandeep (testingg)",
    "last_name": "Singhh",
    "company_name": "softvel",
    "industry": "IT",
    "custom1": null,
    "custom2": null,
    "custom3": null,
    "custom4": null,
    "isactive": true,
    "address": null,
    "contact_id": null,
    "tags": [
      {
        "id": 14,
        "tag_name": "agent_hangup"
      }
    ]
  }
}

{
  "success": true,
  "message": "<string>",
  "data": {}
}