curl --request POST \
  --url https://api.grailpay.com/3p/api/v2/users/{uuid}/kyb \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "first_name": "John",
  "last_name": "Doe",
  "email": "",
  "phone": "",
  "business": {
    "name": "Business Name",
    "tin": "123456789",
    "trading_name": "Business Trading Name",
    "entity_type": "",
    "incorporation_date": "2021-01-01",
    "incorporation_state": "CO",
    "industry": "",
    "industry_classification": {
      "code_type": "",
      "codes": [
        "<string>"
      ],
      "description": ""
    },
    "source_of_wealth": "",
    "source_of_funds": "",
    "first_transaction_completed_at": "2021-01-01 00:00:00",
    "product_type": "",
    "registered_as_inactive": false,
    "address_type": ""
  },
  "billing_merchant_user_uuid": "123e4567-e89b-12d3-a456-426614174000",
  "billing_processor_mid": "1234567890"
}
'

import requests

url = "https://api.grailpay.com/3p/api/v2/users/{uuid}/kyb"

payload = {
    "first_name": "John",
    "last_name": "Doe",
    "email": "",
    "phone": "",
    "business": {
        "name": "Business Name",
        "tin": "123456789",
        "trading_name": "Business Trading Name",
        "entity_type": "",
        "incorporation_date": "2021-01-01",
        "incorporation_state": "CO",
        "industry": "",
        "industry_classification": {
            "code_type": "",
            "codes": ["<string>"],
            "description": ""
        },
        "source_of_wealth": "",
        "source_of_funds": "",
        "first_transaction_completed_at": "2021-01-01 00:00:00",
        "product_type": "",
        "registered_as_inactive": False,
        "address_type": ""
    },
    "billing_merchant_user_uuid": "123e4567-e89b-12d3-a456-426614174000",
    "billing_processor_mid": "1234567890"
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    first_name: 'John',
    last_name: 'Doe',
    email: '',
    phone: '',
    business: {
      name: 'Business Name',
      tin: '123456789',
      trading_name: 'Business Trading Name',
      entity_type: '',
      incorporation_date: '2021-01-01',
      incorporation_state: 'CO',
      industry: '',
      industry_classification: {code_type: '', codes: ['<string>'], description: ''},
      source_of_wealth: '',
      source_of_funds: '',
      first_transaction_completed_at: '2021-01-01 00:00:00',
      product_type: '',
      registered_as_inactive: false,
      address_type: ''
    },
    billing_merchant_user_uuid: '123e4567-e89b-12d3-a456-426614174000',
    billing_processor_mid: '1234567890'
  })
};

fetch('https://api.grailpay.com/3p/api/v2/users/{uuid}/kyb', 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.grailpay.com/3p/api/v2/users/{uuid}/kyb",
  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' => 'John',
    'last_name' => 'Doe',
    'email' => '',
    'phone' => '',
    'business' => [
        'name' => 'Business Name',
        'tin' => '123456789',
        'trading_name' => 'Business Trading Name',
        'entity_type' => '',
        'incorporation_date' => '2021-01-01',
        'incorporation_state' => 'CO',
        'industry' => '',
        'industry_classification' => [
                'code_type' => '',
                'codes' => [
                                '<string>'
                ],
                'description' => ''
        ],
        'source_of_wealth' => '',
        'source_of_funds' => '',
        'first_transaction_completed_at' => '2021-01-01 00:00:00',
        'product_type' => '',
        'registered_as_inactive' => false,
        'address_type' => ''
    ],
    'billing_merchant_user_uuid' => '123e4567-e89b-12d3-a456-426614174000',
    'billing_processor_mid' => '1234567890'
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($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.grailpay.com/3p/api/v2/users/{uuid}/kyb"

	payload := strings.NewReader("{\n  \"first_name\": \"John\",\n  \"last_name\": \"Doe\",\n  \"email\": \"\",\n  \"phone\": \"\",\n  \"business\": {\n    \"name\": \"Business Name\",\n    \"tin\": \"123456789\",\n    \"trading_name\": \"Business Trading Name\",\n    \"entity_type\": \"\",\n    \"incorporation_date\": \"2021-01-01\",\n    \"incorporation_state\": \"CO\",\n    \"industry\": \"\",\n    \"industry_classification\": {\n      \"code_type\": \"\",\n      \"codes\": [\n        \"<string>\"\n      ],\n      \"description\": \"\"\n    },\n    \"source_of_wealth\": \"\",\n    \"source_of_funds\": \"\",\n    \"first_transaction_completed_at\": \"2021-01-01 00:00:00\",\n    \"product_type\": \"\",\n    \"registered_as_inactive\": false,\n    \"address_type\": \"\"\n  },\n  \"billing_merchant_user_uuid\": \"123e4567-e89b-12d3-a456-426614174000\",\n  \"billing_processor_mid\": \"1234567890\"\n}")

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

	req.Header.Add("Authorization", "Bearer <token>")
	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.grailpay.com/3p/api/v2/users/{uuid}/kyb")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"first_name\": \"John\",\n  \"last_name\": \"Doe\",\n  \"email\": \"\",\n  \"phone\": \"\",\n  \"business\": {\n    \"name\": \"Business Name\",\n    \"tin\": \"123456789\",\n    \"trading_name\": \"Business Trading Name\",\n    \"entity_type\": \"\",\n    \"incorporation_date\": \"2021-01-01\",\n    \"incorporation_state\": \"CO\",\n    \"industry\": \"\",\n    \"industry_classification\": {\n      \"code_type\": \"\",\n      \"codes\": [\n        \"<string>\"\n      ],\n      \"description\": \"\"\n    },\n    \"source_of_wealth\": \"\",\n    \"source_of_funds\": \"\",\n    \"first_transaction_completed_at\": \"2021-01-01 00:00:00\",\n    \"product_type\": \"\",\n    \"registered_as_inactive\": false,\n    \"address_type\": \"\"\n  },\n  \"billing_merchant_user_uuid\": \"123e4567-e89b-12d3-a456-426614174000\",\n  \"billing_processor_mid\": \"1234567890\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.grailpay.com/3p/api/v2/users/{uuid}/kyb")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"first_name\": \"John\",\n  \"last_name\": \"Doe\",\n  \"email\": \"\",\n  \"phone\": \"\",\n  \"business\": {\n    \"name\": \"Business Name\",\n    \"tin\": \"123456789\",\n    \"trading_name\": \"Business Trading Name\",\n    \"entity_type\": \"\",\n    \"incorporation_date\": \"2021-01-01\",\n    \"incorporation_state\": \"CO\",\n    \"industry\": \"\",\n    \"industry_classification\": {\n      \"code_type\": \"\",\n      \"codes\": [\n        \"<string>\"\n      ],\n      \"description\": \"\"\n    },\n    \"source_of_wealth\": \"\",\n    \"source_of_funds\": \"\",\n    \"first_transaction_completed_at\": \"2021-01-01 00:00:00\",\n    \"product_type\": \"\",\n    \"registered_as_inactive\": false,\n    \"address_type\": \"\"\n  },\n  \"billing_merchant_user_uuid\": \"123e4567-e89b-12d3-a456-426614174000\",\n  \"billing_processor_mid\": \"1234567890\"\n}"

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

{
  "status": true,
  "message": "The business KYB has been updated.",
  "data": null,
  "errors": null,
  "error_code": null
}

{
  "status": false,
  "message": "Invalid token.",
  "data": null,
  "errors": null,
  "error_code": null
}

{
  "status": false,
  "message": "Only business users are allowed to update KYB.",
  "data": null,
  "errors": null,
  "error_code": null
}

{
  "status": false,
  "message": "User not found.",
  "data": null,
  "errors": null,
  "error_code": null
}

{
  "status": false,
  "message": "The requested billing merchant user uuid does not exist.",
  "data": null,
  "errors": null,
  "error_code": null
}

{
  "status": false,
  "message": "The given data was invalid.",
  "data": null,
  "errors": {
    "first_name": [
      "The tin is required."
    ]
  },
  "error_code": null
}