curl --request POST \
  --url https://api.exchange.coinbase.com/transfers/{transfer_id}/travel-rules \
  --header 'Content-Type: application/json' \
  --header 'cb-access-key: <api-key>' \
  --header 'cb-access-passphrase: <api-key>' \
  --header 'cb-access-sign: <api-key>' \
  --header 'cb-access-timestamp: <api-key>' \
  --data '
{
  "transfer_id": "<string>",
  "originator_name": "<string>",
  "originator_country": "<string>",
  "vasp_id": "<string>",
  "vasp_country": "<string>",
  "lei_number": "<string>",
  "business_address": {
    "address_1": "<string>",
    "address_2": "<string>",
    "address_3": "<string>",
    "city": "<string>",
    "state": "<string>",
    "country": "<string>",
    "postal_code": "<string>"
  },
  "wallet_type": "UNKNOWN_WALLET_TYPE",
  "is_self_certified": true
}
'

import requests

url = "https://api.exchange.coinbase.com/transfers/{transfer_id}/travel-rules"

payload = {
    "transfer_id": "<string>",
    "originator_name": "<string>",
    "originator_country": "<string>",
    "vasp_id": "<string>",
    "vasp_country": "<string>",
    "lei_number": "<string>",
    "business_address": {
        "address_1": "<string>",
        "address_2": "<string>",
        "address_3": "<string>",
        "city": "<string>",
        "state": "<string>",
        "country": "<string>",
        "postal_code": "<string>"
    },
    "wallet_type": "UNKNOWN_WALLET_TYPE",
    "is_self_certified": True
}
headers = {
    "cb-access-key": "<api-key>",
    "cb-access-passphrase": "<api-key>",
    "cb-access-sign": "<api-key>",
    "cb-access-timestamp": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {
    'cb-access-key': '<api-key>',
    'cb-access-passphrase': '<api-key>',
    'cb-access-sign': '<api-key>',
    'cb-access-timestamp': '<api-key>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    transfer_id: '<string>',
    originator_name: '<string>',
    originator_country: '<string>',
    vasp_id: '<string>',
    vasp_country: '<string>',
    lei_number: '<string>',
    business_address: {
      address_1: '<string>',
      address_2: '<string>',
      address_3: '<string>',
      city: '<string>',
      state: '<string>',
      country: '<string>',
      postal_code: '<string>'
    },
    wallet_type: 'UNKNOWN_WALLET_TYPE',
    is_self_certified: true
  })
};

fetch('https://api.exchange.coinbase.com/transfers/{transfer_id}/travel-rules', 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.exchange.coinbase.com/transfers/{transfer_id}/travel-rules",
  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([
    'transfer_id' => '<string>',
    'originator_name' => '<string>',
    'originator_country' => '<string>',
    'vasp_id' => '<string>',
    'vasp_country' => '<string>',
    'lei_number' => '<string>',
    'business_address' => [
        'address_1' => '<string>',
        'address_2' => '<string>',
        'address_3' => '<string>',
        'city' => '<string>',
        'state' => '<string>',
        'country' => '<string>',
        'postal_code' => '<string>'
    ],
    'wallet_type' => 'UNKNOWN_WALLET_TYPE',
    'is_self_certified' => true
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "cb-access-key: <api-key>",
    "cb-access-passphrase: <api-key>",
    "cb-access-sign: <api-key>",
    "cb-access-timestamp: <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.exchange.coinbase.com/transfers/{transfer_id}/travel-rules"

	payload := strings.NewReader("{\n  \"transfer_id\": \"<string>\",\n  \"originator_name\": \"<string>\",\n  \"originator_country\": \"<string>\",\n  \"vasp_id\": \"<string>\",\n  \"vasp_country\": \"<string>\",\n  \"lei_number\": \"<string>\",\n  \"business_address\": {\n    \"address_1\": \"<string>\",\n    \"address_2\": \"<string>\",\n    \"address_3\": \"<string>\",\n    \"city\": \"<string>\",\n    \"state\": \"<string>\",\n    \"country\": \"<string>\",\n    \"postal_code\": \"<string>\"\n  },\n  \"wallet_type\": \"UNKNOWN_WALLET_TYPE\",\n  \"is_self_certified\": true\n}")

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

	req.Header.Add("cb-access-key", "<api-key>")
	req.Header.Add("cb-access-passphrase", "<api-key>")
	req.Header.Add("cb-access-sign", "<api-key>")
	req.Header.Add("cb-access-timestamp", "<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.exchange.coinbase.com/transfers/{transfer_id}/travel-rules")
  .header("cb-access-key", "<api-key>")
  .header("cb-access-passphrase", "<api-key>")
  .header("cb-access-sign", "<api-key>")
  .header("cb-access-timestamp", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"transfer_id\": \"<string>\",\n  \"originator_name\": \"<string>\",\n  \"originator_country\": \"<string>\",\n  \"vasp_id\": \"<string>\",\n  \"vasp_country\": \"<string>\",\n  \"lei_number\": \"<string>\",\n  \"business_address\": {\n    \"address_1\": \"<string>\",\n    \"address_2\": \"<string>\",\n    \"address_3\": \"<string>\",\n    \"city\": \"<string>\",\n    \"state\": \"<string>\",\n    \"country\": \"<string>\",\n    \"postal_code\": \"<string>\"\n  },\n  \"wallet_type\": \"UNKNOWN_WALLET_TYPE\",\n  \"is_self_certified\": true\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.exchange.coinbase.com/transfers/{transfer_id}/travel-rules")

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

request = Net::HTTP::Post.new(url)
request["cb-access-key"] = '<api-key>'
request["cb-access-passphrase"] = '<api-key>'
request["cb-access-sign"] = '<api-key>'
request["cb-access-timestamp"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"transfer_id\": \"<string>\",\n  \"originator_name\": \"<string>\",\n  \"originator_country\": \"<string>\",\n  \"vasp_id\": \"<string>\",\n  \"vasp_country\": \"<string>\",\n  \"lei_number\": \"<string>\",\n  \"business_address\": {\n    \"address_1\": \"<string>\",\n    \"address_2\": \"<string>\",\n    \"address_3\": \"<string>\",\n    \"city\": \"<string>\",\n    \"state\": \"<string>\",\n    \"country\": \"<string>\",\n    \"postal_code\": \"<string>\"\n  },\n  \"wallet_type\": \"UNKNOWN_WALLET_TYPE\",\n  \"is_self_certified\": true\n}"

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

{
  "message": "<string>"
}

{
  "message": "<string>"
}

{
  "message": "<string>"
}