curl --request PUT \
  --url https://int-data.moneydesktop.com/categories/{category_guid} \
  --header 'Content-Type: application/vnd.mx.nexus.v1+json' \
  --header 'MD-SESSION-TOKEN: <api-key>' \
  --data '
{
  "category": {
    "name": "March Madness",
    "metadata": "Additional information",
    "skip_webhook": true
  }
}
'

import requests

url = "https://int-data.moneydesktop.com/categories/{category_guid}"

payload = { "category": {
        "name": "March Madness",
        "metadata": "Additional information",
        "skip_webhook": True
    } }
headers = {
    "MD-SESSION-TOKEN": "<api-key>",
    "Content-Type": "application/vnd.mx.nexus.v1+json"
}

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

print(response.text)

const options = {
  method: 'PUT',
  headers: {
    'MD-SESSION-TOKEN': '<api-key>',
    'Content-Type': 'application/vnd.mx.nexus.v1+json'
  },
  body: JSON.stringify({
    category: {name: 'March Madness', metadata: 'Additional information', skip_webhook: true}
  })
};

fetch('https://int-data.moneydesktop.com/categories/{category_guid}', 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://int-data.moneydesktop.com/categories/{category_guid}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "PUT",
  CURLOPT_POSTFIELDS => json_encode([
    'category' => [
        'name' => 'March Madness',
        'metadata' => 'Additional information',
        'skip_webhook' => true
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/vnd.mx.nexus.v1+json",
    "MD-SESSION-TOKEN: <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://int-data.moneydesktop.com/categories/{category_guid}"

	payload := strings.NewReader("{\n  \"category\": {\n    \"name\": \"March Madness\",\n    \"metadata\": \"Additional information\",\n    \"skip_webhook\": true\n  }\n}")

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

	req.Header.Add("MD-SESSION-TOKEN", "<api-key>")
	req.Header.Add("Content-Type", "application/vnd.mx.nexus.v1+json")

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

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

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.put("https://int-data.moneydesktop.com/categories/{category_guid}")
  .header("MD-SESSION-TOKEN", "<api-key>")
  .header("Content-Type", "application/vnd.mx.nexus.v1+json")
  .body("{\n  \"category\": {\n    \"name\": \"March Madness\",\n    \"metadata\": \"Additional information\",\n    \"skip_webhook\": true\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://int-data.moneydesktop.com/categories/{category_guid}")

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

request = Net::HTTP::Put.new(url)
request["MD-SESSION-TOKEN"] = '<api-key>'
request["Content-Type"] = 'application/vnd.mx.nexus.v1+json'
request.body = "{\n  \"category\": {\n    \"name\": \"March Madness\",\n    \"metadata\": \"Additional information\",\n    \"skip_webhook\": true\n  }\n}"

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

{
  "category": {
    "created_at": "2015-04-13T12:01:23.000Z",
    "guid": "CAT-de7c2dc7-90e6-85a2-6509-5ec10942e887",
    "is_default": true,
    "is_income": true,
    "metadata": "Additional information",
    "name": "Auto Insurance",
    "parent_guid": "CAT-7829f71c-2e8c-afa5-2f55-fa3634b89874",
    "updated_at": "2015-04-13T12:01:23.000Z"
  }
}