curl --request POST \
  --url https://api.demo.cula.earth/tracking/v1/machine-data-annotations/{id}/machine-variables/{machine_variable_id} \
  --header 'Authorization: Bearer <token>' \
  --header 'Cula-Organisation-Id: <cula-organisation-id>'

import requests

url = "https://api.demo.cula.earth/tracking/v1/machine-data-annotations/{id}/machine-variables/{machine_variable_id}"

headers = {
    "Cula-Organisation-Id": "<cula-organisation-id>",
    "Authorization": "Bearer <token>"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {
    'Cula-Organisation-Id': '<cula-organisation-id>',
    Authorization: 'Bearer <token>'
  }
};

fetch('https://api.demo.cula.earth/tracking/v1/machine-data-annotations/{id}/machine-variables/{machine_variable_id}', 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.demo.cula.earth/tracking/v1/machine-data-annotations/{id}/machine-variables/{machine_variable_id}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Cula-Organisation-Id: <cula-organisation-id>"
  ],
]);

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

curl_close($curl);

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

package main

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

func main() {

	url := "https://api.demo.cula.earth/tracking/v1/machine-data-annotations/{id}/machine-variables/{machine_variable_id}"

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

	req.Header.Add("Cula-Organisation-Id", "<cula-organisation-id>")
	req.Header.Add("Authorization", "Bearer <token>")

	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.demo.cula.earth/tracking/v1/machine-data-annotations/{id}/machine-variables/{machine_variable_id}")
  .header("Cula-Organisation-Id", "<cula-organisation-id>")
  .header("Authorization", "Bearer <token>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.demo.cula.earth/tracking/v1/machine-data-annotations/{id}/machine-variables/{machine_variable_id}")

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

request = Net::HTTP::Post.new(url)
request["Cula-Organisation-Id"] = '<cula-organisation-id>'
request["Authorization"] = 'Bearer <token>'

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

{
  "id": "mda_01k7v3n9cbp2s0w8qh4xr6fzje",
  "external_id": "ANNOTATION-EXT-0001",
  "type": "instant",
  "occurred_at": "2026-05-01T12:30:00.000Z",
  "site": {
    "id": "ste_01k8g7aec6dt5zrtamc72ww446",
    "external_id": "SITE-EXT-0001"
  },
  "created_at": "2026-05-06T19:34:00.000Z",
  "text": "Kiln restarted after the morning inspection",
  "machine_variables": [
    {
      "id": "mvr_01kae7a2kpkcqwy7fwk2fft11h"
    }
  ]
}

{
  "code": "bad_request",
  "message": "The field limit must not be greater than 100."
}

{
  "code": "unauthorized",
  "message": "Invalid or expired token"
}

{
  "code": "not_found",
  "message": "Resource with ID xyz_01k56g7aec6dt5zrtamc72vw446 could not be found."
}

{
  "code": "internal_server_error",
  "message": "Internal server error."
}