Create a material utilization

curl --request POST \
  --url https://api.demo.cula.earth/tracking/v1/material-utilizations \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'Cula-Organisation-Id: <cula-organisation-id>' \
  --data '
{
  "config_id": "mutc_01k16bap2kcz0asd2h2dkzz1xj",
  "occurred_at": "2026-01-15T08:00:00Z",
  "external_id": "MY-CUSTOM-ID",
  "site": {
    "id": "ste_01k8g7aec6dt5zrtamc72ww446"
  },
  "data_points": [
    {
      "config_id": "dptc_01jxdp05c8r7dp4xf89pxcw28q",
      "value": "<string>",
      "input_value": "<string>"
    }
  ]
}
'

import requests

url = "https://api.demo.cula.earth/tracking/v1/material-utilizations"

payload = {
    "config_id": "mutc_01k16bap2kcz0asd2h2dkzz1xj",
    "occurred_at": "2026-01-15T08:00:00Z",
    "external_id": "MY-CUSTOM-ID",
    "site": { "id": "ste_01k8g7aec6dt5zrtamc72ww446" },
    "data_points": [
        {
            "config_id": "dptc_01jxdp05c8r7dp4xf89pxcw28q",
            "value": "<string>",
            "input_value": "<string>"
        }
    ]
}
headers = {
    "Cula-Organisation-Id": "<cula-organisation-id>",
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {
    'Cula-Organisation-Id': '<cula-organisation-id>',
    Authorization: 'Bearer <token>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    config_id: 'mutc_01k16bap2kcz0asd2h2dkzz1xj',
    occurred_at: '2026-01-15T08:00:00Z',
    external_id: 'MY-CUSTOM-ID',
    site: {id: 'ste_01k8g7aec6dt5zrtamc72ww446'},
    data_points: [
      {
        config_id: 'dptc_01jxdp05c8r7dp4xf89pxcw28q',
        value: '<string>',
        input_value: '<string>'
      }
    ]
  })
};

fetch('https://api.demo.cula.earth/tracking/v1/material-utilizations', 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/material-utilizations",
  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([
    'config_id' => 'mutc_01k16bap2kcz0asd2h2dkzz1xj',
    'occurred_at' => '2026-01-15T08:00:00Z',
    'external_id' => 'MY-CUSTOM-ID',
    'site' => [
        'id' => 'ste_01k8g7aec6dt5zrtamc72ww446'
    ],
    'data_points' => [
        [
                'config_id' => 'dptc_01jxdp05c8r7dp4xf89pxcw28q',
                'value' => '<string>',
                'input_value' => '<string>'
        ]
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json",
    "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"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.demo.cula.earth/tracking/v1/material-utilizations"

	payload := strings.NewReader("{\n  \"config_id\": \"mutc_01k16bap2kcz0asd2h2dkzz1xj\",\n  \"occurred_at\": \"2026-01-15T08:00:00Z\",\n  \"external_id\": \"MY-CUSTOM-ID\",\n  \"site\": {\n    \"id\": \"ste_01k8g7aec6dt5zrtamc72ww446\"\n  },\n  \"data_points\": [\n    {\n      \"config_id\": \"dptc_01jxdp05c8r7dp4xf89pxcw28q\",\n      \"value\": \"<string>\",\n      \"input_value\": \"<string>\"\n    }\n  ]\n}")

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

	req.Header.Add("Cula-Organisation-Id", "<cula-organisation-id>")
	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.demo.cula.earth/tracking/v1/material-utilizations")
  .header("Cula-Organisation-Id", "<cula-organisation-id>")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"config_id\": \"mutc_01k16bap2kcz0asd2h2dkzz1xj\",\n  \"occurred_at\": \"2026-01-15T08:00:00Z\",\n  \"external_id\": \"MY-CUSTOM-ID\",\n  \"site\": {\n    \"id\": \"ste_01k8g7aec6dt5zrtamc72ww446\"\n  },\n  \"data_points\": [\n    {\n      \"config_id\": \"dptc_01jxdp05c8r7dp4xf89pxcw28q\",\n      \"value\": \"<string>\",\n      \"input_value\": \"<string>\"\n    }\n  ]\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.demo.cula.earth/tracking/v1/material-utilizations")

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>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"config_id\": \"mutc_01k16bap2kcz0asd2h2dkzz1xj\",\n  \"occurred_at\": \"2026-01-15T08:00:00Z\",\n  \"external_id\": \"MY-CUSTOM-ID\",\n  \"site\": {\n    \"id\": \"ste_01k8g7aec6dt5zrtamc72ww446\"\n  },\n  \"data_points\": [\n    {\n      \"config_id\": \"dptc_01jxdp05c8r7dp4xf89pxcw28q\",\n      \"value\": \"<string>\",\n      \"input_value\": \"<string>\"\n    }\n  ]\n}"

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

{
  "id": "mut_01kcwnf3gxeezez5jxrhf1k34x",
  "config_id": "mutc_01k16bap2kcz0asd2h2dkzz1xj",
  "config_version_id": "mutcv_01kbr6p08518pexf6rs9segz8j",
  "external_id": "MY-CUSTOM-ID",
  "display_id": "SNK-2026-01-15-1",
  "site": {
    "id": "ste_01k8g7aec6dt5zrtamc72ww446",
    "external_id": "SITE-EXT-0001"
  },
  "occurred_at": "2026-01-15T08:00:00Z",
  "created_at": "2026-01-15T08:00:00Z",
  "coordinates": {
    "lat": 52.520008,
    "long": 13.404954
  },
  "data_points": [
    {
      "config_id": "dptc_01jxdp05c8r7dp4xf89pxcw28q",
      "config_version_id": "dptcv_01kfxe6xgmw15gsf204jwj90g5",
      "name": "Weight gross",
      "type": "short_text",
      "value": "<string>",
      "input_value": "<string>",
      "result_value": "<string>"
    }
  ],
  "input_containers": [
    {
      "id": "mcn_01kqz4g5cjzvwsnnps6q7183q3",
      "config_id": "mcnc_01k102qfrwthwk6dsggr9y8evn",
      "config_version_id": "mcncv_01kxs8mt2y4711mz04rqs14t0a",
      "status": "available",
      "data_points": [
        {
          "config_id": "dptc_01jxdp05c8r7dp4xf89pxcw28q",
          "config_version_id": "dptcv_01kfxe6xgmw15gsf204jwj90g5",
          "name": "Weight gross",
          "type": "short_text",
          "value": "<string>",
          "input_value": "<string>",
          "result_value": "<string>"
        }
      ]
    }
  ]
}

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

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

{
  "code": "conflict",
  "message": "There exists already an object with external ID MY-CUSTOM-ID within this organisation."
}

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

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

POST

material-utilizations

Create a material utilization

curl --request POST \
  --url https://api.demo.cula.earth/tracking/v1/material-utilizations \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'Cula-Organisation-Id: <cula-organisation-id>' \
  --data '
{
  "config_id": "mutc_01k16bap2kcz0asd2h2dkzz1xj",
  "occurred_at": "2026-01-15T08:00:00Z",
  "external_id": "MY-CUSTOM-ID",
  "site": {
    "id": "ste_01k8g7aec6dt5zrtamc72ww446"
  },
  "data_points": [
    {
      "config_id": "dptc_01jxdp05c8r7dp4xf89pxcw28q",
      "value": "<string>",
      "input_value": "<string>"
    }
  ]
}
'

import requests

url = "https://api.demo.cula.earth/tracking/v1/material-utilizations"

payload = {
    "config_id": "mutc_01k16bap2kcz0asd2h2dkzz1xj",
    "occurred_at": "2026-01-15T08:00:00Z",
    "external_id": "MY-CUSTOM-ID",
    "site": { "id": "ste_01k8g7aec6dt5zrtamc72ww446" },
    "data_points": [
        {
            "config_id": "dptc_01jxdp05c8r7dp4xf89pxcw28q",
            "value": "<string>",
            "input_value": "<string>"
        }
    ]
}
headers = {
    "Cula-Organisation-Id": "<cula-organisation-id>",
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {
    'Cula-Organisation-Id': '<cula-organisation-id>',
    Authorization: 'Bearer <token>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    config_id: 'mutc_01k16bap2kcz0asd2h2dkzz1xj',
    occurred_at: '2026-01-15T08:00:00Z',
    external_id: 'MY-CUSTOM-ID',
    site: {id: 'ste_01k8g7aec6dt5zrtamc72ww446'},
    data_points: [
      {
        config_id: 'dptc_01jxdp05c8r7dp4xf89pxcw28q',
        value: '<string>',
        input_value: '<string>'
      }
    ]
  })
};

fetch('https://api.demo.cula.earth/tracking/v1/material-utilizations', 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/material-utilizations",
  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([
    'config_id' => 'mutc_01k16bap2kcz0asd2h2dkzz1xj',
    'occurred_at' => '2026-01-15T08:00:00Z',
    'external_id' => 'MY-CUSTOM-ID',
    'site' => [
        'id' => 'ste_01k8g7aec6dt5zrtamc72ww446'
    ],
    'data_points' => [
        [
                'config_id' => 'dptc_01jxdp05c8r7dp4xf89pxcw28q',
                'value' => '<string>',
                'input_value' => '<string>'
        ]
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json",
    "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"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.demo.cula.earth/tracking/v1/material-utilizations"

	payload := strings.NewReader("{\n  \"config_id\": \"mutc_01k16bap2kcz0asd2h2dkzz1xj\",\n  \"occurred_at\": \"2026-01-15T08:00:00Z\",\n  \"external_id\": \"MY-CUSTOM-ID\",\n  \"site\": {\n    \"id\": \"ste_01k8g7aec6dt5zrtamc72ww446\"\n  },\n  \"data_points\": [\n    {\n      \"config_id\": \"dptc_01jxdp05c8r7dp4xf89pxcw28q\",\n      \"value\": \"<string>\",\n      \"input_value\": \"<string>\"\n    }\n  ]\n}")

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

	req.Header.Add("Cula-Organisation-Id", "<cula-organisation-id>")
	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.demo.cula.earth/tracking/v1/material-utilizations")
  .header("Cula-Organisation-Id", "<cula-organisation-id>")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"config_id\": \"mutc_01k16bap2kcz0asd2h2dkzz1xj\",\n  \"occurred_at\": \"2026-01-15T08:00:00Z\",\n  \"external_id\": \"MY-CUSTOM-ID\",\n  \"site\": {\n    \"id\": \"ste_01k8g7aec6dt5zrtamc72ww446\"\n  },\n  \"data_points\": [\n    {\n      \"config_id\": \"dptc_01jxdp05c8r7dp4xf89pxcw28q\",\n      \"value\": \"<string>\",\n      \"input_value\": \"<string>\"\n    }\n  ]\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.demo.cula.earth/tracking/v1/material-utilizations")

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>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"config_id\": \"mutc_01k16bap2kcz0asd2h2dkzz1xj\",\n  \"occurred_at\": \"2026-01-15T08:00:00Z\",\n  \"external_id\": \"MY-CUSTOM-ID\",\n  \"site\": {\n    \"id\": \"ste_01k8g7aec6dt5zrtamc72ww446\"\n  },\n  \"data_points\": [\n    {\n      \"config_id\": \"dptc_01jxdp05c8r7dp4xf89pxcw28q\",\n      \"value\": \"<string>\",\n      \"input_value\": \"<string>\"\n    }\n  ]\n}"

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

{
  "id": "mut_01kcwnf3gxeezez5jxrhf1k34x",
  "config_id": "mutc_01k16bap2kcz0asd2h2dkzz1xj",
  "config_version_id": "mutcv_01kbr6p08518pexf6rs9segz8j",
  "external_id": "MY-CUSTOM-ID",
  "display_id": "SNK-2026-01-15-1",
  "site": {
    "id": "ste_01k8g7aec6dt5zrtamc72ww446",
    "external_id": "SITE-EXT-0001"
  },
  "occurred_at": "2026-01-15T08:00:00Z",
  "created_at": "2026-01-15T08:00:00Z",
  "coordinates": {
    "lat": 52.520008,
    "long": 13.404954
  },
  "data_points": [
    {
      "config_id": "dptc_01jxdp05c8r7dp4xf89pxcw28q",
      "config_version_id": "dptcv_01kfxe6xgmw15gsf204jwj90g5",
      "name": "Weight gross",
      "type": "short_text",
      "value": "<string>",
      "input_value": "<string>",
      "result_value": "<string>"
    }
  ],
  "input_containers": [
    {
      "id": "mcn_01kqz4g5cjzvwsnnps6q7183q3",
      "config_id": "mcnc_01k102qfrwthwk6dsggr9y8evn",
      "config_version_id": "mcncv_01kxs8mt2y4711mz04rqs14t0a",
      "status": "available",
      "data_points": [
        {
          "config_id": "dptc_01jxdp05c8r7dp4xf89pxcw28q",
          "config_version_id": "dptcv_01kfxe6xgmw15gsf204jwj90g5",
          "name": "Weight gross",
          "type": "short_text",
          "value": "<string>",
          "input_value": "<string>",
          "result_value": "<string>"
        }
      ]
    }
  ]
}

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

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

{
  "code": "conflict",
  "message": "There exists already an object with external ID MY-CUSTOM-ID within this organisation."
}

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

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

Authorizations

Authorization

string

header

required

OAuth 2.0 client credentials. Exchange your client_id and client_secret for an access token scoped to the organisation that provides data access.

Headers

Cula-Organisation-Id

string

required

ID of the organisation the request operates on behalf of (e.g. org_...). Must be an organisation the API client has access to.

Example:

"org_01k83mfmhgchya944v86ryvhpq"

Body

application/json

config_id

string

required

The ID of the material utilization config that defines the utilization to create.

Example:

"mutc_01k16bap2kcz0asd2h2dkzz1xj"

occurred_at

string<date-time>

When the utilization took place: an ISO 8601 date-time with an explicit UTC offset (Z or ±hh:mm). Defaults to now if omitted.

Example:

"2026-01-15T08:00:00Z"

external_id

string

A optional custom ID that can be set to an internal ID from your system. This ID must be unique within all objects of the organisation you operate in. You can later use this external ID to reference and query this object. Be aware that you can update this ID later. If you need an immutable ID, use the object ID returned when creating the object.

Required string length: 1 - 100

Pattern: ^[A-Za-z0-9\-_]+$

Example:

"MY-CUSTOM-ID"

site

object

The site the material was applied at, when it differs from the config's site — registered or unregistered. Reference it either by its ID or by its external ID, but not both. Defaults to the config's site.

Option 1
Option 2

Show child attributes

coordinates

object

The coordinates the material was applied at. Defaults to the application site's location.

Show child attributes

data_points

object[]

Values for the utilization's data points. When the config is unified (unified: true), the flat array spans the whole flow (utilization step and input containers); when unified is false, only the step's own data points.

Maximum array length: 100

Show child attributes

Response

Material utilization created.

string

required

The ID of the material utilization.

Example:

"mut_01kcwnf3gxeezez5jxrhf1k34x"

config_id

string

required

The ID of the config the utilization was created from.

Example:

"mutc_01k16bap2kcz0asd2h2dkzz1xj"

config_version_id

string

required

The ID of the exact config version the utilization was created from.

Example:

"mutcv_01kbr6p08518pexf6rs9segz8j"

external_id

string | null

required

Optional external ID of the utilization.

Example:

"MY-CUSTOM-ID"

display_id

string

required

Human-readable identifier.

Example:

"SNK-2026-01-15-1"

site

object

required

The site the material was applied at.

Show child attributes

occurred_at

string<date-time>

required

When the utilization took place.

Example:

"2026-01-15T08:00:00Z"

created_at

string<date-time>

required

When the utilization was recorded in Cula.

Example:

"2026-01-15T08:00:00Z"

coordinates

object | null

required

The coordinates the material was applied at.

Show child attributes

data_points

required

Data points set on the utilization step itself.

Data point holding a single line of text.

Show child attributes

input_containers

object[]

required

The material containers the utilization consumed. Always returned, whether the config is unified or not.

Show child attributes

General

Material Tracking

Machine Data

Create a material utilization

Authorizations

Headers

Body

Response