curl --request POST \
  --url https://api.kraken.com/v0/insto/custody/tasks \
  --header 'Content-Type: application/json' \
  --header 'api-key: <api-key>' \
  --header 'api-nonce: <api-key>' \
  --header 'api-sign: <api-key>' \
  --data '
{
  "instructions": [
    {
      "type": "update_subquorum",
      "version": 123,
      "vault_id": "<string>",
      "groups": [
        {
          "required": 123,
          "members": [
            "<string>"
          ],
          "id": "<string>"
        }
      ]
    }
  ],
  "org_iiban": "ABCD EFGH IJKL MNOP",
  "duration_seconds": 86400
}
'

import requests

url = "https://api.kraken.com/v0/insto/custody/tasks"

payload = {
    "instructions": [
        {
            "type": "update_subquorum",
            "version": 123,
            "vault_id": "<string>",
            "groups": [
                {
                    "required": 123,
                    "members": ["<string>"],
                    "id": "<string>"
                }
            ]
        }
    ],
    "org_iiban": "ABCD EFGH IJKL MNOP",
    "duration_seconds": 86400
}
headers = {
    "api-key": "<api-key>",
    "api-sign": "<api-key>",
    "api-nonce": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {
    'api-key': '<api-key>',
    'api-sign': '<api-key>',
    'api-nonce': '<api-key>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    instructions: [
      {
        type: 'update_subquorum',
        version: 123,
        vault_id: '<string>',
        groups: [{required: 123, members: ['<string>'], id: '<string>'}]
      }
    ],
    org_iiban: 'ABCD EFGH IJKL MNOP',
    duration_seconds: 86400
  })
};

fetch('https://api.kraken.com/v0/insto/custody/tasks', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

package main

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

func main() {

	url := "https://api.kraken.com/v0/insto/custody/tasks"

	payload := strings.NewReader("{\n  \"instructions\": [\n    {\n      \"type\": \"update_subquorum\",\n      \"version\": 123,\n      \"vault_id\": \"<string>\",\n      \"groups\": [\n        {\n          \"required\": 123,\n          \"members\": [\n            \"<string>\"\n          ],\n          \"id\": \"<string>\"\n        }\n      ]\n    }\n  ],\n  \"org_iiban\": \"ABCD EFGH IJKL MNOP\",\n  \"duration_seconds\": 86400\n}")

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

	req.Header.Add("api-key", "<api-key>")
	req.Header.Add("api-sign", "<api-key>")
	req.Header.Add("api-nonce", "<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))

}

{
  "task_id": "TABCDEF234567A",
  "approval_id": "550E8400-E29B-41D4-A716-446655440000"
}

{
  "type": "tag:kraken.com,2025:BadRequest",
  "status": 400,
  "title": "Bad Request",
  "data": {
    "message": "instructions must not be empty"
  },
  "detail": "Request failed validation: instructions must not be empty.",
  "instance": "https://debug.kraken.com/req/01HXYZABCDEF"
}

{
  "type": "tag:kraken.com,2025:PermissionDenied",
  "status": 403,
  "title": "Forbidden",
  "data": {
    "message": "api key lacks access to the requested vault"
  },
  "detail": "Caller lacks access to the requested vault or organization.",
  "instance": "https://debug.kraken.com/req/01HXYZABCDEF"
}

{
  "type": "tag:kraken.com,2025:gateway/ReadUpstream",
  "status": 500,
  "title": "Internal Server Error",
  "data": "<unknown>",
  "detail": "Failed to read upstream response from custody service.",
  "instance": "https://debug.kraken.com/req/01HXYZABCDEF"
}

{
  "type": "tag:kraken.com,2025:gateway/Connect",
  "status": 503,
  "title": "Service Unavailable",
  "data": "<unknown>",
  "detail": "Failed to connect to upstream custody service.",
  "instance": "https://debug.kraken.com/req/01HXYZABCDEF"
}