curl --request GET \
  --url https://api.kraken.com/v0/insto/custody/vaults/{vault_id}/transactions \
  --header 'api-key: <api-key>' \
  --header 'api-nonce: <api-key>' \
  --header 'api-sign: <api-key>'

import requests

url = "https://api.kraken.com/v0/insto/custody/vaults/{vault_id}/transactions"

headers = {
    "api-key": "<api-key>",
    "api-sign": "<api-key>",
    "api-nonce": "<api-key>"
}

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

print(response.text)

const options = {
  method: 'GET',
  headers: {'api-key': '<api-key>', 'api-sign': '<api-key>', 'api-nonce': '<api-key>'}
};

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

package main

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

func main() {

	url := "https://api.kraken.com/v0/insto/custody/vaults/{vault_id}/transactions"

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

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

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

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

	fmt.Println(string(body))

}

{
  "result": [
    {
      "id": "TXABCDE-FGHIJ-KLMNO2",
      "type": "deposit",
      "status": "completed",
      "asset": "BTC",
      "asset_class": "currency",
      "amount": "1.25",
      "time": "2024-05-14T22:13:20.000Z",
      "transaction_hash": "0x4a7d1ed414474e4033ac29ccb8653d9b00d3f1c9a3b7e5d2c8f6a4b1e9d7c5a3",
      "ref_id": "FTABCDE-FGHIJ-KLMNO2",
      "fee_amount": "0.01",
      "fee_asset": "BTC",
      "fee_asset_class": "currency",
      "extension_type": "post_trade_settlement",
      "destination_address": "bc1qar0srrr7xfkvy5l643lydnw9re59gtzzwf5mdq",
      "task": {
        "id": "a1b2c3d4-e5f6-4a7b-8c9d-0e1f2a3b4c5d",
        "created_at": "2026-01-15T12:34:56Z",
        "updated_at": "2026-01-15T12:35:56Z",
        "expires_at": "2026-01-16T12:34:56Z",
        "initiator": {
          "full_name": "Alex Doe",
          "role": "vault_admin",
          "ip_address": "203.0.113.10",
          "iiban": "ABCD EFGH IJKL MNOP"
        }
      }
    }
  ],
  "next_cursor": "eyJvZmZzZXQiOjI1fQ=="
}

{
  "type": "tag:kraken.com,2025:BadRequest",
  "status": 400,
  "title": "Bad Request",
  "data": {
    "message": "Request failed validation."
  },
  "detail": "Request failed validation.",
  "instance": "https://debug.kraken.com/req/01HXYZABCDEF"
}

{
  "type": "tag:kraken.com,2025:PermissionDenied",
  "status": 403,
  "title": "Forbidden",
  "data": {
    "message": "Caller lacks access to the requested resource."
  },
  "detail": "Caller lacks access to the requested resource.",
  "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 response from upstream custody service.",
  "instance": "https://debug.kraken.com/req/01HXYZABCDEF"
}

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