curl --request GET \
  --url https://api.kraken.com/v0/insto/custody/assets

import requests

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

response = requests.get(url)

print(response.text)

const options = {method: 'GET'};

fetch('https://api.kraken.com/v0/insto/custody/assets', 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/assets"

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

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

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

	fmt.Println(string(body))

}

[
  {
    "name": "Bitcoin",
    "asset": "BTC",
    "asset_class": "currency",
    "symbol": "₿",
    "decimals": 8,
    "display_decimals": 5,
    "withdraw": true,
    "deposit": true,
    "transfer_to_spot": true,
    "transfer_to_vault": true,
    "stake": false,
    "full_name": "Bitcoin (BTC)",
    "network": "Bitcoin"
  }
]

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

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