Fix "UTXO requests are not allowed" for Bitcoin, Dogecoin, Litecoin, or Bitcoin Cash

Last updated: August 24, 2026

Alchemy's UTXO API supports Bitcoin, Bitcoin Cash, Litecoin, and Dogecoin, and it's available on every plan tier, including Pay-As-You-Go, on a self-serve basis.

If a request to one of these networks returns an HTTP 401 error like this:

{"error": "UTXO requests are not allowed."}

it means UTXO support has not been enabled for the app making the request. UTXO/Bitcoin-family support is an opt-in add-on that has to be turned on per app before requests to any of these networks will succeed, even though the underlying account is on a plan that supports it.

How to fix it

  1. Open the app you're using for the integration in the Alchemy Dashboard.

  2. Go to that app's Endpoints tab.

  3. Search for "Bitcoin" and enable the toggle. This single toggle covers Bitcoin, Bitcoin Cash, Litecoin, and Dogecoin under the same UTXO add-on.

  4. Retry your request. Your existing API key will work once the add-on is enabled, no new key is required.

If requests still fail after enabling the add-on, contact support@alchemy.com.