# Token management

Tokens are digital assets you can transact with on a blockchain ledger, such as ERC-20, ERC-721, and ERC-1155 tokens.

Ripple Custody uses an **Allowlist-Only** visibility model where only explicitly approved tokens are visible in the UI. This protects operators from spam and scam tokens.

## Token classification states

| State | Description | Visibility |
|  --- | --- | --- |
| **Allowlisted** | Validated and approved | ✅ Visible in UI |
| **Unclassified** | Not yet reviewed | ❌ Hidden |
| **Denylisted** | Blocked from use | ❌ Hidden |


## What you'll learn

In this section you'll learn how to:

- View tokens by classification (Allowlisted, Unclassified, Denylisted)
- Allowlist tokens to make them visible in the UI
- Denylist unwanted or spam tokens
- Restore previously blocked tokens
- Add new tokens manually


Tokens that are not allowlisted are hidden from standard views but can still be accessed in the Token Management screen under the Unclassified or Denylisted tabs.