> ## Documentation Index
> Fetch the complete documentation index at: https://docs.portalhq.io/llms.txt
> Use this file to discover all available pages before exploring further.

# delegations.revoke

> Revoke a token delegation.

## Function Signature

```dart theme={null}
Future<DelegationRevokeResponse> revoke({
  required String chain,
  required String token,
  required String delegateAddress,
})
```

## Description

Remove a delegate's permission to transfer tokens on your behalf. Works across EVM and Solana chains.

## Parameters

| Parameter         | Type     | Required | Description                                             |
| ----------------- | -------- | -------- | ------------------------------------------------------- |
| `chain`           | `String` | Yes      | CAIP-2 chain ID (e.g., `"eip155:11155111"` for Sepolia) |
| `token`           | `String` | Yes      | Token symbol or address (e.g., `"USDC"`)                |
| `delegateAddress` | `String` | Yes      | The address to revoke delegation from                   |

## Returns

**`DelegationRevokeResponse`** - An object containing:

| Property              | Type                                       | Description                                                      |
| --------------------- | ------------------------------------------ | ---------------------------------------------------------------- |
| `transactions`        | `List<DelegationConstructedTransaction?>?` | Array of constructed transactions (for EVM chains)               |
| `encodedTransactions` | `List<String?>?`                           | Array of encoded transaction strings (for Solana)                |
| `metadata`            | `DelegationRevokeMetadata?`                | Revocation metadata with chain ID, revoked address, token symbol |

## Example

### EVM

```dart theme={null}
import 'package:portal_flutter/portal_flutter.dart';

final portal = Portal();

final response = await portal.delegations.revoke(
  chain: 'eip155:11155111',
  token: 'USDC',
  delegateAddress: '0x1234...',
);

// Sign and send the transaction
final tx = response.transactions!.first!;
final txResponse = await portal.request(
  chainId: 'eip155:11155111',
  method: 'eth_sendTransaction',
  params: [
    {'from': tx.from, 'to': tx.to, 'data': tx.data, 'value': tx.value}
  ],
);
print('Tx hash: ${txResponse.result}');
```

### Solana

```dart theme={null}
final response = await portal.delegations.revoke(
  chain: 'solana:EtWTRABZaYq6iMfeYKouRu166VU2xqa1',
  token: 'USDC',
  delegateAddress: '7smgSuU5mjP7QY5yWGdaTfgKn8hUWwvQgfvgcZB3HmJi',
);

// Sign and send the transaction
final encodedTx = response.encodedTransactions!.first!;
final txResponse = await portal.request(
  chainId: 'solana:EtWTRABZaYq6iMfeYKouRu166VU2xqa1',
  method: 'sol_signAndSendTransaction',
  params: [encodedTx],
);
print('Tx hash: ${txResponse.result}');
```

## Errors

| Code                | Description                      |
| ------------------- | -------------------------------- |
| `NOT_INITIALIZED`   | Portal was not initialized       |
| `DELEGATION_FAILED` | The delegation revocation failed |

## Related

* [Manage Token Delegations guide](../guide/delegations)
* [delegations.approve](./delegations-approve)
* [delegations.getStatus](./delegations-getstatus)
* [delegations.transferFrom](./delegations-transferfrom)