# ERC-7540 Router

The ERC7540 Router enables Nodes to interact with asynchronous yield-bearing vaults that implement the ERC7540 interface. This includes protocols with delayed withdrawals, request-claim patterns, and multi-step operations.

#### Key Features

* Manages async deposit/withdrawal flows
* Handles request and claim operations
* Tracks pending and claimable amounts
* Coordinates multi-step transactions

### Request ID

The ERC7540Router expects that async deposits and redemptions returns a request ID of 0, otherwise the functionality reverts. However, some ERC-7540 vaults may return a non-zero request ID, according to future EIPS. In the case of NashPoint, the `router` contract purely uses the `controller` to [discriminate](https://eips.ethereum.org/EIPS/eip-7540#request-ids) the request state.

## Supported Integrations

### Arbitrum One

| Component Name    | Protocol         | Address |
| ----------------- | ---------------- | ------- |
| \[Component Name] | \[Protocol Name] | `0x...` |