> ## Documentation Index
> Fetch the complete documentation index at: https://docs.x402x.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Detector parameters

> Constructor and method parameters for TokenDetector

## Constructor

```ts theme={null}
new TokenDetector(publicClient);
```

## Methods

* `detect(token)` → `TokenDetectionResult`
* `getRecommendedMethod(token)` → `"eip3009" | "permit" | "permit2" | null`
* `initialize(tokens)` → warm up cache
* `getCacheStats/clearCache`

## Signatures and inputs

```ts theme={null}
// Detect a single token
detect(tokenAddress: string): Promise<TokenDetectionResult>;

// Recommend a payment method
getRecommendedMethod(tokenAddress: string): Promise<"eip3009" | "permit" | "permit2" | null>;

// Batch initialize
initialize(tokenAddresses: string[]): Promise<TokenDetectionResult[]>;

// Clear cache
clearCache(tokenAddress?: string): Promise<void>;

// Detect settlement capability of a recipient (EIP-7702 + x402x extensions)
detectSettleMethods(
  client: PublicClient,
  address: string,
  logger?: Logger | null
): Promise<{
  supportsSettleWithPermit: boolean;
  supportsSettleWithERC3009: boolean;
  supportsSettleWithPermit2: boolean;
}>;
```

> Input addresses should be valid EVM addresses (`0x` + 40 hex), case-insensitive internally.