<PageHeader title="supported()" description="Get the list of supported networks and payment kinds." />

## Usage

```typescript
const result = await facilitator.supported();
```

## Response

```typescript
interface SupportedResponse {
  kinds: PaymentKind[];
  signers: Record<string, string[]>;
  extensions: string[];
}

interface PaymentKind {
  x402Version: 1 | 2;
  scheme: string;
  network: string;
  extra?: {
    feePayer?: string;
  };
}
```

## Example

```typescript
const supported = await facilitator.supported();

// List all supported networks
supported.kinds.forEach(kind => {
  console.log(`${kind.network} (v${kind.x402Version})`);
});

// Check if a specific network is supported
const supportsBase = supported.kinds.some(
  k => k.network === 'base' || k.network === 'eip155:8453'
);

// Get signer addresses
console.log('EVM signers:', supported.signers['eip155:*']);
console.log('Solana signers:', supported.signers['solana:*']);
```

## Response Example

```json
{
  "kinds": [
    { "x402Version": 1, "scheme": "exact", "network": "base" },
    { "x402Version": 2, "scheme": "exact", "network": "eip155:8453" },
    { "x402Version": 1, "scheme": "exact", "network": "solana", "extra": { "feePayer": "..." } },
    { "x402Version": 2, "scheme": "exact", "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp", "extra": { "feePayer": "..." } }
  ],
  "signers": {
    "eip155:*": ["0x..."],
    "solana:*": ["..."]
  },
  "extensions": []
}
```
