> For the complete documentation index, see [llms.txt](https://help.tokenpocket.pro/developer-cn/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.tokenpocket.pro/developer-cn/agentic-wallet/eip-7715-account-with-permissions/cha-xun-zhi-chi-de-quan-xian-lei-xing.md).
# 查询支持的权限类型
使用 `wallet_getSupportedExecutionPermissions` 获取 TokenPocket 当前支持的权限类型、适用链 ID 及可绑定的规则类型。建议在发起授权前调用，避免请求不支持的 `permission.type` 或 `chainId`。
### RPC 方法
```
wallet_getSupportedExecutionPermissions
```
#### 请求
```typescript
const result = await provider.request({
method: "wallet_getSupportedExecutionPermissions",
params: [],
});
```
#### 响应结构
```typescript
type GetSupportedExecutionPermissionsResult = Record<
string, // permission type
{
chainIds: `0x${string}`[];
ruleTypes: string[]; // 如 ['expiry']
}
>;
```
#### 响应示例
```json
{
"erc20-token-periodic": {
"chainIds": ["0x1", "0x38", "0x89"],
"ruleTypes": ["expiry"]
},
"native-token-periodic": {
"chainIds": ["0x1", "0x38"],
"ruleTypes": ["expiry"]
},
"erc20-token-stream": {
"chainIds": ["0x38", "0x89"],
"ruleTypes": ["expiry"]
},
"native-token-stream": {
"chainIds": ["0x38"],
"ruleTypes": ["expiry"]
}
}
```
> 以上为示意结构，实际返回值以钱包版本与链配置为准。
### 能力探测示例
在发起授权前校验目标链与权限类型：
```typescript
const toHexChainId = (id: number) => `0x${id.toString(16)}` as `0x${string}`;
async function assertPermissionSupported(
provider: {
request: (args: { method: string; params: unknown[] }) => Promise;
},
permissionType: string,
chainId: number,
) {
const supported = (await provider.request({
method: "wallet_getSupportedExecutionPermissions",
params: [],
})) as Record;
const entry = supported[permissionType];
if (!entry) {
throw new Error(`钱包不支持权限类型: ${permissionType}`);
}
const chainHex = toHexChainId(chainId).toLowerCase();
const supportedChains = entry.chainIds.map((id) => id.toLowerCase());
if (!supportedChains.includes(chainHex)) {
throw new Error(`权限 ${permissionType} 不支持 chainId ${chainId}`);
}
return entry;
}
```