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

# Pre-encryption Request Parameters

Refer to the business request parameter format definition of each interface for specific formats. Example reference:

### Request Parameter Explanation

<RequestExample>
  ```mdx Original business request parameters before encryption theme={null}
  {
    "tenantUserId": "tenant_001",
    "chainName": "ETH",
    "symbol": "USDT"
  }
  ```
</RequestExample>

<ParamField path="tenantUserId" type="string" required>
  tenantUserId refers to the user ID in the merchant system, not the merchant's ID in the WaaS system.
</ParamField>

<ParamField path="chainName" type="string" required>
  Name of the blockchain, e.g.: ETH, TRON, ...
</ParamField>

<ParamField path="symbol" type="string" required>
  Currency symbol, e.g.: USDT, USDC, PHT, ...
</ParamField>