> ## Documentation Index
> Fetch the complete documentation index at: https://cobo-docs-feature-cobo-cli.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Verify Valid Address

> <Note>This content applies to WaaS 1.0 only. We highly recommend that you upgrade to [WaaS 2.0](https://www.cobo.com/developers/v2/guides/overview/introduction).</Note> This endpoint checks whether a given cryptocurrency address is valid and returns a boolean value. It also supports memo for certain coins. Authentication is required to access this endpoint.

<Tip> FAQ：[How to verify whether a withdraw address is legitimate?](/v1/faqs/address-management#how-to-verify-whether-a-withdrawal-address-is-legitimate)</Tip>

#### Request

<ParamField query="coin" type="String" required>The cryptocurrency symbol.</ParamField>
<ParamField query="address" type="String" required>The cryptocurrency address.(Address|Memo)</ParamField>

#### Response

<ResponseField name="success" type="bool">request successful or failed</ResponseField>
<ResponseField name="result" type="bool">Whether the address is valid or not.</ResponseField>

<RequestExample>
  ```python Python
  request(
    "GET",
    "/v1/custody/is_valid_address/",
    {
      "coin": "ETH",
      "address": "0x544094588811118b7701cf4a9dea056e775b4b4e",
    },
    api_key, api_secret, host
  )
  ```

  ```javascript JavaScript
  coboFetch('GET', '/v1/custody/is_valid_address/',
          {
              "coin": "ETH",
              "address": "0x544094588811118b7701cf4a9dea056e775b4b4e",
          },
          api_key, api_secret, host
      ).then(res => {
          res.json().then((data)=>{
              console.log(JSON.stringify(data, null, 4));
          })
      }).catch(err => {
          console.log(err)
      });
  ```

  ```go Go
  Request("GET", "/v1/custody/is_valid_address/", map[string]string{
      "coin": "ETH",
      "address": "0x544094588811118b7701cf4a9dea056e775b4b4e",
  })
  ```
</RequestExample>

<ResponseExample>
  ```json
  {
    "success": true,
    "result": true
  }
  ----
  {
    "success": true,
    "result": false
  }
  ```
</ResponseExample>