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

# Address Management

> Frequently Asked Questions about Address Management 

<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>
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### How to batch-generate addresses?

<Expandable title="Answer">
  <ResponseField>You may use the [POST /v1/custody/new\_addresses/](/v1/api-references/custody-wallet/new_addresses) endpoint to batch-generate addresses under a Custodial Wallet.
  To batch-generate addresses under an MPC Wallet, you may use the [POST /v1/custody/mpc/generate\_addresses/](/v1/api-references/mpc-wallet/mpc_generate_addresses) endpoint instead. A maximum of 200 addresses can be generated in a single request.</ResponseField>
</Expandable>

### How to verify whether a withdraw address is legitimate?

<Expandable title="Answer">
  <ResponseField>You can use the [GET /v1/custody/is\_valid\_address/](/v1/api-references/custody-wallet/is_valid_address) endpoint to query whether a withdraw address under a Custodial Wallet is legitimate.
  For an MPC Wallet, please use the [GET /v1/custody/mpc/is\_valid\_address/](/v1/api-references/mpc-wallet/mpc_is_valid_address) endpoint instead. If the response returns an zero, it indicates that the address is deemed invalid. If you are using WaaS 2.0, validate addresses with the [Check address validity](/v2/api-references/wallets/check-address-validity) operation instead. For more information, see [Validate addresses](/v2/guides/transactions/validate-addresses).</ResponseField>
</Expandable>