# custody Custody endpoints describe how to create and access custody account holders, custody accounts and transactions. Custody assets are the starting point, each user can only have one custody account per asset. Assets are created by Bitbond at the request of the custody partner. Once an asset has been created a list of all the partner's assets can be fetched with the `/custody_assets` endpoint. To create a custody account for a user you will need the asset ID you wish to create the account for. Once the user has a custody account it is possible to fetch their transactions and create new transactions for the relevant asset. ## Operations - [Assets](https://developers.bitbond.com/operation/operation-get-custody_assets.md) - [User account holders](https://developers.bitbond.com/operation/operation-get-users-parameter-custody_account_holders.md) - [User account holder](https://developers.bitbond.com/operation/operation-post-users-parameter-custody_account_holders.md) - [User account holder](https://developers.bitbond.com/operation/operation-get-users-parameter-custody_account_holders-parameter.md) - [User accounts](https://developers.bitbond.com/operation/operation-get-users-parameter-custody_account_holders-parameter-custody_accounts.md) - [User account](https://developers.bitbond.com/operation/operation-post-users-parameter-custody_account_holders-parameter-custody_accounts.md) - [User account](https://developers.bitbond.com/operation/operation-get-users-parameter-custody_account_holders-parameter-custody_accounts-parameter.md) - [Account balance](https://developers.bitbond.com/operation/operation-get-users-parameter-custody_account_holders-parameter-custody_accounts-parameter-balance.md) - [Account transactions](https://developers.bitbond.com/operation/operation-get-users-parameter-custody_account_holders-parameter-custody_accounts-parameter-transactions.md) - [Transaction](https://developers.bitbond.com/operation/operation-post-users-parameter-custody_account_holders-parameter-custody_accounts-parameter-transactions.md) - [Account transaction with specific ID](https://developers.bitbond.com/operation/operation-get-users-parameter-custody_account_holders-parameter-custody_accounts-parameter-parameter.md) - [Withdrawable balance](https://developers.bitbond.com/operation/operation-get-users-parameter-custody_account_holders-parameter-custody_accounts-parameter-transactions-withdrawable_balance.md) - [Estimated fee](https://developers.bitbond.com/operation/operation-get-users-parameter-custody_account_holders-parameter-custody_accounts-parameter-transactions-estimated_fee.md) - [Balances](https://developers.bitbond.com/operation/operation-get-users-parameter-custody_account_holders-parameter-custody_balances.md) [Powered by Bump.sh](https://bump.sh)