Self-custody accounts - Mintlify Starter Kit

A self-custody account is a vault that holds crypto in blockchain wallets you control. The vault has a wallet for each chain you request, listed in wallets. Its asset is null because it can hold any supported asset on those chains.

How it works

Step	What happens	API
Create	Create a vault with the chains you need. Wallet addresses can arrive after the response, so wait until `walletsGenerated` is `true`.	Create a Vault
Receive	Share the wallet address for the asset’s chain.	Deposit crypto
Hold	The vault keeps a balance per asset and chain.	Balances
Send	Transfer to a contact or another vault, or convert on the way out. Every outgoing transaction waits for your approval.	Pay out to a wallet

Example

A treasury team keeps USDC on Ethereum and Polygon in one vault. Customers deposit to the vault’s address on either chain. The team sends USDC to a saved contact with a transfer, or converts it to USD and pays out to a bank account.

Deposit crypto

Receive crypto from an external wallet.

Multi-currency accounts

Receive, hold, and send fiat per currency.

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