# Program ABI

The objective of this page is to give a brief overview of the Zeta Cross Program Invocation (CPI) interface. For a more detailed view please refer to the[ Github Repository](https://github.com/zetamarkets/zeta-abi).

### Cross Program Invocations

#### Instructions

The instructions currently supported are as follows:

The instructions currently supported are as follows:

* `initialize_cross_margin_account` - create and initialize a user's margin account
* `initialize_cross_margin_account_manager` - create and initialize a user's margin account manager
* `initialize_open_orders_v3` - create and initialize user's open orders account
* `deposit_v2` - deposit USDC collateral into the margin account
* `withdraw_v2` - withdraw USDC collateral from the margin account
* `place_perp_order_v3` - place a perp order of (price, size, side) on the relevant market
* `cancel_order_xxx` - collection of order cancellation functions, by orderId, clientOrderId, market, etc
* `close_open_orders` - close open orders account
* `liquidate_v2` - trigger liquidation

#### Accounts

The accounts and relevant data that is currently supported (non-exhaustive):

* `State` - contains global parameters relating to all markets
  * Fee percentages
  * Admin pubkeys
  * Platform limits
  * Halt state
* `Pricing` - global mark prices, pricing params and funding information
  * Mark Prices
  * Funding rates
  * Perp and margin params
* `CrossMarginAccount` - individual user margin accounts
  * Balance
  * Positions
  * Orders

For a more detailed view please refer to the [Github Repository](https://github.com/zetamarkets/zeta-abi).

### Ready to start trading?

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