OpenBook v2 IDL
OpenBook v2 is the next-generation fully on-chain order book DEX on Solana. Features improved permissionless market creation, transparent order matching, event consumption, and optimized settlement.
Program address
opnb2LAfJYbRMAHHvqjCwQxanZn7ReEHp1k81EohpZb- Instructions
- 29
- Accounts
- 6
- Events
- 8
- Types
- 32
What the program exposes
Instructions 29
- createMarket
- closeMarket
- createOpenOrdersIndexer
- closeOpenOrdersIndexer
- createOpenOrdersAccount
- closeOpenOrdersAccount
- placeOrder
- editOrder
- editOrderPegged
- placeOrders
- cancelAllAndPlaceOrders
- placeOrderPegged
- and 17 more
Accounts 6
- Market
- OpenOrdersAccount
- OpenOrdersIndexer
- StubOracle
- BookSide
- EventHeap
Events 8
- DepositLog
- FillLog
- MarketMetaDataLog
- TotalOrderFillEvent
- SetDelegateLog
- SettleFundsLog
- SweepFeesLog
- OpenOrdersPositionLog
Use it in your code
Load the OpenBook v2 IDL with Anchor in TypeScript, Rust or Python.
import { Connection, PublicKey } from "@solana/web3.js";
import { Program, AnchorProvider, Idl } from "@coral-xyz/anchor";
// Load the OpenBook v2 IDL
import idl from "./openbook v2.json";
const PROGRAM_ID = new PublicKey("opnb2LAfJYbRMAHHvqjCwQxanZn7ReEHp1k81EohpZb");
// Set up the provider and program
const connection = new Connection("https://api.mainnet-beta.solana.com");
const provider = new AnchorProvider(connection, wallet, {
commitment: "confirmed",
});
const program = new Program(idl as Idl, provider);
// Fetch and decode an account
const accountData = await program.account.openBook_v2
.fetch(accountPublicKey);
console.log("Account data:", accountData);
// Build and send an instruction
const tx = await program.methods
.initialize(/* ...args */)
.accounts({
/* ...required accounts */
})
.rpc();
console.log("Transaction signature:", tx);use anchor_client::solana_sdk::pubkey::Pubkey;
use anchor_client::solana_sdk::signature::Keypair;
use anchor_client::{Client, Cluster};
use std::str::FromStr;
// OpenBook v2 program ID
const PROGRAM_ID: &str = "opnb2LAfJYbRMAHHvqjCwQxanZn7ReEHp1k81EohpZb";
fn main() -> anyhow::Result<()> {
let payer = Keypair::new();
let client = Client::new(Cluster::Mainnet, &payer);
let program_id = Pubkey::from_str(PROGRAM_ID)?;
let program = client.program(program_id)?;
// Fetch and deserialize an account
let account: OpenBook_v2Account = program.account(account_pubkey)?;
println!("Account data: {:?}", account);
// Build and send a transaction
let tx = program
.request()
.accounts(open_book_v2::accounts::Initialize {
// ...required accounts
})
.args(open_book_v2::instruction::Initialize {
// ...instruction args
})
.send()?;
println!("Transaction signature: {}", tx);
Ok(())
}from solana.rpc.api import Client
from solders.pubkey import Pubkey
from anchorpy import Program, Provider, Wallet
import json
# Load the OpenBook v2 IDL
with open("openbook v2.json") as f:
idl_data = json.load(f)
PROGRAM_ID = Pubkey.from_string("opnb2LAfJYbRMAHHvqjCwQxanZn7ReEHp1k81EohpZb")
# Set up the provider and program
client = Client("https://api.mainnet-beta.solana.com")
provider = Provider(client, Wallet.local())
program = Program(idl_data, PROGRAM_ID, provider)
# Fetch and decode an account
account = await program.account["OpenBook_v2"].fetch(account_pubkey)
print(f"Account data: {account}")
# Build and send an instruction
tx = await program.rpc["initialize"](
# ...instruction args
ctx=program.context(
accounts={
# ...required accounts
}
)
)
print(f"Transaction signature: {tx}")The JSON
The first 30 lines of openbook v2.json.
{
"version": "0.1.0",
"name": "openbook_v2",
"instructions": [
{
"name": "createMarket",
"docs": [
"Create a [`Market`](crate::state::Market) for a given token pair."
],
"accounts": [
{
"name": "market",
"isMut": true,
"isSigner": true
},
{
"name": "marketAuthority",
"isMut": false,
"isSigner": false
},
{
"name": "bids",
"isMut": true,
"isSigner": false,
"docs": [
"Accounts are initialized by client,",
"anchor discriminator is set first when ix exits,"
]
},
{
...Frequently asked questions
What is the OpenBook v2 IDL?
The OpenBook v2 IDL (Interface Definition Language) is a JSON schema that describes the on-chain program interface for the OpenBook v2 smart contract on Solana. It defines all available instructions, account structures, events, and types needed to interact with the program. This one has 29 instructions, 6 account types, 8 events and 32 type definitions.
How do I use the OpenBook v2 IDL in my project?
You can use the OpenBook v2 IDL with Anchor framework clients in TypeScript (@coral-xyz/anchor), Rust (anchor-client), or Python (anchorpy). Download the JSON file, import it in your project, and use it to create a Program instance that can call instructions and decode accounts.
What is the OpenBook v2 program address on Solana?
The OpenBook v2 program is deployed at address opnb2LAfJYbRMAHHvqjCwQxanZn7ReEHp1k81EohpZb on Solana mainnet.
What version of the OpenBook v2 IDL is this?
This is version 0.1.0 of the OpenBook v2 IDL. IDL versions follow program deployments and change as the protocol evolves, so check it against the program on-chain before you integrate.
Build on OpenBook v2 with AllenHark
Stream the program's accounts and transactions with Yellowstone gRPC, read its state over Solana RPC, or see its transactions before the block is built with ShredStream. To trade against it, try the trading bots or the PumpFun sniper.
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