Get StartedOpenBook v2 IDL
opnb2LAfJYbRMAHHvqjCwQxanZn7ReEHp1k81EohpZbOpenBook 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.
Instructions
Account Types
Events
Integration Examples
Use the OpenBook v2 IDL in your application with these code examples for TypeScript, Rust, and 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);IDL JSON Preview
{
"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 defines the on-chain program interface for the OpenBook v2 smart contract on Solana. It describes all available instructions, account structures, events, and custom types that developers need to interact with the OpenBook v2 program. This IDL contains 29 instructions, 6 account types, 8 events, and 32 type definitions.
How do I use the OpenBook v2 IDL in my project?
Download the JSON file and import it in your project. With TypeScript, use the @coral-xyz/anchor package to create a Program instance. In Rust, use anchor-client. For Python, use anchorpy. See the integration examples above for complete code snippets in all three languages.
What is the OpenBook v2 program address on Solana?
The OpenBook v2 program is deployed at address opnb2LAfJYbRMAHHvqjCwQxanZn7ReEHp1k81EohpZb on Solana mainnet. You can verify this on any Solana block explorer.
What version of the OpenBook v2 IDL is this?
This is version 0.1.0 of the OpenBook v2 IDL. IDL versions correspond to specific program deployments and may be updated as the protocol evolves. Always verify compatibility with the on-chain program version before integrating.