Get StartedSystem Program IDL
11111111111111111111111111111111Solana System program is the core runtime program handling account creation, SOL transfers, account data allocation, and program ownership assignment. Used in virtually every Solana transaction.
Instructions
Integration Examples
Use the System Program 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 System Program IDL
import idl from "./system program.json";
const PROGRAM_ID = new PublicKey("11111111111111111111111111111111");
// 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.system_Program
.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": "0.0.0",
"name": "system",
"ref": "https://github.com/solana-labs/solana/blob/d3aa9bce26fad697fa6c825933a46137e949adbc/sdk/program/src/system_instruction.rs",
"docs": [
"Create new accounts, allocate account data, assign accounts to owning programs,",
"transfer lamports from System Program owned accounts and pay transacation fees."
],
"instructions": [
{
"name": "CreateAccount",
"docs": [
"Create a new account"
],
"accounts": [
{
"name": "FundingAccount",
"isMut": true,
"isSigner": true,
"docs": [
"Funding account"
]
},
{
"name": "NewAccount",
"isMut": true,
"isSigner": true,
"docs": [
"New account"
]
...Frequently Asked Questions
What is the System Program IDL?
The System Program IDL (Interface Definition Language) is a JSON schema that defines the on-chain program interface for the System Program smart contract on Solana. It describes all available instructions, account structures, events, and custom types that developers need to interact with the System Program program. This IDL contains 12 instructions, 0 account types, 0 events, and 0 type definitions.
How do I use the System Program 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 System Program program address on Solana?
The System Program program is deployed at address 11111111111111111111111111111111 on Solana mainnet. You can verify this on any Solana block explorer.
What version of the System Program IDL is this?
This is version 0.0.0 of the System Program 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.