SPL Memo IDL

SPL Memo program attaches arbitrary text data to Solana transactions. Used for transaction labeling, compliance notes, and on-chain messaging in payments and DeFi operations.

  • spl
  • v3.0.1
  • Core / Standard

Program address

MemoSq4gqABAXKb96qnH8TysNcWxMyWCqXgDLGmfcHr
A quiet stack of pagesAn abstract drawing of light on the page's dark ground. A neat stack of thin, solid pages, the top one lit, with faint streams of light drifting toward it from the left.A quiet stack of pagesAn abstract drawing of light on the page's dark ground. A neat stack of thin, solid pages, the top one lit, with faint streams of light drifting toward it from the left.
Instructions
0
Accounts
0
Events
0
Types
0

Use it in your code

Load the SPL Memo 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 SPL Memo IDL
import idl from "./spl memo.json";

const PROGRAM_ID = new PublicKey("MemoSq4gqABAXKb96qnH8TysNcWxMyWCqXgDLGmfcHr");

// 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.sPL_Memo
  .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);

The JSON

The first 30 lines of spl memo.json.

spl memo.json
{
  "version": "3.0.1",
  "name": "spl_memo",
  "instructions": [],
  "metadata": {
    "instruction_selector_type": "single-instruction"
  }
}
...

Frequently asked questions

What is the SPL Memo IDL?

The SPL Memo IDL (Interface Definition Language) is a JSON schema that describes the on-chain program interface for the SPL Memo smart contract on Solana. It defines all available instructions, account structures, events, and types needed to interact with the program. This one has 0 instructions, 0 account types, 0 events and 0 type definitions.

How do I use the SPL Memo IDL in my project?

You can use the SPL Memo 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 SPL Memo program address on Solana?

The SPL Memo program is deployed at address MemoSq4gqABAXKb96qnH8TysNcWxMyWCqXgDLGmfcHr on Solana mainnet.

What version of the SPL Memo IDL is this?

This is version 3.0.1 of the SPL Memo 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 SPL Memo 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.

Browse all Solana IDLs