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Documentation Index

Fetch the complete documentation index at: https://dev.jup.ag/docs/llms.txt

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Deposit assets into Jupiter Earn vaults using the SDK.
The SDK generates transaction instructions that you can add to your own transaction flow.

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Getting Started

Import the required packages for Solana RPC and Jupiter Earn SDK operations.
1

Import Dependencies

Import the packages you need for Solana RPC and Jupiter Lend (Earn) SDK operations.
import { Connection, PublicKey, Transaction } from "@solana/web3.js";
import BN from "bn.js";
import { getDepositIxs, getMintIxs } from "@jup-ag/lend/earn";
2

Build Instructions

Use the Jupiter Earn SDK to generate deposit instructions.
const connection = new Connection("https://api.mainnet-beta.solana.com");
const signer = new PublicKey("YOUR_WALLET_ADDRESS");

const { ixs: depositIxs } = await getDepositIxs({
    connection,
    signer,
    asset: new PublicKey("EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v"), // USDC Mint
    amount: new BN(10_000_000), // 10 USDC (6 decimals)
  });

console.log('Deposit Instructions:', depositIxs);
Important
  • amount = underlying asset amount being deposited (e.g. USDC)
  • Not vault shares
  • To deposit by specifying the number of vault shares to receive, use getMintIxs

​
Complete Flow

This example builds, signs, and sends a deposit transaction.
1

Import Dependencies

Import the packages you need for Solana RPC and Jupiter Lend (Earn) SDK operations.
import {
 Connection,
 Keypair,
 PublicKey,
 Transaction,
 sendAndConfirmTransaction,
} from "@solana/web3.js";
import BN from "bn.js";
import { getDepositIxs } from "@jup-ag/lend/earn";
import fs from "fs";
import path from "path";
2

Set up connection and deposit parameters

Set your RPC, signer, asset mint, and deposit amount.
const RPC_URL = "https://api.mainnet-beta.solana.com";
const userKeypair = Keypair.generate(); // <-- Replace this with your wallet
const ASSET_MINT = new PublicKey("EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v");
const DEPOSIT_AMOUNT = new BN(10_000_000);
If your signer is stored as a local JSON keypair file, you can load it using the helper function below.
function loadKeypair(keypairPath: string): Keypair {
  const fullPath = path.resolve(keypairPath);
  const secret = JSON.parse(fs.readFileSync(fullPath, "utf8"));
  return Keypair.fromSecretKey(new Uint8Array(secret));
}
Then initialise your signer:
const userKeypair = loadKeypair("/path/to/your/keypair.json");
3

Build Deposit Instructions

Build a transaction from the deposit instructions, set blockhash and fee payer, then sign with the user keypair and send the transaction.
const { ixs: depositIxs } = await getDepositIxs({
    connection,
    signer,
    asset: ASSET_MINT,
    amount: DEPOSIT_AMOUNT,
});
4

Build and send transaction

Build a transaction from the deposit instructions, set blockhash and fee payer, then sign with the user keypair and send the transaction.
const latestBlockhash = await connection.getLatestBlockhash();
const transaction = new Transaction({
    feePayer: signer,
    ...latestBlockhash,
});
transaction.add(...depositIxs);

const signature = await sendAndConfirmTransaction(connection, transaction, [userKeypair]);
console.log("Deposit successful! Signature:", signature);
You have successfully deposited your assets into Jupiter Earn Vaults. Your assets are now earning yield.

​
Full code example

import {
    Connection,
    Keypair,
    PublicKey,
    Transaction,
    sendAndConfirmTransaction,
} from "@solana/web3.js";
import BN from "bn.js";
import { getDepositIxs } from "@jup-ag/lend/earn";
import fs from "fs";
import path from "path";


const KEYPAIR_PATH = "/path/to/your/keypair.json"; // Path to your local keypair file (update this path)
const ASSET_MINT = new PublicKey("EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v"); // Asset mint to deposit (USDC for example)
const DEPOSIT_AMOUNT = new BN(10_000_000); // Amount to deposit, in smallest units (e.g., 1 USDC = 1_000_000)
const RPC_URL = "https://api.mainnet-beta.solana.com"; // RPC endpoint

function loadKeypair(keypairPath: string): Keypair {
    const fullPath = path.resolve(keypairPath);
    const secret = JSON.parse(fs.readFileSync(fullPath, "utf8"));
    return Keypair.fromSecretKey(new Uint8Array(secret));
}

// 1. Load user keypair and establish connection
const userKeypair = loadKeypair(KEYPAIR_PATH);
const connection = new Connection(RPC_URL, { commitment: "confirmed" });
const signer = userKeypair.publicKey;

// 2. Get deposit instructions from SDK
const { ixs: depositIxs } = await getDepositIxs({
    connection,
    signer,
    asset: ASSET_MINT,
    amount: DEPOSIT_AMOUNT,
});

if (!depositIxs?.length) {
    throw new Error("No deposit instructions returned by Jupiter Lend SDK.");
}

// 3. Build the transaction with latest blockhash and add deposit instructions
// This prepares the transaction ready to be signed and sent
const latestBlockhash = await connection.getLatestBlockhash();
const transaction = new Transaction({
    feePayer: signer,
    ...latestBlockhash,
});
transaction.add(...depositIxs);
transaction.sign(userKeypair);

// 4. Sign and send the transaction
const signature = await sendAndConfirmTransaction(connection, transaction, [userKeypair]);
console.log("Deposit successful! Signature:", signature);