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Prefer the UI? You can create a vault without code at vaults.ranger.finance/create. See Quick Start (UI).

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Setup

Import the required dependencies: 
import { BN } from "@coral-xyz/anchor";
import { VaultConfig, VaultParams, VoltrClient } from "@voltr/vault-sdk";
import {
  Connection,
  Keypair,
  PublicKey,
  sendAndConfirmTransaction,
} from "@solana/web3.js";
import fs from "fs";

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Step-by-Step Guide

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1. Prepare Vault Configuration

const vaultConfig: VaultConfig = {
  maxCap: new BN("18446744073709551615"),         // Uncapped (u64 max) — see warning below
  startAtTs: new BN(0),                           // Activation timestamp (0 = immediate)
  lockedProfitDegradationDuration: new BN(86400), // 24 hours in seconds
  managerPerformanceFee: 1000,                    // 10% in basis points
  adminPerformanceFee: 500,                       // 5% in basis points
  managerManagementFee: 50,                       // 0.5% in basis points
  adminManagementFee: 25,                         // 0.25% in basis points
  redemptionFee: 10,                              // 0.1% in basis points
  issuanceFee: 10,                                // 0.1% in basis points
  withdrawalWaitingPeriod: new BN(0),             // Waiting period in seconds (0 = immediate)
};

const vaultParams: VaultParams = {
  config: vaultConfig,
  name: "My Ranger Earn Vault",                         // Max 32 characters
  description: "Short vault strategy description", // Max 64 characters
};
Critical: maxCap of 0 means ZERO capacity, not unlimited. Setting maxCap: new BN(0) will prevent all deposits. For an uncapped vault, use new BN("18446744073709551615") (u64 max value).
Description limit: The description field is limited to 64 characters. Exceeding this limit will cause the vault creation transaction to fail.

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2. Define Required Variables

// File paths for keypairs
const adminFilePath = "/path/to/admin.json";
const managerFilePath = "/path/to/manager.json";

// Network and asset configuration
const assetMintAddress = "..."; // Your asset token mint
const solanaRpcUrl = "your-solana-rpc-url";

// Load keypairs
const adminKp = Keypair.fromSecretKey(
  Uint8Array.from(JSON.parse(fs.readFileSync(adminFilePath, "utf-8")))
);
const managerKp = Keypair.fromSecretKey(
  Uint8Array.from(JSON.parse(fs.readFileSync(managerFilePath, "utf-8")))
);

// Generate vault keypair
const vaultKp = Keypair.generate();

// Initialize client
const connection = new Connection(solanaRpcUrl);
const client = new VoltrClient(connection);

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3. Create Vault Initialization Instruction

const createVaultIx = await client.createInitializeVaultIx(
  vaultParams,
  {
    vault: vaultKp,
    vaultAssetMint: new PublicKey(assetMintAddress),
    admin: adminKp.publicKey,
    manager: managerKp.publicKey,
    payer: adminKp.publicKey,
  }
);

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4. Send and Confirm the Transaction

const txSig = await sendAndConfirmTransaction(
  [createVaultIx],
  connection,
  [adminKp, vaultKp]
);

console.log("Vault created:", vaultKp.publicKey.toBase58());
console.log("Transaction:", txSig);
Save your vault public key — you’ll need it for all subsequent operations.

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Account Structure

The vault account contains the following data: 
interface Vault {
  name: string;           // Max 32 bytes
  description: string;    // Max 64 bytes
  asset: {
    mint: PublicKey;      // Token mint address
    idleAuth: PublicKey;  // Idle token authority
    totalValue: BN;       // Total assets in vault
  };
  vaultConfiguration: {
    maxCap: BN;
    startAtTs: BN;
    lockedProfitDegradationDuration: BN;
    withdrawalWaitingPeriod: BN;
  };
  feeConfiguration: {
    managerPerformanceFee: number;   // In basis points
    adminPerformanceFee: number;
    managerManagementFee: number;
    adminManagementFee: number;
    redemptionFee: number;
    issuanceFee: number;
  };
  feeState: {
    accumulatedLpAdminFees: BN;
    accumulatedLpManagerFees: BN;
    accumulatedLpProtocolFees: BN;
  };
  highWaterMark: {
    highestAssetPerLpDecimalBits: BN;
    lastUpdatedTs: BN;
  };
  admin: PublicKey;
  manager: PublicKey;
}

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What’s Next?

Your vault won’t generate yield yet. After creation, deposited funds sit idle in the vault’s token account. You must:
  1. Set up LP token metadata so wallets display your token correctly
  2. Initialize strategies to connect to DeFi protocols
  3. Allocate funds to move idle funds into strategies

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Important Considerations

  1. Key Management: Keep admin and manager keys separate. Use different keypairs for different environments. Never commit private keys to version control.
  2. Fee Configuration: Management fees typically 0.25% - 2% (25-200 basis points). Performance fees typically 5% - 20% (500-2000 basis points). Consider the impact on user returns.
  3. Asset Handling: Validate token decimals match between asset and LP tokens. Set appropriate maxCap to manage risk. Account for minimum deposit requirements.
  1. Initialization Failures: Verify account rent exemption. Check authority permissions. Ensure description is within 64 characters.
  2. Transaction Failures: Monitor for insufficient SOL. Handle RPC timeouts. Implement proper retry logic.
For additional support, refer to the Ranger Earn SDK documentation or example scripts.