Vidar AMM SDK

TypeScript SDK for interacting with the Vidar AMM smart contracts on the Solana blockchain. Supports liquidity provision, staking, rewards claiming, token swaps (including optional commit-reveal), and full pool lifecycle management.

Installation

npm install @blockchainbros/vidar-amm-sdk

Core Concepts

LP Tokens (lpMint)

When you provide liquidity, you receive LP tokens which represent your ownership share in a pool. These tokens are minted via lpMint.

• Add liquidity → mint LP tokens
• Remove liquidity → burn LP tokens
• Stake LP tokens → lock them for yield rewards

Vaults

• vaultA, vaultB: Store the two assets of the pool
• feeVault: Accumulates trading fees (90% to LPs, 10% to admin)
• stakingRewardVault: Distributes staking rewards (from fees, not inflation)
• lpStakeVault: Holds LP tokens from stakers

SDK Usage

Initialize SDK

import { loadVidarAmm } from '@blockchainbros/vidar-amm-sdk';

const program = loadVidarAmm(
  'https://api.mainnet-beta.solana.com',
  wallet, // Anchor-compatible wallet
  'confirmed'
);

Pool Lifecycle

Initialize Pool

import { initializePool } from '@blockchainbros/vidar-amm-sdk';

const tx = await initializePool(program, {
  payer: wallet.publicKey,
  pool: new PublicKey('...'),
  authority: new PublicKey('...'),
  tokenA: new PublicKey('...'),
  tokenB: new PublicKey('...'),
  vaultA: new PublicKey('...'),
  vaultB: new PublicKey('...'),
  feeVault: new PublicKey('...'),
  stakingRewardVault: new PublicKey('...'),
  lpStakeVault: new PublicKey('...'),
  lpMint: new PublicKey('...')
}, {
  feeBasisPoints: 30,
  tickSpacing: 60,
  lowerTick: -60,
  upperTick: 60
});

Liquidity Operations

Add Liquidity

import { addLiquidity } from '@blockchainbros/vidar-amm-sdk';

const tx = await addLiquidity(program, {
  user: wallet.publicKey,
  pool: new PublicKey('...'),
  userTokenA: new PublicKey('...'),
  userTokenB: new PublicKey('...'),
  vaultA: new PublicKey('...'),
  vaultB: new PublicKey('...'),
  lpMint: new PublicKey('...'),
  userLpToken: new PublicKey('...'),
  authority: new PublicKey('...'),
  position: new PublicKey('...')
}, new BN('1000000000'), new BN('1000000000'));

Remove Liquidity

import { removeLiquidity } from '@blockchainbros/vidar-amm-sdk';

const tx = await removeLiquidity(program, {
  user: wallet.publicKey,
  pool: new PublicKey('...'),
  vaultA: new PublicKey('...'),
  vaultB: new PublicKey('...'),
  userTokenA: new PublicKey('...'),
  userTokenB: new PublicKey('...'),
  lpMint: new PublicKey('...'),
  userLpToken: new PublicKey('...'),
  position: new PublicKey('...'),
  authority: new PublicKey('...')
}, new BN('1000000000'));

Swap Operations

Instant Swap

import { swap } from '@blockchainbros/vidar-amm-sdk';

const tx = await swap(program, {
  user: wallet.publicKey,
  pool: new PublicKey('...'),
  userSource: new PublicKey('...'),
  userDestination: new PublicKey('...'),
  vaultSource: new PublicKey('...'),
  vaultDestination: new PublicKey('...'),
  feeVault: new PublicKey('...'),
  stakingRewardVault: new PublicKey('...'),
  authority: new PublicKey('...')
}, new BN('1000000000'), new BN('900000000'));

Commit-Reveal Swap (if enabled)

import { swapCommit, swapReveal } from '@blockchainbros/vidar-amm-sdk';

// 1. Commit hash
await swapCommit(program, {
  user: wallet.publicKey,
  commitIndex: new PublicKey('...'),
  pool: new PublicKey('...')
}, hash, nonce);

// 2. Reveal with actual amounts and preimage
await swapReveal(program, {
  user: wallet.publicKey,
  pool: new PublicKey('...'),
  commit: new PublicKey('...'),
  vaultSource: new PublicKey('...'),
  vaultDestination: new PublicKey('...'),
  userSource: new PublicKey('...'),
  userDestination: new PublicKey('...'),
  feeVault: new PublicKey('...'),
  stakingRewardVault: new PublicKey('...'),
  authority: new PublicKey('...')
}, amountIn, minAmountOut, deadline, nonce);

Staking & Rewards

Stake LP Tokens

import { stake } from '@blockchainbros/vidar-amm-sdk';

await stake(program, {
  user: wallet.publicKey,
  pool: new PublicKey('...'),
  userLpToken: new PublicKey('...'),
  stakeVault: new PublicKey('...'),
  authority: new PublicKey('...'),
  stakeAccount: new PublicKey('...')
}, new BN('1000000000'));

Unstake

import { unstake } from '@blockchainbros/vidar-amm-sdk';

await unstake(program, {
  user: wallet.publicKey,
  pool: new PublicKey('...'),
  userLpToken: new PublicKey('...'),
  stakeVault: new PublicKey('...'),
  stakeAccount: new PublicKey('...'),
  authority: new PublicKey('...')
}, new BN('1000000000'));

Claim Rewards

import { claimRewards } from '@blockchainbros/vidar-amm-sdk';

await claimRewards(program, {
  user: wallet.publicKey,
  pool: new PublicKey('...'),
  stakeAccount: new PublicKey('...'),
  stakingRewardVault: new PublicKey('...'),
  lpStakeVault: new PublicKey('...'),
  userRewardAccount: new PublicKey('...'),
  authority: new PublicKey('...')
});

Fee & Reward Distribution Model

• 90% of trading fees go to LPs (automatically added to the pool)
• 10% of trading fees go to protocol feeVault (for admin use)
• No inflation: all rewards are from real volume and protocol usage

License

MIT