AnySwap

TypeScript client library for AnySwap protocol - a multi-token Balancer-style AMM on Solana

Installation

npm install anyswap
# or
yarn add anyswap
# or
pnpm add anyswap

Features

• 🔄 Multi-token Swaps: Swap between multiple tokens in a single transaction
• 💧 Flexible Liquidity: Add/remove liquidity with custom token amounts
• ⚖️ Weighted Pools: Balancer-style weighted constant product formula
• 🎯 Type-safe: Full TypeScript support with auto-generated types from IDL
• ⚡ Optimized: Efficient compute unit usage for complex operations

Quick Start

import { AnySwap } from 'anyswap';
import { AnchorProvider } from '@coral-xyz/anchor';
import { Connection, PublicKey } from '@solana/web3.js';
import { BN } from '@coral-xyz/anchor';

// Initialize
const connection = new Connection('https://api.devnet.solana.com');
const provider = new AnchorProvider(connection, wallet, { commitment: 'confirmed' });
const client = new AnySwap(provider);

// Create a pool
const result = await client.createPool(
  new BN(5),      // fee numerator
  new BN(1000),   // fee denominator
  adminPublicKey
);

// Add token to pool
await client.addTokenToPool(
  poolPublicKey,
  tokenMintPublicKey,
  new BN(50),      // weight
  new BN(1000000), // initial liquidity
  existingVaults
);

// Swap tokens
await client.swap(
  poolPublicKey,
  [{ amount: new BN(100), vault: vaultA, user: userAccountA }], // inputs
  [{ amount: new BN(90), vault: vaultB, user: userAccountB }]   // outputs
);

API Reference

Constructor

new AnySwap(provider: Provider)

Methods

Pool Management

• createPool(feeNumerator: BN, feeDenominator: BN, admin: PublicKey): Promise<CreatePoolResult>
• getPoolInfo(pool: PublicKey): Promise<PoolInfo>

Token Operations

• addTokenToPool(pool: PublicKey, mint: PublicKey, weight: BN, liquidity: BN, existingVaults: PublicKey[]): Promise<string>
• removeTokenFromPool(pool: PublicKey, mint: PublicKey, admin?: PublicKey): Promise<string>
• modifyTokenWeight(pool: PublicKey, mint: PublicKey, newWeight: BN, admin?: PublicKey): Promise<string>

Liquidity

• addLiquidity(pool: PublicKey, amounts: BN[], userTokenAccounts: PublicKey[], vaultAccounts: PublicKey[]): Promise<string>
• removeLiquidity(pool: PublicKey, burnAmount: BN, userTokenAccounts: PublicKey[], vaultAccounts: PublicKey[]): Promise<string>

Swap

• swap(pool: PublicKey, inlets: SwapInput[], outlets: SwapOutput[]): Promise<string>

Admin

• modifyFee(pool: PublicKey, feeNumerator: BN, feeDenominator: BN, admin?: PublicKey): Promise<string>

Examples

See the examples directory for complete working examples.

Development

# Install dependencies
npm install

# Build
npm run build

# Run tests
npm test

License

MIT

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

Links

• Documentation
• GitHub Repository
• Report Issues