Stable Layer SDK

A TypeScript SDK for interacting with the Stable Layer protocol on the Sui blockchain. It supports minting and burning stablecoins, and claiming yield farming rewards.

Installation

npm install stable-layer-sdk @mysten/sui @mysten/bcs

API Reference

StableLayerClient

import { StableLayerClient } from "stable-layer-sdk";

const client = new StableLayerClient({
  network: "mainnet" | "testnet",
  sender: "0xYOUR_SUI_ADDRESS",
});

Transaction Methods

buildMintTx(options)

Mint stablecoins by depositing USDC. Automatically deposits into vault farm.

Parameter	Type	Description
tx	Transaction	Sui transaction object
stableCoinType	string	Target stablecoin type (e.g. 0x...::btc_usdc::BtcUSDC)
usdcCoin	Coin	Input USDC coin reference
amount	bigint	Amount to mint
autoTransfer	boolean?	If false, returns the resulting Coin object

buildBurnTx(options)

Burn stablecoins to redeem USDC.

Parameter	Type	Description
tx	Transaction	Sui transaction object
stableCoinType	string	Stablecoin type to burn
amount	bigint?	Specific amount to burn
all	boolean?	If true, burn entire balance

buildClaimTx(options)

Claim accumulated yield farming rewards.

Parameter	Type	Description
tx	Transaction	Sui transaction object
stableCoinType	string	Stablecoin type to claim rewards for

Query Methods

getTotalSupply()

Returns the total stablecoin supply across all coin types.

getTotalSupplyByCoinType(type: string)

Returns the supply for a specific stablecoin type.

Usage Examples

Mint Stablecoins

import { Transaction, coinWithBalance } from "@mysten/sui/transactions";
import { SuiClient, getFullnodeUrl } from "@mysten/sui/client";
import { Ed25519Keypair } from "@mysten/sui/keypairs/ed25519";
import { StableLayerClient } from "stable-layer-sdk";

const client = new StableLayerClient({
  network: "mainnet",
  sender: "0xYOUR_ADDRESS",
});

const suiClient = new SuiClient({ url: getFullnodeUrl("mainnet") });
const keypair = Ed25519Keypair.fromSecretKey(YOUR_PRIVATE_KEY);

const tx = new Transaction();
await client.buildMintTx({
  tx,
  stableCoinType: "0x6d9fc...::btc_usdc::BtcUSDC",
  usdcCoin: coinWithBalance({
    balance: BigInt(1_000_000),
    type: "0xdba34...::usdc::USDC",
  })(tx),
  amount: BigInt(1_000_000),
});

const result = await suiClient.signAndExecuteTransaction({
  transaction: tx,
  signer: keypair,
});

Burn Stablecoins

const tx = new Transaction();
await client.buildBurnTx({
  tx,
  stableCoinType: "0x6d9fc...::btc_usdc::BtcUSDC",
  amount: BigInt(500_000),
});

await suiClient.signAndExecuteTransaction({ transaction: tx, signer: keypair });

Claim Rewards

const tx = new Transaction();
await client.buildClaimTx({
  tx,
  stableCoinType: "0x6d9fc...::btc_usdc::BtcUSDC",
});

await suiClient.signAndExecuteTransaction({ transaction: tx, signer: keypair });

Query Supply

const totalSupply = await client.getTotalSupply();
const btcUsdcSupply = await client.getTotalSupplyByCoinType("0x6d9fc...::btc_usdc::BtcUSDC");