alkanesjs

A TypeScript SDK for the alkanes metaprotocol on Bitcoin: deploy contracts, call them through typed ABI documents, build protostone transactions (including dependent CPFP packages), and read back what they did. Small bundle, strict types, no oyl/sdk dependency — execute, simulate and trace are implemented here.

npm i alkanesjs

A whole flow, start to finish — a fresh wallet, funded from the regtest faucet, minting DIESEL. Copy it and run it:

import { Account, AlkaneId, Contract, networks } from "alkanesjs";
import { TokenAbi } from "alkanesjs/abis";

const DIESEL = AlkaneId.fromString("2:0");

const me = Account.generate(networks.Regtest);
const diesel = new Contract(TokenAbi, DIESEL, networks.Regtest);

const start = async () => {
  // a brand new wallet has nothing, so ask the regtest faucet for coins
  console.log("Requesting rBTC from faucet to initiate a mint...");
  const faucet = await me.tx().requestFaucet({ amount: 0.1 }).waitForConfirmation();
  console.log(`Faucet TX confirmed: https://regtest.espo.sh/tx/${faucet.txid}`);

  // a view — simulated, nothing broadcast
  const name = await diesel.getName().unwrap();

  // a state change — built, signed, broadcast
  console.log(`Minting ${name}..`);
  const sent = await me.tx().call(diesel, "mintTokens").build().send();
  console.log(`Waiting for TX: https://regtest.espo.sh/tx/${sent.txid}`);

  // confirmed is not succeeded — the traces say what the protostones did
  const done = await sent.waitForConfirmation();
  console.log(done.ok ? done.traces : `reverted: ${done.error}`);
};

start();

Everything in it is real: Account.generate makes a BIP39 wallet, requestFaucet is regtest-only, TokenAbi ships with the package, and done.traces is what the mint's protostone actually did.

Entries

The root entry is the 90% path — Provider, Account, Contract, AlkaneId, Amount, bitcoin. Everything else lives in an entry named after its purpose:

| Import from | For | | --- | --- | | alkanesjs | connecting, signing, calling, deploying | | alkanesjs/boxed | result handling: consumeOrThrow, isBoxedError, … | | alkanesjs/traces | decoding what protostones did | | alkanesjs/abi | alkabi documents: overrides, local wasm views | | alkanesjs/abis | shipped ABI documents: Oyl AMM, frBTC, plain tokens | | alkanesjs/utils/amm | constant-product pool math | | alkanesjs/utils/frbtc | frBTC premium math + live signer lookup | | alkanesjs/wallets | browser wallet connectors (SSR-safe) |

alkanesjs binds no contracts — no hardcoded ids, no opcode tables in code. ABI documents for widely-deployed contracts ship as data under alkanesjs/abis; for your own contracts you bring the document the build emitted, and the SDK brings the machinery either way.

Documentation

docs/README.md is the index. Highlights:

• core.md — Provider, accounts, contracts, deployment, ids, amounts
• transactions.md — the builder: transfers, calls, shadow space, chained transactions, CPFP packages
• conventions.md — the wire facts everything assumes

Building

npm i
npm run build

Build artifacts land in dist/ — one CJS + ESM + flattened .d.ts triple per entry. Adding an entry is documented at the bottom of docs/README.md.