Build against NABD with a signed, fee-aware transaction flow.

Use the public testnet to validate wallet flows, asset operations, AP calls, fee handling, and finality before production integration.

Request test tokens SDK repository Developer docs

Submit your first transfer.

The SDK signs locally, so private keys never leave your application. Chain identity and fees are read from the network at runtime, so the same code moves from testnet to production without edits.

transfer.ts
import { MIN_TRANSFER_FEE_MICRO, Wallet, connect, microNabd } from "nabd-sdk";

const client = connect("https://api.testnet.nabdchain.org");
const wallet = await Wallet.fromFile("wallet.json");

// Read chain identity and the account nonce from the network.
const chain = await client.getChainBinding();
const nonce = await client.getNextNonce(wallet.address);

const tx = wallet.buildTransfer({
  to: "NABD1RECIPIENT...",
  amount: microNabd("0.001"),
  fee: MIN_TRANSFER_FEE_MICRO,
  nonce,
  chain,
});

const txHash = await client.submitTransaction(tx);
const confirmed = await client.waitForTransaction(txHash);
console.log(confirmed.status, confirmed.block_round);
  1. Fund a wallet

    Generate a wallet with the SDK, then request capped testnet funds from the faucet.

  2. Read chain identity

    Fetch network_id, genesis_hash, and active fees from /api/status. Signed payloads bind to them, so a transaction for one network is invalid on any other.

  3. Build and sign locally

    The SDK canonicalizes the payload and signs it with Ed25519, Falcon-512, or both under the hybrid post-quantum envelope.

  4. Submit and confirm

    Poll /api/v1/transactions/:hash after submission. The transfer is final when status is confirmed, which takes about 1.2 s on the current testnet.

Fees are integers, read from the network.

Fees are denominated in integer micro-NABD. GET /api/status returns the active fees object. Treat it as authoritative instead of hard-coding the minimums below.

Transfer, private transfer, or batch item

1000

Asset operation (create, mint, transfer, or burn)

1000

Autonomous program call

10000

Autonomous program deployment

100000