Prerequisites

Before using the Helix app, you need the following:

Testnet Notice

This documentation covers the testnet deployment of Helix on OPNet testnet. Real funds are not involved. All tokens used here are testnet tokens with no monetary value.

1. OPWallet Browser Extension

OPWallet is the official Bitcoin wallet extension for OPNet. It manages your Bitcoin keys, signs transactions, and interacts with OPNet smart contracts directly from your browser.

• Install OPWallet from the browser extension store for your browser
• Create a new wallet or import an existing one using your seed phrase
• OPWallet handles both your Bitcoin (for gas) and your OP-20 tokens

OPWallet is required — no other wallet is compatible with OPNet smart contract interactions.

2. Testnet BTC (for gas)

All OPNet transactions require a small amount of Bitcoin to pay for transaction fees (gas). On testnet, you need testnet BTC.

To get testnet BTC:

• Use an OPNet testnet faucet to claim free testnet BTC
• Testnet BTC has no real value and is only valid on the testnet network
• A small amount (0.001–0.01 tBTC) is enough for dozens of interactions

3. OP-20 Test Tokens

To wrap tokens in Helix, you need the underlying OP-20 tokens. On testnet, two tokens are available:

MOTO — The native token of MotoSwap, available on testnet.

• You can mint testnet MOTO by calling the mine() function on the MOTO contract
• The Helix app provides a direct link to the MOTO contract on OPScan

PILL — A secondary testnet token also available via mine().

Both tokens are freely mintable on testnet for testing purposes. Use the OPScan interface or the Helix app's provided links to mint them before wrapping.

Summary

Requirement	Purpose
OPWallet extension	Sign transactions, manage keys
Testnet BTC	Pay gas fees on OPNet testnet
Testnet OP-20 tokens (MOTO/PILL)	Deposit into Genomes to receive gTokens