Pay with Gamma

Gamma lets you use Alpha from a Gamma-enabled subnet to pay for engy credits. First mint Gamma into a deposit you control, then sign a spend with your browser wallet. Engy credits your account after the spend is finalized on Bittensor.

One Gamma adds $1 of engy credit, plus a 5% bonus. A Gamma spend burns the Gamma; it does not transfer a token to engy. Bittensor's Gamma guide explains minting, deposits, spenders, and daily spend caps.

Prepare a depositCopy Anchor Link

Use btcli to mint Gamma from TAO or from Alpha already staked on the subnet. Use a dedicated deposit hotkey, not a staking hotkey or coldkey. The deposit's spender must be your own coldkey, available in a PolkadotJS-compatible browser wallet. If you already have a deposit, set its spender to your coldkey with btcli gamma set-spender --netuid NETUID --hotkey HOTKEY --spender YOUR_COLDKEY.

The subnet must support Gamma minting, and the deposit must have enough balance and daily spend allowance for the amount you want to pay. Gamma from one subnet remains on that subnet; choose that subnet's ID when starting the top-up.

Complete the top-upCopy Anchor Link

1. In Credits, enter a whole-dollar amount and select Gamma. Connect your wallet and choose an account. Engy loads its deposits across subnets, showing each balance and available spend allowance. A single usable deposit is selected automatically; otherwise, choose one.
2. Continue with the selected deposit. Check the amount and fee in your wallet, then sign the spendGamma transaction. Your seed, mnemonic, keyfile, and password stay in your wallet.
3. The dialog shows processing while engy broadcasts the signed transaction and checks its finality. You can close it and return later; a successful finalized spend appears in your balance and transaction history.

A rejected or skipped spend adds no credits. If your deposit's spender, balance, or daily spend cap changes before the transaction lands, start a new top-up after fixing it.