What is GMB?
GMB (Gemba) is the native coin of GembaBlockchain — a public, permissionless, fully EVM-compatible Proof-of-Stake L1 (Cosmos EVM + CometBFT). It is the gas coin, the staking coin and the utility coin of the whole ecosystem. It is not an ERC-20 token.
What GMB can and cannot do
✓ You can
- Pay network gas fees on GembaBlockchain in GMB.
- Stake GMB to run a validator or delegate to one, and earn rewards.
- Freely transfer GMB, or gift it to someone who will use it for services.
- Get GMB free on the testnet from the faucet to try the chain and its dApps.
✕ You cannot
- Sell GMB back to us — there is no buyback.
- Redeem GMB for fiat — no cash-out, ever.
- Assume any market price.
- Treat GMB as an investment — Gemba seeds no liquidity and runs no exchange.
How to get GMB
On the testnet, from the public faucet.
Free on the testnet
Anyone can claim a small amount of testnet GMB from the public faucet — enough to sign transactions and try the dApps.
Open the faucet ↗Smart tips for using GMB
Get exactly what you need — and let the faucet cover your gas.
Gas is on the house (testnet)
- Gas on GembaBlockchain is tiny (a few gwei). The faucet hands out 0.1 GMB / 24h — plenty to sign many transactions.
- Top up gas from the faucet and keep your GMB for the actual service.
Keep only what you need — or gift it
- Got GMB you won't use? Transfer or gift it to someone who will spend it on services.
Become a validator
GembaBlockchain is a permissionless Proof-of-Stake chain: bond GMB, run a node, and you join the active validator set — no approval, no KYC, just stake. Active validators earn protocol rewards paid from a pre-minted 20M reward reserve (zero inflation). Use those rewards however you like on GembaBlockchain — for example to pay for services from gembait.com.