GMB (Gemba) is the native utility coin of GembaBlockchain, a public, permissionless, EVM-compatible Proof-of-Stake L1. It is the gas and staking coin and is used to pay for services in the Gemba ecosystem at a 20% discount. Fixed supply of 100,000,000, zero inflation.

What can I use GMB for?

Paying for Gemba ecosystem services (GembaEscrow, GembaWin, GembaTools, and event-creation fees on GembaTicket) at 20% off, paying network gas fees, and staking to run or delegate to a validator. GembaKitchen and GembaSniperBot will accept GMB after mainnet.

Can I sell GMB back or redeem it for money?

No. GMB has no buyback and no fiat redemption. It is a utility coin meant to be used for services, not an investment. Gemba operates no exchange and seeds no liquidity. You can freely transfer or gift it to someone who will use it.

On the public testnet you can claim GMB free from the faucet on gembachain.io. GMB is also sold for stablecoins so clients get cheaper access to services. There is no public speculative sale.

GMB — the utility coin of GembaBlockchain · what it is & what you can do with it

The basics

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.

100,000,000

fixed supply — minted once at genesis

inflation — never minted again

EVM 821206

mainnet chainId (testnet 821207)

Utility

for use, not speculation

Where it works

dApps that accept GMB

Pay with GMB in these Gemba ecosystem apps and get 20% off the standard fee. The services and the discount are part of gembait.com.

GembaEscrow

Secure escrow for deals between parties. Pay the escrow service fee in GMB — 20% off.

Accepts GMB · testnet escrow.gembait.com ↗

GembaWin

Win-win deals & rewards platform. Pay the service fee in GMB and save 20%.

Accepts GMB · testnet win.gembait.com ↗

GembaTicket

Important: the 20% discount applies only to the fee for creating an event — not to buying tickets. Organizers pay the event-creation fee in GMB at 20% off.

Event-creation fee only gembaticket.com ↗

GembaTools

Developer & on-chain tools. Pay for tool access in GMB — 20% off the standard price.

Accepts GMB · testnet GembaTools ↗

GembaKitchen

AI kitchen-operations SaaS. The 20% GMB discount is prepared and will go live with GembaBlockchain mainnet (mainnet GMB is required).

Coming with mainnet

GembaSniperBot

Trading helper bot. The 20% GMB discount is prepared and will go live with GembaBlockchain mainnet (mainnet GMB is required).

Coming with mainnet

GMB is accepted via GembaPay's native-GMB payment flow. Today the chain is on the public testnet, so you pay with testnet GMB; the same flow carries over to mainnet. Accounting is 1 GMB = €1 internally for computing the discounted service fee — this is a fixed utility rate for paying fees, not a market price, an exchange rate, or a promise that GMB can be bought or sold at €1.

Be clear & honest

What GMB can and cannot do

✓ You can

Pay for Gemba ecosystem services 20% cheaper with GMB.
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 a €1 market price — 1 GMB=€1 is only the internal fee-accounting rate.
Use the GembaTicket discount to buy tickets — it is only for event creation.
Treat GMB as an investment — Gemba seeds no liquidity and runs no exchange.

Getting GMB

How to get GMB

Two ways, depending on what you need.

Free on the testnet

Claim GMB (and test stablecoins) from the public faucet on gembachain.io to try the chain, the dApps and the 20% discount — no cost.

Open the faucet ↗

Buy GMB for services

GMB is sold for stablecoins so clients get cheaper access to services — you buy what you need, use it for discounted fees, and it recirculates. There is no public speculative sale and no fiat redemption; this is a utility purchase, not an investment.

Get GMB ↗

Good to know

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.
Don't buy extra GMB "for fees" — top up gas from the faucet and keep your GMB for the actual service.

Buy just enough — or gift it

The 20% discount means a €X service costs 0.8 × X GMB — buy that, not more.
Got GMB you won't use? Transfer or gift it to someone who will spend it on services.

Earn GMB

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 — pay for gembait.com services at 20% off, cover gas, deploy contracts, sign transactions, run tests… on a permissionless chain, only your imagination is the limit.

1,000 – 10,000 GMB

to start a validator — minimum and maximum self-bond

10 – 100 GMB / day

your daily validator reward — from 10 (min) up to 100 (max)

up to +50 GMB / day

the most you can add to your own stake per day

Run a validator → Get GMB →

No promises of profit. GMB is a utility coin, not an investment. Validator rewards depend on your stake, your uptime and network parameters, and exist to secure the chain and to let you keep using Gemba services — not as a financial return.