What is OKB (OKB)?

OKB began as a standard exchange token — hold it, pay lower fees on OKX, receive periodic burns funded by exchange revenue. The same model as BNB, BGB, KCS and GT, with the same fundamental property: its value is a claim on one company.

Two things changed that. OKX made OKB the gas token of X Layer, its Ethereum Layer 2, so every transaction on that chain is paid in OKB by people who may have no relationship with the exchange at all. And in August 2025 it stopped the supply permanently.

The 21 million cap

OKX burned 279 million OKB and capped total supply at 21 million. An upgraded smart contract went live on 18 August 2025, after which no new OKB can ever be created — not by governance, not by the exchange, not at all.

The number is not a coincidence. Twenty-one million is Bitcoin's cap, and adopting it is a deliberate claim that OKB should be read as a scarce asset rather than as a loyalty point. What distinguishes this from every other exchange token burn is the finality: BNB burns toward 100 million and continues quarterly, Gate burns each quarter, Bitget burns periodically. Those are ongoing corporate decisions. OKX's is done and cannot be undone.

The published valuations of that burn vary widely between sources depending on the price used, so the token count is the reliable figure: 279 million destroyed, 21 million remaining, permanently.

X Layer

X Layer is OKX's Ethereum Layer 2, and OKB pays its gas. That is a materially different kind of demand from fee discounts: it comes from chain usage rather than from exchange loyalty, and it does not require the holder to be an OKX customer.

How much it amounts to depends entirely on whether X Layer attracts activity, which is the same question every exchange-backed chain faces. The structure is better than a pure exchange token's; the volume is the open part.

• Gas on X Layer, the demand source that does not depend on the exchange.
• Trading fee discounts and tier benefits on OKX.
• Participation in OKX launch and earn programmes.
• A fixed-supply asset in its own right, which the 21 million cap is intended to make it.

OKB is the strongest structure among exchange tokens, and it is still an exchange token. OKX's trading volume drives most of the demand, and X Layer is OKX's chain. The fixed cap removes dilution as a risk; it does not remove the dependency.

21 million OKB, hard capped, with no mechanism to create more after the August 2025 contract upgrade. Total supply was 279 million higher before the burn.

This is the cleanest supply story of any exchange token by a distance. There is no burn schedule to model, no quarterly announcement to wait for and no corporate decision that could change the issuance — because there is no issuance. Whatever happens to OKX, the number of OKB is fixed.

What a cap does and does not do

It removes dilution. It does not create demand, and OKB's demand still comes overwhelmingly from OKX's exchange business plus whatever X Layer generates. A fixed supply of a claim nobody wants is still worth nothing — scarcity is a multiplier on demand, not a substitute for it.

The useful comparison is BNB, which continues burning toward 100 million and whose burn size scales with Binance's activity. BNB's supply keeps falling with success; OKB's stopped falling entirely. Which is better depends on whether you value certainty or a continuing tailwind.

OKB is not staked to secure X Layer — Layer 2s of this type do not use a staked validator set in the way an L1 does, and OKB's role there is gas rather than bonded security.

OKX's earn products paying an OKB yield are deposits with OKX, where the return is the company's promise rather than a protocol's. The distinction matters most in the scenario where you would want it to hold, as September 2026's events at a competing exchange illustrated.

Single-company dependency remains

The cap fixed the supply and changed nothing about where demand comes from. Fee discounts are OKX's, X Layer is OKX's, and the exchange operates across many jurisdictions with varying rules. A material restriction in a large market reduces trading volume and chain activity at once.

Exchange security is now a visible risk class

Bitget lost $351.6m to attackers in September 2026, the largest crypto theft of the year. Exchange tokens are the most direct expression of exchange risk available, because they have no protocol underneath to survive the company. This applies to OKB as it applies to every token in this category.

X Layer has to attract activity

Gas demand is the part of OKB's case that does not depend on the exchange, and it is only worth something in proportion to how busy the chain is. X Layer competes with Arbitrum, Base and the rest of the Layer 2 market from a standing start and with exchange backing rather than an independent developer community.

No more burn tailwind

The flip side of finality: OKB will never have another supply reduction to announce. BNB, Gate and others still get periodic burns that give the market something to react to. OKB's story on supply is now complete.

Concentration

A 21 million supply is small, and exchange tokens typically have large holdings with the issuer and its affiliates. Thin float cuts both ways in price terms.