Kraken has been one of crypto's most trusted exchanges since 2011, but until December 2024, it had no onchain presence of its own. Ink changed that. Ink is a Layer 2 blockchain built by Kraken on Optimism's OP Stack, designed to bring Kraken's 10 million users into DeFi without the friction that has kept most of them out. It launched ahead of schedule, grew from $7 million in TVL to over $450 million within a few months, and now has a native token on the way. This article explains what Ink is, how it works, how it compares to Base, what the INK token does, and how to bridge funds onto the network.
What Is Ink and Why Did Kraken Build It?
Ink is a Layer 2 blockchain built on Optimism's Superchain and released by Kraken. The goal is straightforward: move Kraken's existing user base onchain by eliminating the friction that has historically made DeFi inaccessible to most CEX users. Complex wallet setups, gas fee confusion, fragmented liquidity across chains — Ink was built to reduce all of it.
Kraken describes Ink as a bridge between centralized and decentralized finance, giving users the familiar experience of a regulated exchange alongside the composability of open DeFi protocols. The launch came ahead of the original Q1 2025 schedule, accelerated by strong builder demand during the testnet phase.
The Kraken Ink layer 2 joins a growing set of exchange-backed chains. Coinbase has Base, Binance has BNB Chain, and Robinhood has begun developing its own Arbitrum-based chain. The pattern is clear: major centralized exchanges are building their own onchain infrastructure rather than depending on third-party ecosystems. Kraken received a 25 million OP token grant from the Optimism Foundation — worth roughly $58 million at the time — to support the integration.
How the Ink Blockchain Works
Ink is built on the OP Stack, the same open-source framework that powers Base, Optimism Mainnet, and a growing number of Superchain members. As an optimistic rollup, Ink bundles transactions off-chain and posts compressed proofs to Ethereum for final settlement, inheriting Ethereum's security at a fraction of the cost.
Ink offers one-second block times from day one, with sub-second blocks in active development. Transaction fees sit below one cent on average. The chain is EVM-compatible, meaning any Solidity smart contract that runs on Ethereum or another EVM chain deploys on Ink without modification.
The security model includes permissionless fault proofs with both Gelato and Kraken running challengers — making Ink the first Superchain network to launch with multiple fault proof challengers. This provides an additional layer of accountability beyond what most new L2s offer at launch.
The Superchain Connection
Being part of the Optimism Superchain means Ink shares security, governance standards, and a communication layer with over 29 other OP Stack chains including Base, Soneium, and Worldchain. For users, Superchain interoperability enables liquidity to move between member chains without the cumbersome bridging processes typically required when crossing between isolated L2s. For developers, it means building once and tapping into an expanding network of connected ecosystems.
This is a structural advantage over standalone chains. Isolated L2s compete for their own liquidity pools. Ink, as a Superchain member, can route users into shared liquidity from the moment it goes live, lowering the cold-start problem that kills most new networks.
Ink vs Base: How They Compare
The most direct comparison for the Ink kraken layer 2 is Coinbase's Base — the closest precedent for an exchange-backed Superchain L2. Both are built on the OP Stack, target mainstream users through CEX integrations, and earn revenue through sequencer fees. The differences are strategic.
Base launched with over $2.4 billion in TVL and currently holds the largest market share among all L2 chains. Coinbase generated over $75 million in sequencer revenue through 2025, roughly 60% of all L2 sequencer revenue. Ink is earlier and smaller, but it is running the same playbook with a head start on the DeFi-first positioning.
The key strategic difference: Ink's initial approach was to launch without a native token, focusing entirely on DeFi infrastructure before introducing tokenomics. That changed in mid-2025 when the Ink Foundation introduced the INK token — but the DeFi-first approach means the ecosystem has actual use cases underlying the token narrative, rather than the reverse.
Ink also differentiates in security. Ink is the first Superchain network to feature multiple fault-proof challengers at launch, with both Gelato and Kraken running challenger nodes. Base, while battle-tested, launched with a more centralized security posture that it has been progressively decentralizing.
The Ink Ecosystem: DeFi Protocols Live Today
Ink launched with more than a dozen DeFi applications, anchored by two flagship protocols: Nado, a perpetual DEX, and Tydro, a lending and borrowing market. App revenue grew from $500,000 in October 2025 to $5.77 million in January 2026 — a signal that users are generating genuine trading and lending activity rather than just bridging funds and waiting.
Other notable integrations include Velodrome, deployed on Ink with $1.4 million in allocated liquidity incentives, and Curve and LayerZero for cross-chain messaging. The presence of established DeFi protocols from day one solved one of the most common failure modes for new chains: launching with infrastructure but no applications.
TVL grew from $7 million in October 2025 to nearly $450 million by early 2026, placing Ink among the fastest-growing networks on the Superchain. The growth has been driven by DeFi activity on Nado and Tydro combined with early positioning ahead of the INK token launch.
Ink Blockchain Fees: What It Costs to Transact
Ink blockchain fees are among the lowest in the OP Stack ecosystem. Average gas per transaction typically falls below one cent, and users only need ETH to pay gas — no proprietary gas token required. Unlike Ethereum mainnet where fees spike during congestion, Ink's rollup architecture keeps costs predictable.
For users coming from Kraken's exchange, this matters practically. Swapping a stablecoin, supplying assets to a lending market, or trading a perpetual on Nado each cost fractions of a cent. The cost structure makes micro-transactions and frequent DeFi interactions viable in a way they are not on Ethereum L1.
Ink's sequencer model mirrors what Coinbase demonstrated with Base: Kraken acts as the sole sequencer today, ordering transactions and earning the fee revenue, with plans to decentralize sequencer responsibilities over time. This sequencer revenue creates a durable income stream for Kraken independent of exchange trading volumes — diversifying the company's revenue base in a way that benefits the broader chain ecosystem.
This is also why stablecoins matter so much to the Ink model. Stablecoin volume is the backbone of DeFi: lending, trading, yield, and payments all settle in dollars. For anyone moving stablecoins between chains efficiently, the Superchain's cross-chain liquidity layer — combined with infrastructure like Eco Routes — makes getting onto Ink and routing stablecoins between Superchain members substantially faster than using traditional bridges.
The INK Token: What It Does
Kraken originally planned to launch Ink without a native token, an unusual choice that avoided regulatory complications and focused early momentum on genuine usage. That position shifted in mid-2025. The Ink Foundation announced $INK as a utility token with a fixed supply of 1 billion, steered by an independent nonprofit rather than Kraken directly.
The INK token is designed to unify users, protocols, and builders across the Ink ecosystem rather than to serve a governance function over the L2 itself. The design is utility-focused: INK incentivizes liquidity allocation across DeFi protocols on Ink and guides reward distribution for activities like lending and trading — not protocol governance in the traditional sense.
$INK will be distributed through Kraken Drops, Kraken's existing rewards program, to eligible active Kraken clients and ecosystem participants. The Ink Foundation has signaled that airdrops will target real network users rather than airdrop farmers, with Sybil-resistant filters applied to the distribution. Users who have bridged assets, traded on Nado, supplied liquidity on Tydro, or registered .ink domains are expected to have the strongest eligibility.
The INK Token Airdrop: What to Know
The INK token airdrop has generated significant interest. Kraken has confirmed that $INK will go to eligible, active Kraken clients and ecosystem participants, but full airdrop details are pending. Based on available signals, a TGE is expected sometime in Q2 to Q3 2026.
The most direct path to eligibility is genuine usage: bridge ETH or USDC to Ink, trade on Nado, supply assets on Tydro, register a .ink domain through ZNS, and maintain consistent activity across multiple transaction types. Ink Points — accumulated through onchain activity — are widely expected to convert to token rewards at TGE.
Users who have previously been active on other Superchain networks (Base, Optimism Mainnet, Mode, Zora) may also qualify through cross-chain eligibility criteria, given Ink's integration into the broader Superchain ecosystem.
The Original Angle: What Ink Gets Right That Most L2s Miss
Most coverage of Ink treats it as another L2 in an oversaturated market. That framing misses the structural advantage that Kraken brings: not the technology, but the distribution.
Every other L2 competes for users from a standing start. Arbitrum, zkSync, Linea — each had to build user bases from scratch through DeFi incentives and token launches. Kraken starts with 10 million existing users who already hold accounts, have passed KYC, and transact in crypto regularly. The challenge for Ink is not acquiring users but converting existing Kraken users into DeFi users, which is a fundamentally different and lower-friction problem.
Coinbase proved this model works with Base, effectively turning its exchange user base into DeFi participants at scale. Kraken's user demographic skews toward more experienced traders, particularly in Europe and internationally, which could produce a DeFi power-user base rather than a casual-user base from the start.
This also creates a flywheel that benefits the stablecoin infrastructure layer underneath Ink. As Kraken users move assets onchain and trade across Superchain-connected DeFi, the demand for fast, reliable cross-chain stablecoin routing grows. Eco's Programmable Addresses — which automate what happens the moment stablecoins arrive on a chain — represent exactly the kind of infrastructure that makes Ink's cross-chain UX seamless rather than fragmented. The more users Ink attracts, the more that underlying infrastructure matters. Understanding how the stablecoin economy is maturing helps clarify why exchange-backed chains are positioning so aggressively right now.
FAQ
What is Ink blockchain?
Ink is a Layer 2 blockchain built by Kraken on Optimism's OP Stack. It launched on Ethereum mainnet in December 2024 and is designed to bridge Kraken's centralized exchange user base into DeFi. It features one-second block times, sub-cent transaction fees, and full EVM compatibility, and it connects to the broader Optimism Superchain ecosystem.
Is Ink the same as Kraken's exchange?
No. Ink is a separate onchain blockchain product built by Kraken. Your Kraken exchange account and your Ink wallet are distinct, though Kraken is building integrations that let users transfer assets directly from the exchange to Ink. Kraken acts as Ink's sequencer, ordering transactions and earning revenue from the chain's activity.
What is the INK token?
The INK token is a utility token issued by the independent Ink Foundation with a fixed supply of 1 billion. It is not a governance token for the L2 itself. INK is designed to incentivize liquidity and DeFi participation across the Ink ecosystem. Distribution will happen through Kraken Drops and a separate airdrop to eligible users and ecosystem participants, with a TGE expected in 2026.
How do I bridge to Ink?
To bridge funds to Ink, visit the official bridge at inkonchain.com or use supported third-party bridges. ETH is the gas token on Ink, so you need ETH on the destination chain to pay fees. Kraken exchange users can also withdraw ETH directly to Ink at zero fee through the Kraken Wallet integration.
How does Ink compare to Base?
Both are OP Stack Layer 2s backed by major exchanges, and both earn revenue through sequencer fees. Base is larger and more established, with over $2.4 billion in TVL at Ink's launch. Ink differentiates through its DeFi-first app suite and its security model — it launched as the first Superchain network with multiple fault-proof challengers. Both are part of the Optimism Superchain and share interoperability standards.