Appchains without fragmentation
Own your appchain without breaking composability with Ethereum
Based Appchain Platform
Own your appchain without breaking composability with Ethereum
Why based appchains?
Synchronous composability
Based appchains are synchronously composable with Ethereum L2s. This means contracts can call each other across chains, assets can move without bridging, and your appchain gets access to L2 liquidity, user base, oracles, and tokens — creating a unified experience that feels like a single chain.
Minimum infrastructure
Forget running a sequencer or managing expensive oracle integrations. Based appchains inherit these from the underlying chain — so you can focus on building.
Sovereignty
Own your chain, own your brand —ownership and control over governance, upgrades, permissions, and the entire UX.
Customize as you want
Configure your chain your way: native gas sponsorship, custom DA layers, permission rules (like whitelisting), and full control over branding and UX.
Hyperscale without limit
Enjoy extremely low gas fees and real-time transactions, making previously impossible use cases — like micropayments or high-frequency applications — finally viable
Why based appchains?
Customizability
Hyper Scaling
Sovereignty
Composability
Minimal Infra
L2 contract
Appchain
Based Appchain
L2 contract
Appchain
Based Appchain
Customizability
Hyper Scaling
Sovereignty
Composability
Minimum infra
No more bridges, no more fragmentation. Synchronously composable
Traditional Appchains
Fragmented, slow, bridge-heavy
Based Appchains
Synchronous, seamless, unified
Use cases
Social protocol
The team wants to bring Farcaster user scores onchain, but updating them on Base is prohibitively expensive. Especially when only a subset of the data will be used.
By using based appchain, the team can update their onchain scores in real time without fear. This will enable developers on Base to get live data inside their smart contracts, the data retrieval behaves like a normal call.
Onchain orderbook DEX
Onchain orderbook exchange requires a high throughput and fast block time, and they choose an appchain approach.
On top of that, with based appchain, the team can synchronously reads oracle data from L2, significantly reducing the cost of bootstrapping their appchain.
Also, they can leverage other defi primitives such as lending protocols.
Gaming ecosystem
Users can play games on gaming chains, directly using their funds on the underlying chain —without the need for bridging — while still enjoying all the benefits of appchains, such as customization.
This means that their appchain gains immediate access to distribution of base layer (i.e. liquidity and user base).
