Rollup-as-a-Service platform for deploying production-grade OP Stack and Arbitrum Orbit chains in minutes, with built-in explorer, RPC, indexer, and bridge tooling.
- 01app-specific rollups
- 02OP Stack L2/L3 deployment
- 03Arbitrum Orbit chains
- 04managed sequencer ops
- 05Metalayer cross-rollup messaging
| Variable | Scope | Description |
|---|---|---|
| CALDERA_CHAIN_RPC_URL | Client | RPC endpoint for the deployed Caldera rollup (provided in the dashboard). |
| CALDERA_API_KEY | Server | Caldera dashboard API key for programmatic chain config and ops. |
Use Caldera to provision the rollup. Pick a stack (OP Stack or Arbitrum Orbit), DA layer (Ethereum blobs, Celestia, EigenDA, or Avail), and gas token in the Caldera dashboard. After deployment, use the issued RPC URL, chain ID, and Blockscout explorer; integrate the Caldera-provided bridge UI or Metalayer for cross-rollup messaging. Treat the sequencer as managed by Caldera unless you opt into Espresso/decentralized sequencing.
- ⚑DA layer choice is locked at deploy time — switching from Ethereum blobs to Celestia/EigenDA later requires a chain migration.
- ⚑Custom gas tokens (non-ETH) on Orbit chains break many off-the-shelf wallets and indexers; verify wallet support before committing.
- ⚑The default sequencer is centralized and operated by Caldera — for credibly neutral apps, opt into Espresso shared sequencing or run your own.
- ⚑Mainnet rollups have a non-trivial monthly cost (typically several thousand USD) plus DA fees — model unit economics before launch.
- ⚑Withdrawal finality follows the underlying stack (7-day OP Stack challenge window unless using a fast-finality AVS like AltLayer MACH).