Skip to main content DA Builder applies a usage-based pricing model that guarantees efficiency and cost savings whenever aggregation is possible.
Pricing Model DA Builder uses a pay-per-use model with three cost components:
Execution Gas Charged based on your transaction’s gas usage. Intrinsic gas costs are shared with network participants, reducing per-transaction expense.
Each transaction pays for its own gas consumption
Minimum transaction overhead (21k gas) is shared across aggregated transactions
Large transactions pay more, small transactions pay less
Fair cost distribution based on actual resource usage
Blob Gas Charged per blob transaction based on blob usage. Each blob transaction pays for its own blob gas costs.
Currently, DA Builder supports a single blob transaction per batch, but configurable options for blob transaction processing and batching with other transaction types are coming soon.
Service Fee Small fee for aggregation services. The majority of savings are passed back to you, with a portion retained by Spire Labs.
Important: No Service Fee is charged if no savings are achieved. If your transaction cannot be aggregated, it is submitted directly at cost with no Service Fee.Cost Guarantees DA Builder ensures savings whenever aggregation is possible:
Never increases costs : If aggregation isn’t possible, transactions are submitted at cost with no service feeAutomatic savings : Costs are reduced automatically when transactions can be aggregatedTransparent pricing : All costs are clearly calculated and deducted from your GasTank balance
How Costs Are Charged Costs are automatically deducted from your account balance when transactions are included onchain:
Transaction is submitted and aggregated
Transaction is included in an onchain block
Gas usage is calculated for your transaction
Costs are deducted from your GasTank balance
Outstanding charges are tracked until settlement completes
Monitoring Costs Track your costs using:
dab_accountInfo - Check balance and outstanding chargesGasTank contract - View deposit history and balance
Transaction receipts - See actual gas usage for included transactions
See Monitor Account for details on tracking costs.
Cost Savings Example The minimum transaction overhead (21,000 gas) is shared across all aggregated transactions:
Without aggregation : Full 21k gas minimum per transactionWith 2 participants aggregating : ~10.5k gas per transaction (50% savings)With 10 participants aggregating : ~2.1k gas per transaction (90% savings)
These savings increase as more participants join aggregation pools.
Next Steps 
