Bundlr's fee is dynamic and depends on several parameters.

Fee Computation

Fees are computed as follows:

bundlr_fee(X = number of bytes) =
arweave_cost(max(X, 10000)) *
conversion_rate("AR", currency) *
global_multiplier *
  • arweave_cost is cost of storing X number of bytes on Arweave using linear pricing (i.e. ignoring minimum chunk size). e.g. if arweave_cost(256KB) = $2.56 then arweave_cost(1KB) = $0.01
  • conversion_rate is the conversion rate between AR and some other currency (e.g. MATIC). This allows users to pay the same fees in different currencies.
  • global_multiplier is a multiplier applied to all transactions which can be seen as a “profit margin”.
  • oracle_fee is a risk multiplier which accounts for cost of treasury management and asset volatility.

Due to a ~3.5x increase in the base cost to store on Arweave (arweave_cost) brought about by the 2.6 hardfork, we are temporarily subsidizing 75% of all upload costs. We expect the cost to stabilize as new miners enter the network and will discontinue subsidizing when the base cost drops.