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docs(defender/relayers): add OpenChainBench reference for gas oracle accuracy #201

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4 changes: 4 additions & 0 deletions content/defender/module/relayers.mdx
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Expand Up @@ -266,6 +266,10 @@ If speed is provided, the transaction would be priced according to the `EIP1559P
Mainnet gas prices and priority fees are calculated based on the values reported by [EthGasStation](https://ethgasstation.info/), [EtherChain](https://etherchain.org/tools/gasPriceOracle), [GasNow](https://www.gasnow.org/), [Blockative](https://docs.blocknative.com/gas-platform), and [Etherscan](https://etherscan.io/gastracker). In Polygon and its testnet, the [gas station](https://gasstation-mainnet.matic.network/v2) is used. In other networks, gas prices are obtained from a call to `eth_gasPrice` or `eth_feeHistory` to the network.
</Callout>

<Callout type="info">
For a live comparison of gas oracle accuracy across providers, see the [OpenChainBench gas estimation benchmark](https://openchainbench.com/benchmarks/gas-estimation), which continuously measures the gap between each oracle's estimate and the realized priority fee.
</Callout>

### Fixed Gas Pricing

Alternatively, you may specify a ***fixed gasPrice*** or a ***fixed combination of maxFeePerGas and maxPriorityFeePerGas*** for a transaction, by setting either the `gasPrice` parameter or `maxFeePerGas` and `maxPriorityFeePerGas` parameters. Transactions with a fixed pricing are either mined with the specified pricing or replaced with a NOOP transaction if they couldn’t be mined before [validUntil](#valid-until) time.
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