Monitor and optimize gas fees in real time on major networks

Access the battle-tested, scalable Gas API used by MetaMask to power the Gas Fee Estimation feature for millions of users.

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Fuel your development with the multi-chain Gas API

The definitive Gas API for developers to analyze and optimize gas costs on EIP-1559 compatible chains.

Reliable and easy to use

Estimate and optimize gas costs

Build in advanced gas functionality with same API that fuels MetaMask’s Gas Estimation feature.

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Metamask developer center

Watch the tutorial

It’s easy to access the Gas API through Infura and start building. Explore the MetaMask Developer Center tutorial to learn more.

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The Gas API is proven to work reliably, at high scale for MetaMask

Here’s how it might improve your development configuration.

MetaMask has taken time to create a first-class EIP-1559 gas estimation that we expect to allow our users to have a great experience under any network conditions. EIP-1559 provides a way for users to avoid overpaying under normal conditions, and MetaMask's advanced mempool monitoring will help our users get transactions mined the fastest under volatile conditions, too.


Dan Finlay, Co-Founder & Lead Developer on MetaMask

Flex your skills with the Gas API that powers millions of users on MetaMask

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