Simulate a Flashbots Bundle With eth_callBundle (2026)
How to simulate a Flashbots bundle with eth_callBundle on Ethereum: JSON-RPC payload format, coinbaseDiff profit checks, revert debugging, and Go/TS examples.
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Topic · 5 articles
Flashbots Bundles and MEV Protection
Flashbots bundles explained: sending and simulating them, private RPCs like Flashbots Protect and MEV Blocker, and how to avoid sandwich attacks.
What Is MEV Protection on Ethereum & Should You Use It?
What is MEV protection on Ethereum, how does it stop sandwich attacks, does Uniswap have MEV protection, and when should snipers turn it on?
Read the article →Flashbots Bundles Explained: How to Send eth_sendBundle and Why Yours Isn't Landing
How Flashbots bundles work, how to send one with eth_sendBundle, and a checklist for the 5 reasons a bundle doesn't get included on Ethereum.
Read the article →Flashbots Protect vs MEV Blocker: Which Private RPC Should You Use?
Flashbots Protect and MEV Blocker both hide your swaps from sandwich bots. How their endpoints, refunds, revert protection and privacy settings differ.
Read the article →What Is a Sandwich Attack? How to Avoid Getting Sandwiched
A worked example of a sandwich attack on a Uniswap swap, why your slippage setting is the attacker's budget, and five ways to stop getting sandwiched.
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