• Go API client for the mev-blocks API for information about Flashbots blocks and transactions
• Detect bundle errors: (a) out of order, (b) lower gas fee than lowest non-fb tx
• Detect failed Flashbots and other 0-gas transactions (can run over history or in 'watch' mode, webserver that serves recent detections)
• Various related utilities

Uses:

• https://github.com/ethereum/go-ethereum
• https://github.com/metachris/go-ethutils

Related:

• https://github.com/metachris/flashbots-rpc (callBundle, etc)

Good starting points:

• cmd/api-test/main.go
• cmd/block-watch/main.go

Reach out: twitter.com/metachris

https://blocks.flashbots.net/

Installation:

go get github.com/metachris/flashbots/api

Usage:

// Blocks API: default block, err := api.GetBlocks(nil) // Blocks API: options opts := api.GetBlocksOptions{BlockNumber: 12527162} block, err := api.GetBlocks(&opts) // Transactions API: default txs, err := GetTransactions(nil)