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I'm trying to send 3 transections with MEV Marlin using web3-flashbots. But if i'm trying to use example.py code from here(https://github.com/flashbots/web3-flashbots), i have a error with web3.flashbot.simulate().

    while True:
    block = w3.eth.block_number
    print(f"Simulating on block {block}")
    # simulate bundle on current block

    w3.flashbots.simulate(bundle, block)

Did someone can help me with it?

Error:

ValueError: {'code': -32601, 'message': 'Method not found'}

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4
  • Are you using the relay at bor.txrelay.marlin.org ?
    – minhhn2910
    Commented Dec 29, 2022 at 2:41
  • @minhhn2910 yep. I'm find simulate method in web3-flashbots, but it handle to call_bundle() and don't have it in flashbots.py. So, i trying to find solution..
    – 404
    Commented Dec 29, 2022 at 12:13
  • In their website they said that "The relay only supports the eth_sendBundle RPC call at the moment. This means methods like eth_callBundle and related calls like simulate in the flashbots provider are not supported. Searchers will need their own instance or bor/mev-bor if they require the use of these methods." Did you consider this and run your own mev-bor node ? Link: docs.marlin.org/docs/User%20Guides/Polygon%20MEV/…
    – minhhn2910
    Commented Dec 29, 2022 at 12:53
  • @minhhn2910 my bad, i miss it. But if i trying to send tx without simulating, a have error "ValueError: {'code': -32000, 'message': 'Please simulate on top of the latest block!'}" UPD. i mean w3.flashbots.send_bundle(
    – 404
    Commented Dec 29, 2022 at 12:58

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