HashDude Robinhood Chain
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Robinhood Chain · Flashbots-compatible bundle relay

Flashbots & BlockRazor-style
bundle relay on Robinhood Chain

HashDude is the open private relay for Robinhood Chain (chain ID 4663). Send eth_sendBundle like Flashbots, or use our REST API — MEV-protected, same-block atomic bundles, no signup.

View documentation How it works
  • Flashbots API eth_sendBundle on /relay
  • BlockRazor-style Same-block private bundles
  • Robinhood Chain Chain ID 4663 · open relay

Flashbots & BlockRazor services on Robinhood Chain

HashDude brings private bundle infrastructure to Robinhood Chain — the same class of tools searchers use on Ethereum with Flashbots and on other networks with builders like BlockRazor.

Flashbots-compatible relay

Drop-in replacement for relay.flashbots.net on Robinhood Chain. Methods: eth_sendBundle, eth_callBundle, eth_cancelBundle, mev_sendBundle, mev_simBundle.

Relay URL & examples →

BlockRazor-style block builder

Private path to the Robinhood sequencer. Bundles land in one block with block-synced parallel burst — separate transactions, atomic inclusion, MEV protection enabled.

REST bundle API →

Robinhood Chain native

Built for Robinhood Chain mainnet (chain ID 4663). Public relay at hashdude.xyz — no API key, minimum builder tip applies.

Copy endpoints →

What does HashDude do?

When you swap tokens or send multiple transactions, normal apps broadcast them publicly. Bad actors can see that and attack you.

Normal way

Your trade is visible to everyone first. Bots can jump ahead of you.

HashDude way

Your trade goes through our private relay. It lands hidden and all at once.

Safe

Nobody can sneak in front of you

We call this “MEV protection.” Here’s what that means in normal words:

Private path

Your signed transaction never sits in the public waiting line. Others can’t peek at it.

Your keys stay yours

We never ask for your password or private key. You sign on your own device. We only deliver.

All or nothing

If one part of your bundle fails, the whole thing fails. No half-done swaps.

Fast

Everything lands in one block

Multiple transactions? They all go in together — not spread across different blocks.

  1. 1
    We wait for the right moment

    HashDude syncs to the next block on Robinhood Chain.

  2. 2
    We send everything at once

    All your transactions fire together in one burst.

  3. 3
    We double-check

    Every transaction must be in the same block — or we reject the bundle.

Ready to build?

Copy our relay URL, plug it into your bot or app, and start sending protected bundles. No signup. No API key.

View documentation