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FAST RPC is a drop-in replacement for standard Ethereum RPC endpoints that enables preconfirmations. It works like a normal Ethereum node — you send transactions via eth_sendRawTransaction and check receipts via eth_getTransactionReceipt — but under the hood it coordinates with mev-commit’s decentralized network of block builders to preconfirm your transactions.

How It Works

  1. You configure your wallet or dapp to point at https://fastrpc.mev-commit.xyz instead of a standard RPC like Infura or Alchemy.
  2. When you send a transaction, the RPC encrypts it and sends bids to block builders in the mev-commit network.
  3. Once all registered builders issue a commitment and the next block proposer is opted in, the transaction is preconfirmed.
  4. eth_getTransactionReceipt returns a receipt immediately — no waiting 12+ seconds for the next block.

Who Is It For?

  • Wallets — Add the RPC as a custom network and get instant transaction confirmation UX. No deposit needed during the promotional period — gas is fully sponsored.
  • dApps — Integrate preconfirmations with minimal code changes. Deposit ETH into a gas tank, then use standard RPC methods as usual.
  • Developers — Access additional methods like mevcommit_getTransactionCommitments and mevcommit_optedInBlock for advanced preconfirmation logic.

Key Benefits

  • Sub-second confirmation UX — Transactions are preconfirmed in ~100-200ms, compared to 12+ seconds on standard Ethereum.
  • Drop-in compatibility — Works with existing wallets and tools. No protocol changes or special SDKs required.
  • Gasless for wallets — During the promotional period, the RPC sponsors transaction fees for wallet users.
  • mev redistribution — Value captured through preconfirmations flows back to users and validators, not extractors.

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