With the brand new technology of an Ethereum infrastructure platform, Ethereum transactions can now be pre-confirmed in a split second.
According to Primev, FAST RPC (Remote Procedure Call) allows transactions to be pre-confirmed and scheduled for inclusion in blocks in lower than 200 ms – enabling every part from Ether (ETH) transfers and interaction with smart contracts to the minting of non-fungible tokens (NFTs) at “blazing speed.”
A pre-confirmation is an early signal from a block creator indicating that a transaction is more likely to be included in the following block, while block inclusion refers back to the addition of a transaction to a block.
RPCs like FAST RPC connect crypto wallets to blockchain nodes, allowing users to send transactions and interact with decentralized applications on-chain.
From a user perspective, 200ms could theoretically compete with high-speed Layer 1 blockchains like Sui, where transactions are typically confirmed inside 200ms.
Primev founder Murat Akdeniz released a live demonstration on Monday
Akdeniz said his team has been working on getting Ethereum to this speed for greater than two years.
Ethereum L1 is painfully slow 😩
Can developers please fix this?!?
For greater than two years, the @primev team has been working to speed up the Ethereum mainnet.
Today: MILLISECOND pre-confirmations… ON L1! 🚀Watch me send ETH at lightning speed on this 18s video pic.twitter.com/Diao4VfHzT
— Murat | lordofcoins.eth (@MuratLite) October 20, 2025
FAST RPC has not been tested at scale
The mostly used RPCs on Ethereum are Infura and Alchemy's solution, which, while slower than Primev's FAST RPC, have a much larger node distribution and have been battle-tested under much higher network loads.
More than 400,000 developers use Infura, developed by Consensys, to hook up with Ethereum, while Alchemy enables greater than $150 billion value of transactions annually from over 100 users worldwide.
Still, Primev's solution could offer much faster transactions for users preferring to remain on the Ethereum mainnet reasonably than move to Ethereum Layer 2 solutions.
FastRPC is comparatively easy to establish
Primev's solution may be easily integrated by connecting to a crypto wallet resembling MetaMask or WalletConnect and replacing Infura and Alchemy's RPC with FAST RPC.
Users must then deposit funds into Primev’s “gas tank” on the wallet address “0x24A…c2ACf” before they’ll freely interact on-chain.
