PrimeV

# Primev Documentation > Technical documentation for the mev-commit validator coalition, Fast Protocol, FAST RPC, and Fastx402. Validator opt-in is coalition membership: one on-chain signal across many L1 keys. It is not extra block revenue from a live commitment market. Fast Protocol, FAST RPC, and Fastx402 stay product docs under Concepts > Products. ## Products - [FAST RPC](https://docs.primev.xyz/v1.2.x/developers/fast-rpc-api): Drop-in Ethereum JSON-RPC replacement at `https://fastrpc.mev-commit.xyz`. Transactions sent through FAST RPC receive binding preconfirmation commitments from block builders. Supports all standard `eth_` methods plus custom `mevcommit_` methods. - [Fast Protocol](https://docs.primev.xyz/v1.2.x/concepts/fast-protocol): Order flow auction (OFA) on top of mev-commit. Users receive at least 90% of mev their transactions generate. Redistributed as Fast Miles (tokenizable points). - [Fast Swaps](https://docs.primev.xyz/v1.2.x/concepts/fast-swaps): Token swap interface on Ethereum mainnet. Gasless ERC-20 swaps via EIP-712 signed intents through Permit2. Supports 2,400+ tokens. Settlement via FastSettlement V3 contract on L1. - [Fastx402](https://docs.primev.xyz/v1.2.x/developers/fastx402): x402 payment facilitator for AI agents. USDC payments via EIP-3009 `transferWithAuthorization`. Sub-second settlement through FAST RPC. Zero fees. Endpoint: `https://facilitator.primev.xyz`. ## FAST RPC API Endpoint: `https://fastrpc.mev-commit.xyz` Standard Eth […truncated]