#mev

The Solana MEV (maximal extractable value) layer via Jito, live and keyless. On Solana, Jito runs the dominant block-engine: searchers bundle transactions and attach a tip to land them, validators running the Jito client capture that MEV, and a slice flows to JitoSOL stakers. This API exposes the two numbers that matter to anyone building or trading on Solana. The tip-floor endpoint returns the live MEV tip floor — the landed-tip amount at the 25th, 50th, 75th, 95th and 99th percentile (in SOL and lamports) plus the smoothed (EMA) median: the real-time price of priority that every Solana trading bot reads before sending a bundle. The rewards endpoint returns the daily MEV economy — for each recent day the number of MEV tips, how many distinct tippers paid, and the total SOL tipped to validators and to Jito: a read on how much MEV Solana is generating. The validators endpoint ranks the Jito-running validators by stake, each with its MEV commission, priority-fee commission, Jito-directed stake and current-epoch MEV rewards — the MEV configuration of Solana's validator set. This is the Solana MEV / Jito cut — distinct from the Ethereum MEV-Boost builder-and-relay feed (a different chain and mechanism: Solana uses a tip auction, not a builder market), from the Solana validator-decentralisation feed (stake distribution, not MEV) and from the Solana network-performance feed. Tips and rewards are in SOL (tips also in lamports); stake is in SOL; commissions in percent. Sourced live from Jito's public APIs, keyless.

api.oanor.com/jito-api

Who actually builds Ethereum's blocks and which relays deliver them — live from the public MEV-Boost relay APIs, no key. Since the Merge most Ethereum validators outsource block construction through MEV-Boost: specialised block builders compete to assemble the most valuable block (capturing MEV — arbitrage, liquidations, sandwiches — plus priority fees), relays act as trusted middlemen between builders and validators, and the validator simply signs the highest-paying block. This builder-and-relay market is one of the most important and most centralised pieces of Ethereum's infrastructure — a handful of builders win the large majority of blocks — so tracking who is winning and how much they pay is core to Ethereum decentralisation and MEV analytics. The builders endpoint ranks block builders by how many of the recent blocks they won, with each builder's block share, the total and average value (in ETH) they paid validators, and a name where the builder's public key is known. The relays endpoint shows each MEV-Boost relay's reach across the major relays (Flashbots, Ultrasound, bloXroute, Agnostic, Aestus, Titan). The blocks endpoint lists the most recent blocks delivered through MEV-Boost, each with its builder, the value paid to the proposer, gas used, transaction count and which relays delivered it. This is the block-building / MEV-Boost cut, the supply side of Ethereum block production — distinct from the blob-space fee market, the execution-gas oracle, the ETH supply/burn feed and the on-chain and DeFi feeds. Values are in ETH; everything is live. Built for Ethereum infrastructure, MEV research, staking and analytics tools.

api.oanor.com/mevboost-api