mev-history-mcp

x402 MCP for EVM MEV history. Sandwich detection + per-wallet MEV exposure + per-pool MEV density. Block-position heuristic over public RPC. Multichain (ethereum/base/arbitrum/optimism/polygon). No signup, no API key — pay USDC on Base.

Skills

• mev_exposure
  Per-wallet MEV exposure score for an EVM address. Samples recent blocks, identifies the wallet's swap-related tx via known DEX router targets, and applies a block-position sandwich heuristic to each. Returns 0–100 exposure score, sandwich count, swap count, and per-sandwich attacker/frontrun/backrun details.
• sandwich_check
  Single-tx sandwich classifier. Takes a tx_hash + chain, fetches the tx + its block, and applies the block-position heuristic. Returns is_sandwiched + confidence (none/weak/medium/strong/confirmed) + attacker_addr + frontrun/backrun details.
• recent_mev_density
  Pool-level recent MEV density. Takes a pool address + chain, fetches every log emitted by the pool in the lookback window, and runs the sandwich heuristic per tx. Returns sandwich_density (0.0–1.0), density_band, and sample sandwiches.

How to call

https://mev-history-mcp.mtree.workers.dev