Tool Open source
FLYON is a read-only EVM wallet tracker and command-line tool that extracts swap logs from a chain, reconstructs closed trades using first-in-first-out accounting, and ranks realised profit in each pool’s quote asset rather than in dollars. It sets aside proceeds from tokens whose purchases the chain cannot show, leaving those amounts off the leaderboard.
When a watched wallet buys, FLYON records a call with its confidence before the outcome is known. Calls are stored in an append-only, hash-chained JSONL ledger and later settled using the first trade in the same pool at or after the configured window; calls without a qualifying trade remain open. It scores settled calls with the Brier score and builds a static site containing the trades, board, feed, calls, settlements, and scores.
The tool uses six read-only JSON-RPC methods and has no API account, signing, wallet, or transaction-submission capability. It supports demo markets and replayable recorded indexer runs, requires Python 3.10 or later, has zero dependencies, and is released under the MIT license.
1 use taken from transcripts — each links to the moment in the video.
Tracks wallets and records prediction calls on a hashchain ledger, later settling them against market prices so users can measure actual hit rates.
1 in the library.