SleeperPy

What is SleeperPy?

SleeperPy is a free fantasy football analysis tool designed for Sleeper league managers. It combines expert consensus tier rankings with your league data to help you make better lineup and roster decisions.

How It Works

Enter your Sleeper username and SleeperPy will:

• Fetch your leagues and rosters from the Sleeper API
• Rank your players using Boris Chen's weekly consensus tier rankings
• Identify lineup improvements by comparing your starters to bench players
• Find free agent upgrades available on your league's waiver wire
• Provide dynasty analysis including player values, trade targets, breakout candidates, and draft capital tracking

Data Sources

• Boris Chen Tiers — Weekly expert consensus rankings that group players into tiers based on aggregated expert rankings.
• Sleeper API — Your league, roster, matchup, and transaction data.
• DynastyProcess — Dynasty player valuations for keeper and dynasty league analysis.

Built By

SleeperPy is built and maintained by @wbollock. It's open source and available on GitHub.

If you find a bug or have a feature request, please open an issue on GitHub.

Why SleeperPy?

Most fantasy football tools are either paywalled, riddled with ads, or require creating yet another account. SleeperPy is different:

• Free forever — Core features will always be free
• No signup required — Just enter your Sleeper username
• Privacy-focused — No invasive tracking, no selling your data
• Open source — See exactly how it works