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Tendency · Fantasy AI Agent
Lite is planned for Monday, Oct 19. An AI fantasy assistant that knows your league. Lite gives advice inside Claude, with separate editions for football and basketball. Pro lines up exact move steps you carry out in ESPN.
Lite for football: $19. Basketball Lite: $19, a separate purchase. Both are planned for Monday, Oct 19.
Pro: a free beta, planned for Monday, Oct 19 (21+, Claude Pro or higher, ESPN league, Beta Tester Agreement signed with your full name; 25 spots, 90 days each). Applications open then; the launch email tells you when. Paid Pro is planned for Monday, Nov 2: $29 for the first 100 buyers.
Lite: ESPN today (paste or CSV; screenshots in beta). Pro: ESPN only today. Not affiliated with ESPN, any other fantasy platform, the NFL, the NBA or Anthropic.
Not generic rankings. Give it your roster, your scoring and your matchup and get start/sit calls with an estimated win % when the data supports it, bye-week flags and the weeks where your team is thinnest. Every call shows its inputs, and you can ask for the calculation receipts. With Pro, the agent reads your ESPN league directly. With Lite, you paste or upload it.
Waiver targets are ranked by targets and carries per game and the last few weeks of trend, not last week's box score. Trade grades look at both sides of the deal. Manager scouting reads your league's own transaction history to show how each league mate trades, bids and responds. Lite works from the lists you give it. Pro reads them from your league.
For a lineup change, waiver claim, trade offer or response, IR move or league chat message, Pro shows exactly what will change, links the right ESPN page and lists the steps. You make the move on ESPN. Pro then re-reads your league and records whether it took. Pro doesn't make moves for you, there is no autopilot and nothing is scheduled. A log keeps every handoff and its result. Handoffs and result checks are offline-tested only; live verification is pending. Lite never touches your team.
Beta Lite: ESPN paste, CSV upload and start/sit on a pasted roster are tested live. The estimated win %, usage-based waivers, trade grades, bye-week planning and manager history are tested offline only. Screenshot upload hasn't been tested yet. Pro is tested offline only so far.
| Feature | Lite | Pro |
|---|---|---|
| What it is | A Claude Skill (a ZIP file) you upload in Customize > Skills | The full agent: a plugin for your own Claude, working with Chrome |
| Setup | Turn on code execution, upload the Skill, switch it on, start a chat. No terminal. No Python install. | A short list of copy-and-paste steps in the Claude desktop app |
| What it does | Advice from what you paste or upload: start/sit for your lineup. In beta: an estimated win % when the data supports it, usage-based waivers, trade grades for both sides, bye-week planning, and manager history from a pasted transaction list. It tells you what's missing. | Weekly plan, usage-ranked waivers, trade grades, manager scouting, plus exact move steps for lineup, waiver, trade and chat moves, and a result check after you make them |
| Makes moves in ESPN? | No. It never clicks, types or changes anything. You make every move yourself. | No. Pro lines up the exact move and the steps. You make it on ESPN, then Pro re-reads your league to check it. |
| Touches your ESPN login? | No. It never asks for a password, cookie or token. You paste or upload your league info instead. | Works in your own signed-in Chrome tab. You log in; the agent never sees your password |
| You need | A Claude account with Skills and code execution available | Claude Pro, Chrome, the Claude desktop app + Python 3.9+ |
| Platforms | ESPN today (paste or CSV; screenshots in beta). | ESPN only today. |
| Price | $19 | Free beta first (21+, Claude Pro or higher, ESPN league, Beta Tester Agreement signed with your full name; 25 spots). Paid Pro is planned for Monday, Nov 2: $29 for the first 100 buyers. Free beta details |
Start with Lite to see how it thinks. Paid Pro, which reads your league and lines up each move, is planned for Monday, Nov 2.
The same Lite setup, for fantasy basketball: a Claude Skill you upload, then paste or upload your league info and ask. Advice only. You make every pick and move yourself. It's a separate purchase from Lite for football.
Ask who to take at your pick. You get options with reasons and your next pick number in a snake draft. It asks for your projections or rankings. Without them, it uses general rankings and labels every pick that way.
Paste your roster and the week's schedule. It suggests your lineups and flags the nights you'd bench players who have games. This part is in beta.
$19 · A separate purchase. One payment. No auto-renew. 14-day refund. Updates and support planned through the 2026-27 NBA regular season (end date set at launch).
Planned for Monday, Oct 19.
Get the launch emailIt doesn't read your league automatically, doesn't know injury news unless you show it, and gives no betting advice. Needs a Claude account with Skills and code execution turned on. No terminal and no Python install. Not affiliated with the NBA.
Download the Lite ZIP and keep it zipped. In claude.ai, open Settings > Capabilities and turn on Code execution and file creation. Then open Customize > Skills, choose + > Create skill > Upload a skill, pick the ZIP, and switch it on.
Open a new Claude chat and say: "Use Tendency Fantasy Lite. Help me set up my league." Read the first-run notice. Never share a password, cookie or session token.
Paste your copied ESPN roster and matchup pages, or upload a roster CSV (screenshots are in beta). Include the season and week, your team, your scoring and your starting slots. Then ask. You make any change yourself on your league site.
Menu names can change. Skills you upload are not reviewed by Anthropic, so you can open the ZIP and read what's inside before you turn it on.
Pro lines up the exact move. You make it on the site.
Open the Claude desktop app, go to the Code tab, and install the Tendency plugin from the private link you get after you buy. Add the Claude in Chrome extension.
Log in to ESPN yourself, in Chrome. Run the setup command, pick your league and your team, and read the plain-English risk notice. Your password and cookies are never handed to the agent.
Ask for your weekly plan. When you want a move, Pro shows the exact change and the steps. You make it on ESPN, tell Pro you're done, and it re-reads your league to check the result.
Illustrative inputs and made-up teams, not real results. Estimates can be wrong.
Fictional preview of a move handoff. You make the move on the site. Handoffs and result checks are offline-tested only; live verification is pending.
Claude is a separate subscription that you pay Anthropic. Our price is one payment to Tendency.
Not sure you have these? Email support@tendencysports.com before you buy.
Lite is planned for Monday, Oct 19. Get the launch email and we'll email you when it opens.
Get the launch emailLite for football: $19. Basketball Lite: $19, a separate purchase. Both are planned for Monday, Oct 19.
Pro: a free beta, planned for Monday, Oct 19 (21+, Claude Pro or higher, ESPN league, Beta Tester Agreement signed with your full name; 25 spots, 90 days each). Applications open then; the launch email tells you when. Paid Pro is planned for Monday, Nov 2: $29 for the first 100 buyers.
Lite is a Claude Skill you upload in Customize > Skills. You paste or upload your league info and ask about your league. It's advice only, and it never touches your team. Pro is the full agent. It works in your own signed-in ESPN tab, builds your weekly plan, and prepares your moves (lineup, waivers, trade offers, IR moves and chat messages): the exact change and the steps. You make each move on ESPN yourself. If you want to see how it thinks first, start with Lite. If you want it reading your league and lining up each move, paid Pro is planned for Monday, Nov 2.
Pro: you log in to ESPN yourself, in your own Chrome, the way you always do. The agent never asks for your password, never sees it, and never copies or stores your login cookies. It works in the ESPN tab you're already signed into, in a visible browser window. Tendency has no account system, no server for your data and no tracking in Pro. Pro's league data, manager profiles and logs sit in a folder on your computer, and what you ask Claude to read is processed by your Claude plan, under Anthropic's terms. Lite: it never asks for a password, cookie or token, and it never clicks or changes anything on ESPN. What you paste or upload is processed in your own Claude account, under Anthropic's terms, and Lite has no Tendency server. Please never paste a password or cookie into any chat. We will never ask for one.
Lite can't make moves. It only gives advice. Pro doesn't make moves either. For a lineup change, waiver claim, trade offer or response, IR move or league chat message, it shows you the exact change and numbered steps. You make the move on ESPN and tell Pro when you're done. Pro then re-reads your league and records the result as verified, not done, failed or unknown. There is no autopilot and no scheduled moves. Everything is logged in a file on your computer that you can read. Handoffs and result checks are offline-tested only; live verification is pending.
Lite: a Claude account with Skills and code execution turned on, and your league info to paste or upload. No terminal and no Python install. Pro: a Claude Pro plan or higher from Anthropic (about $20 a month, or $17 billed yearly), Google Chrome, the Claude desktop app, the Claude in Chrome extension, and an ESPN season-long fantasy football league, plus Python 3.9 or newer. Claude is a separate subscription that you pay Anthropic. No coding for either edition: setup is click-and-paste steps. Note that Skills you upload aren't reviewed by Anthropic, so you can open the Lite ZIP and read it first.
ESPN's terms of use limit automated access to its sites. We built Pro to read your league inside your own signed-in browser and to leave every change to you, but we can't promise how ESPN will treat any tool like it, and ESPN could restrict an account. You are responsible for your own account and your league's rules. At setup you read a plain-English risk notice and you're asked to accept it before your first move handoff. If that isn't for you, the 14-day refund covers it. Lite doesn't touch ESPN; you paste or upload your own info.
Yes. Full refund within 14 days of buying, for any reason, including "it didn't install" and "I changed my mind." Email support@tendencysports.com with the address you used at checkout. If you're stuck on setup we'll gladly help first, but you don't have to accept help to get your money back. After 14 days we can't refund because a projection was off or your team lost.
Lite: ESPN today (paste or CSV; screenshots in beta). Lite never looks up a league ID or connects to a league account. Pro: ESPN only today. Yahoo isn't supported yet and we haven't promised it. Lite is a Claude Skill, so it needs Claude. There is no ChatGPT version of Lite. A Codex edition of Pro is in testing and, like Pro on Claude, would leave every move to you.
No. It gives you an estimated win chance with the inputs behind it, and estimates can be wrong. It's built to help you make better-informed calls each week, not to promise results. Fantasy football is part skill, part chaos, and that's the fun of it.
Lite for football and Basketball Lite are separate purchases: $19 and $19, each one payment with no auto-renew. Lite updates and support run through Feb 28, 2027, whenever you buy. Basketball Lite updates and support are planned through the 2026-27 NBA regular season (end date set at launch).
Pro starts as a free beta, planned for Monday, Oct 19: 25 spots, 90 days each, for testers 21+ with Claude Pro or higher and an ESPN league who sign the Beta Tester Agreement with their full name. Applications open then; get the launch email to hear when. Paid Pro is planned for Monday, Nov 2, at $29 for the first 100 buyers, with updates and support through Feb 28, 2027.
Lite is planned for Monday, Oct 19. Get the launch email.
