Your Sleeper league, just ask

Connect Sleeper to ChatGPT & Claude

League Loom is a free, read-only connector that lets ChatGPT and Claude read your Sleeper league from just your username, with no password or cookies.

Ask about NFL and NBA rosters, standings, matchups and waivers. Add it on a computer, then ask in Claude's phone app or ChatGPT on the web.

Free connector · ESPN, Sleeper & Fantrax · Works with compatible AI tools

Looking for Claude-only setup steps? See Connect Sleeper to Claude.

Looking for the Sleeper MCP or API details? See Sleeper MCP server.

Looking for help reconnecting your AI app? See League Loom support.

Last updated

See it with a real team

Your teams. A useful answer.

A recorded check-in with real teams.

AI Assistant
Claude, ChatGPT & more
League Loom
Waller? I Hardly Know Her · Full PPR · Superflex
What needs attention in my Week 8 lineup?
Monitor Aaron Jones in flex and compare cover already on your bench.
QUESTIONABLEAaron Jones(Flex starter)Sleeper
RB
Jordan Mason and RJ HarveyBench
Both listed active. Review their expected workloads and matchups if you need flex cover.

Follow Jones's recovery and practice updates before the next eligible lineup period. Rachaad White is another active bench option. An active injury designation does not establish workload or make one of them the automatic replacement.

Burrow occupies quarterback and Darnold superflex. Jefferson, Godwin and Douglas occupy your receiver slots. Confirm Sleeper's lock and AutoSub rules before any change; this recorded check does not establish that a player can be moved now.

Ask about your leagues…

Your first useful answer

Bring your next decision to your AI

Choose where you play and what you want to check. Connect once, then reuse the prompt whenever you need it.

Using Meta Muse? Follow the chat-based Muse setup guide.

These choices are remembered in this browser for seven days.

Using another AI tool? See all connection instructions

What the setup page looks like

Screens from leagueloom.com/setup, shown with empty fields. Select a screen to open it full size.

League Loom setup page titled Which platforms do you use?, with the Sleeper card selected, ESPN and Fantrax unselected, and an active Continue button.
In the setup wizard (opened by the connector sign-in, or directly at leagueloom.com/setup), pick Sleeper and select Continue. You can pick ESPN and Fantrax in the same setup.
League Loom Sleeper setup step with an empty Username field, a Sport menu set to NFL, help text on finding your username in the Sleeper app, and a Find my leagues button.
Sleeper step: enter your Sleeper username, choose the sport, and select Find my leagues. No password is needed because Sleeper league data is public.

In a phone browser

The League Loom setup page in a phone browser, titled Which platforms do you use?, with the Sleeper card selected.
The setup page also opens in a phone browser. Adding the connector in Claude or ChatGPT is easiest on a computer; once it is added, you can ask from Claude's phone app, while ChatGPT runs it on the web.
The League Loom Sleeper setup step in a phone browser, with an empty Username field and help text on finding your username in the Sleeper app.
On a phone, the Sleeper step needs only your username, which the Sleeper app shows under your display name on your profile.

Before you start

What you need for Sleeper

Your username

Use the account username, not a league name or team display name. Reading supported league data needs no password, cookies, or Sleeper account token.

The correct sport and season

NFL and NBA leagues are supported. Check the season and selected team if discovery does not show the league you expect.

Realistic data expectations

For an explicit regular-season NFL week, League Loom can calculate projections from Sleeper projected stats and your league scoring. Partial coverage is labeled; missing projections are not zero. Ownership percentages are unavailable.

Worked example

Turn a roster check into a waiver question

Illustrative walkthrough for a sample Sleeper football league. No real player availability or bid outcome is implied.

  1. Identify your team

    Confirm the league, season, and selected roster so an available-player search uses the correct league.

  2. Check your resources

    Ask for available players, roster needs, and remaining FAAB or waiver priority. Have the assistant flag any missing field.

  3. Review the trade-off

    Ask which available player fits an immediate need and what you lose by dropping someone. A suggested bid is the AI's judgment, not a prediction of competing bids.

More about this connection

Sleeper league data can be read with a username, so setup needs no Sleeper password or account token. League Loom supplies your league context; your AI tool interprets it.

For example, the assistant can compare available players with your roster needs and use your remaining FAAB and waiver priority where returned. For an explicit regular-season NFL week, League Loom can calculate Sleeper league projections from available projected stats and your scoring settings.

Partial or unavailable coverage is labeled. Ask the assistant to identify missing information and cite any outside research separately. No League Loom tool can change your league; you make roster moves in Sleeper.

Before you connect

Questions, answered

Is the Sleeper connector free?

League Loom is free, with no subscription or per-league fee. Fair-use request budgets apply. Your chosen AI service has its own account and access requirements. No League Loom tool can change your league; you make roster moves yourself.

Do I need a Sleeper password?

No, just your Sleeper username. Sleeper's data is public, so that's all League Loom needs to find your leagues and read your team.

What can I ask about my Sleeper team?

Anything League Loom can read: byes and injuries, the best available waiver adds, your weekly matchup and score, standings, your roster, and your draft, for one league or all of your teams at once.

Does my Sleeper username grant write access?

No. A Sleeper username only finds public league data.

Can League Loom see my FAAB budget and waiver priority in Sleeper?

Yes. For Sleeper leagues specifically, League Loom reads each team's remaining FAAB budget and waiver-claim priority, so you can ask how much you have to bid before making a move, or where you rank in the waiver order.

Does League Loom show my Sleeper taxi squad and IR?

Yes. It reads taxi-squad and IR assignments straight from your Sleeper reserve slots, so you can ask who's stashed, who's eligible to be activated, and how those roster spots affect your active lineup.

Can League Loom help with dynasty or keeper decisions in Sleeper?

It can read roster construction, player data, and recent transactions. Supply any keeper costs or contract rules that are not returned, and ask the assistant to separate those assumptions from league facts.

Is League Loom free?

Yes. The MCP server and connector are free, with no subscription and no per-league fee. Fair-use request budgets apply. Connect supported ESPN, Sleeper, and Fantrax leagues and ask questions from your AI tool.

Can I set League Loom up on my phone?

Add the connector on a computer: claude.ai or Claude Desktop, or ChatGPT on the web. What works on a phone afterward depends on the assistant. In Claude, a connector added on the web or desktop is also available in the Claude iOS and Android apps, so you can ask about your leagues from your phone. In ChatGPT, custom apps like League Loom currently run only on the web, not in the ChatGPT phone apps. If you start on a phone, use Send to my computer to email or message yourself the link and finish later.

Before you connect a league, read how League Loom is built, what the privacy policy says is stored, the terms of service and the full FAQ, or check the press kit with key facts and who builds it.