One assistant, every sport you play

Claude for fantasy sports: NBA, NHL, MLB and NFL

Claude can read your fantasy basketball, hockey, baseball and football leagues once you add League Loom, a free, read-only connector for ESPN, Sleeper and Fantrax, under Customize, Connectors.

Its built-in prompts then sit in Claude's connector menu. Add it on a computer, then ask from Claude's phone app too; it also works in ChatGPT on the web.

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

Looking for football only? See Claude for fantasy football.

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Your teams. A useful answer.

A recorded check-in with real teams.

AI Assistant
Claude, ChatGPT & more
League Loom
Saved by the Gendrons · ESPN
Where is my injury risk heading into Week 3?
Flowers is already in IR. Check Dobbins before relying on your bench depth.
OUTZay Flowers(Already in IR)ESPN
QUESTIONABLEJ.K. Dobbins(On your bench)ESPN

Charbonnet is also out and in IR. Jefferson and Metcalf occupy your receiver slots, so Flowers' recovery is a future lineup decision. Recheck Dobbins' status before counting on him as an alternative.

Kamara is on your bench and his latest report lists him active. Compare expected usage before promoting him, then confirm ESPN's lineup deadline and eligibility.

Ask about your leagues…

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

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Using another AI tool? See all connection instructions

Before you start

What Claude needs before it can read your leagues

A Claude account that can add connectors

Custom connectors live under Customize, then Connectors; the older Settings, Connectors path now shows a notice instead of that screen. Your plan or workspace administrator may limit access. League Loom is free, but it does not include a Claude subscription.

Access to each fantasy league

Sleeper needs only a username. A public ESPN league needs its league URL, and a private one also needs your espn_s2 and SWID cookies. Fantrax uses the league URL, with an optional Secret ID.

Six prompts in the connector menu

Once the connector is added, Claude's connector menu lists League Loom's built-in prompts: My teams, Weekly rundown, Weekly newsletter, Waiver and free-agent targets, Lineup help and a one-league Power ranking. Pick one instead of typing the request.

Basketball: ESPN, Sleeper and Fantrax

Points and category NBA leagues connect from all three platforms, and ESPN also covers WNBA. Start with Lineup help on a crowded game night, and ask Claude to name any per-player stat category the provider did not return before a punt or streaming call.

Hockey: ESPN and Fantrax

League Loom reads NHL leagues from ESPN and Fantrax, not Sleeper. Rosters, standings, matchups and available players come back; confirmed goalie starts and full NHL game schedules do not, so have Claude list them as open questions before you stream a goalie.

Baseball: ESPN and Fantrax

League Loom reads MLB leagues from ESPN and Fantrax, not Sleeper. Ask Claude for your roster, standings and the best available hitters and pitchers. Fantrax may also return player salaries, and Fantrax matchups need a publicly viewable league.

Football: all three platforms

ESPN, Sleeper and Fantrax NFL leagues all connect, and Sleeper NFL projections can be calculated for a named regular-season week, with coverage limits labeled. The Claude football walkthrough adds five copyable weekly prompts.

Worked example

A first week in Claude, league by league

Try the real-team example above, then run the same checks on your own leagues from Claude's connector menu.

  1. Start with My teams

    Pick My teams from the connector menu so Claude lists every connected league with its record and rank. If a league is missing, go back to setup and check the account, sport and season.

  2. Run the weekly rundown

    Pick Weekly rundown for this week's matchup in every league. Ask Claude which sections the provider did not return instead of letting it fill gaps from memory.

  3. Take one decision further

    Follow up in the same chat with one call, such as a flex spot or a goalie stream, and have Claude keep league data apart from outside news. Make the move yourself in the fantasy app.

More about this connection

Claude needs a connector to read your fantasy leagues, and League Loom is that connector: add it once under Customize, Connectors, choose your supported leagues and confirm which team you manage. One connection can hold basketball, hockey, baseball and football leagues together, up to 25 leagues per platform, so a single Claude chat can weigh them side by side.

League Loom supplies the data each provider returns and Claude interprets it, so ask Claude to name missing fields and cite outside news separately. No current tool submits a lineup change, trade or waiver claim.

Before you connect

Questions, answered

Where do I add League Loom in Claude?

Open Settings, then Customize, then Connectors, and choose Add, then Add custom connector. Name it League Loom, paste https://leagueloom.com/mcp as the Remote MCP server URL and click Add; nothing under Advanced settings needs changing. Approve the sign-in, then pick your leagues.

Do League Loom's prompts appear inside Claude?

Yes. Claude's connector menu lists six built-in League Loom prompts, including Weekly rundown, Waiver and free-agent targets and Lineup help. Pick one and Claude runs it against your connected leagues. Longer routines, such as the draft kits, are on the prompt library page to copy.

Is Claude with League Loom free?

League Loom is free, with no connector subscription or per-league fee; fair-use request budgets apply. Claude has its own plans, and a workspace administrator may control whether custom connectors can be added.

Can I ask Claude about my leagues from my phone?

Yes, once the connector is added. Add it on claude.ai or Claude Desktop first: Claude's help center says a connector added there is available in the Claude iOS and Android apps the next time you sign in, and recommends web or desktop for custom connectors. After that, ask about your leagues from your phone.

Which fantasy sports can Claude read?

Football and basketball from ESPN, Sleeper and Fantrax, plus ESPN WNBA; hockey and baseball from ESPN and Fantrax, because League Loom reads Sleeper for NFL and NBA only. Confirmed goalie starts and full NHL or NBA game schedules are not returned, and per-player stat categories vary by provider, so ask Claude to flag what is missing.

Why can't Claude see my league?

Check that League Loom is enabled in the conversation, then check the provider, sport, season and account used in setup. Private ESPN leagues need fresh espn_s2 and SWID cookies after they expire. If Add custom connector is missing, your plan or workspace settings may not allow custom connectors.

Can Claude change my lineup through League Loom?

No. All current League Loom tools retrieve or analyze data. Review the recommendation and make any lineup change, waiver claim or trade in your fantasy platform.

Is this the same as the Claude fantasy football guide?

No. This page covers every sport Claude can read through League Loom. For the weekly NFL routine with five copyable prompts, including a rate my team ask, use the Claude fantasy football walkthrough. For a private ESPN league, start with the ESPN to Claude guide.

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.