Fantrax
League Loom supports Fantrax alongside ESPN and Sleeper. Check the sport and data coverage for your league.
The fantasy AI field guide
League Loom vs Flaim
League Loom and Flaim are both free, read-only fantasy league connectors for Claude and ChatGPT.
As of September 26, 2026, League Loom supports ESPN, Sleeper and Fantrax, while Flaim's documentation lists ESPN, Sleeper and Yahoo. Choose by your platforms and how you prefer to connect ESPN. League Loom is added on a computer, then works in Claude's phone app.
Looking for more than two tools? See Best AI for fantasy football.
Last updated
Side by side
Compare the documented capabilities
Scroll the table sideways to compare all options.
| League Loom | Flaim | |
|---|---|---|
| Connector price | Free | Free |
| ESPN and Sleeper | Supported | Supported |
| Fantrax | Supported | Not listed in coverage docs |
| Yahoo | Not supported | Supported |
| Sports | Football, basketball, baseball and hockey; WNBA on ESPN; Sleeper is NFL and NBA only | Football, baseball, basketball and hockey on ESPN and Yahoo; football and basketball on Sleeper |
| ESPN setup | Public league URL or private-league cookies | Chrome extension for initial sync |
| Sleeper setup | Username | Username |
| Current roster moves | No move-submission tools | Read-only |
| AI setup | Custom connector in Claude, ChatGPT or another MCP client | ChatGPT and Claude directory listings; custom connector steps for Perplexity, Gemini, Grok and other MCP clients |
Published by League Loom from linked product documentation, checked September 25 and 26, 2026. Both connectors are free; your AI service may have separate requirements. No prediction-accuracy ranking is implied.
Sources checked . Published by League Loom. Flaim's home page and AI setup guide were checked September 26, 2026, and its sports coverage page September 25, 2026. These are documented features, not tested prediction accuracy, and either product's coverage can change.
League Loom coverage and tools · Flaim coverage and pricing · Flaim AI setup · Flaim sports and platforms
Find your fit
Choose by platform and setup
Yahoo
Flaim documents Yahoo sign-in. League Loom does not currently support Yahoo.
ESPN and Sleeper
Both offer these hosts. Compare the setup method and try one question using your own roster.
Both services supply league context for an AI assistant to analyze, and neither submits roster moves. League Loom is a free hosted connector with Fantrax support.
Flaim documents Yahoo support, which League Loom does not offer. For ESPN, League Loom accepts a league URL for public leagues and browser cookies for private leagues; Flaim documents a Chrome extension for the initial ESPN sync.
Both connect Sleeper with a username. Flaim links directory listings for ChatGPT and Claude, while League Loom is added as a custom connector.
Review the provider-specific steps before choosing, especially if you are starting from a phone.
Try League Loom
Bring your own league into the conversation
1
Add the connector
In Claude or any MCP tool, add a custom connector; in ChatGPT on the web, turn on developer mode and use the + button on the Plugins page. Give it a name and paste the League Loom URL as the server address.
2
Choose your leagues
Load your leagues in the setup wizard. Select a personal team for team-specific help, or leave it unselected for league overviews. No API keys.
3
Just ask
Ask about your roster, waivers, matchups, and more, in plain language, across every league.
Remote connector URL
https://leagueloom.com/mcpAdd this URL in your AI tool, then follow the guided setup.
On your phone? Send yourself this setup link to finish on a computer.
Before you connect
Questions, answered
What is the main difference between League Loom and Flaim?
League Loom supports Fantrax alongside ESPN and Sleeper. Flaim documents Yahoo alongside ESPN and Sleeper. Both connect league data to AI assistants; their setup methods also differ.
Which service should I choose for Yahoo?
League Loom does not support Yahoo. Flaim lists Yahoo support in its documentation; check its current coverage and setup requirements.
Do I need a browser extension for ESPN?
League Loom uses a public league URL or your own private-league cookies without an extension. Flaim documents using its Chrome extension to sync ESPN leagues.
Which AI assistants does each one work with?
League Loom is added as a custom connector in Claude, ChatGPT or another MCP client that supports its hosted endpoint and sign-in. Flaim's setup guide links its ChatGPT and Claude directory listings and gives custom connector steps for Perplexity, Gemini, Grok and other MCP clients that support custom connectors.
Can League Loom submit a waiver claim?
No. All current League Loom tools retrieve or analyze data. You submit claims and other roster moves in your fantasy platform. Flaim also documents read-only access.
Is League Loom free?
Yes. The connector is free, with fair-use request budgets. Your chosen AI service may have separate plan and connector requirements.
When was this comparison last checked?
Flaim's home page and AI setup guide were checked on September 26, 2026, and its sports coverage page on September 25, 2026. Product coverage changes, so confirm the current details on each site before you choose.
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.