League Loom
Fantrax or a mix of supported hosts in your existing AI assistant.
The fantasy AI field guide
Which tools connect fantasy sports data to AI?
A fantasy MCP server is a hosted endpoint that lets an AI assistant read your league, and League Loom is one at leagueloom.com/mcp covering ESPN, Sleeper and Fantrax for free.
Flaim, FantasyPros and STACKED also connect to existing assistants, while RotoBot, Oddsmyth and Fantasy Life provide their own league-aware experiences. Start with your league host, then compare access, setup and the questions each product can answer.
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AI Assistant
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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.
Start by looking for center eligibility. None of your seven rostered players is listed at center.
| Fantrax roster positions | Players |
|---|---|
| Guard | 4 |
| Forward | 3 |
| Center | 0 |
You have 7 players against an 11-player roster limit. Build a shortlist of center-eligible players, then check who is available and what your league's acquisition rules allow.
Your first roster period starts October 20. Use preseason to compare roles and health before choosing. Use Fantrax's listed eligibility when comparing options.
1
Saved by the GendronsESPN · Football · Week 3
Flowers is out and already in IR. Jefferson and Metcalf are your starting receivers. Watch Dobbins' questionable status before relying on him for bench depth.
2
Boars on the (Parquet) FloorFantrax · Basketball · Preseason
Seven players are rostered, with four listed at guard and three at forward. Review center-eligible options before the first roster period starts October 20.
3
Waller? I Hardly Know HerSleeper · Football · Week 3
Price is questionable in your flex slot. Darnold is out on the bench, with Drew Lock in superflex. You have $350 of your waiver budget remaining.
Check the football injury updates before deciding on moves, and build a basketball shortlist during preseason. Confirm each league's deadline and player eligibility before making changes.
$350 left. Prioritize a player you could actually use.
| Your waiver budget | Amount |
|---|---|
| Started with | $1,000 |
| Used so far | $650 |
| Still available | $350 |
Price is questionable in your flex slot, and RJ Harvey is out on your bench. Start by checking their recovery and the expected roles of your other flex options before paying for more depth.
Darnold is also out on the bench, with Drew Lock in your superflex slot. Compare the actual available players and waiver timing before choosing a bid. A pickup cannot replace a locked player.
Ask about your leagues…
Side by side
Compare the documented capabilities
| Connection and league hosts | Access | Useful when | |
|---|---|---|---|
| League Loom | External AI connector: ESPN, Sleeper, Fantrax | Free connector; AI service requirements apply | Fantrax or a mix of supported hosts in your existing AI assistant. |
| FantasyBot | External MCP plus web/iOS app: ESPN, Yahoo, Sleeper | Free to start; Pro available; check current limits | An app or AI connector with its own documented analysis tools. |
| Flaim | External AI connector: ESPN, Yahoo, Sleeper | Free; AI service requirements apply | A free connection including Yahoo; ESPN setup uses its extension. |
| FantasyPros | External MCP plus its own synced-league tools | Free account to start; certain advice tools require premium | An established fantasy tool suite, also available through MCP. |
| STACKED | External MCP plus its own fantasy football suite | MCP included for subscribers | Purpose-built analysis tools and market data in your AI assistant. |
| RotoBot | Its own web/mobile experience; ESPN, Yahoo, Sleeper sync | Check current app plans | A standalone fantasy chat experience with league sync. |
| Oddsmyth | Its own co-manager; Yahoo and ESPN sync | Free credits and paid usage; check current terms | A dedicated fantasy co-manager with public guides and examples. |
| Fantasy Life | Personalized tools; Draft Companion for ESPN/Yahoo | Draft Companion requires the applicable paid tier | Editorial research and a dedicated live-draft companion. |
External MCP is documented for League Loom, FantasyBot, Flaim, FantasyPros and STACKED. The other rows describe their own reviewed product experiences; they are not interchangeable connector features. Check each product's sport-specific support.
Scroll the table sideways to compare all options.
Sources checked . Published by League Loom. FantasyBot documentation checked September 20, 2026; other competitor rows retain the September 10 review. These are documented features, not tested prediction accuracy. Provider, sport, plan and client support can change.
League Loom coverage and tools · FantasyBot MCP and read-only tools · FantasyBot free and Pro access · Flaim coverage and pricing · Flaim AI setup · FantasyPros MCP and access · STACKED MCP · RotoBot football · Oddsmyth product · Fantasy Life Draft Companion
Find your fit
Choose the connection that fits your leagues
FantasyBot
An app or AI connector with its own documented analysis tools.
Flaim
A free connection including Yahoo; ESPN setup uses its extension.
FantasyPros
An established fantasy tool suite, also available through MCP.
STACKED
Purpose-built analysis tools and market data in your AI assistant.
RotoBot
A standalone fantasy chat experience with league sync.
Oddsmyth
A dedicated fantasy co-manager with public guides and examples.
Fantasy Life
Editorial research and a dedicated live-draft companion.
An external connector brings league context into an AI assistant you already use. A standalone advisor supplies its own chat or research experience.
Some products offer both. League Loom connects ESPN, Sleeper and Fantrax, including multiple configured leagues, with no connector subscription.
Your AI service may have separate access requirements. Test one roster question and ask the assistant to identify the league data it retrieved, what it inferred and what is unavailable.
League Loom does not support Yahoo or submit roster moves. The technical ESPN guide explains its endpoint and authentication; the football comparison focuses on weekly decisions and draft workflows.
Try League Loom
Bring your own league into the conversation
1
Add the connector
In Claude, ChatGPT, or any MCP tool, add a custom connector, 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 a fantasy sports MCP connector?
It lets an AI assistant call tools that retrieve fantasy league data. League Loom supplies rosters, standings, matchups and other supported context; the assistant uses those results to answer your question. Features and league hosts differ by connector.
Which free connectors can I compare?
League Loom and Flaim both advertise free connector access. League Loom supports ESPN, Sleeper and Fantrax; Flaim documents ESPN, Sleeper and Yahoo. FantasyPros offers a free account to start, with certain advice tools requiring premium. Your AI service can have separate costs.
Can I connect Fantrax or multiple providers?
League Loom supports Fantrax alongside ESPN and Sleeper, including multiple configured leagues in one connection. Check the provider and sport matrix for the data available in each league. FantasyPros also offers Fantrax league sync; Fantrax access is not exclusive to League Loom.
Can I compare my fantasy players across multiple platforms in Claude?
League Loom can retrieve the players you roster across configured ESPN, Sleeper and Fantrax leagues. Ask Claude to list your football players across leagues and identify repeated players, or request a weekly digest across your configured teams. The real-team example shows a Sleeper lineup check and ESPN bench injuries in one answer. Keep comparisons within the relevant sport and scoring context, and identify missing data separately. A roster inventory does not by itself establish trade value or submit a roster move.
Can I use these tools in Perplexity?
Flaim publishes Perplexity setup instructions. League Loom uses a hosted Streamable HTTP endpoint with OAuth; Perplexity account and connector requirements must also be satisfied. A completed League Loom connection in Perplexity has not yet been verified for this guide. Do not assume generic MCP support guarantees compatibility.
Does an AI connection let the assistant make roster moves?
All current League Loom tools retrieve or analyze data. They do not submit lineups, trades or waiver claims. Check other products individually, and distinguish a recommendation from a submitted move.