# League Loom > Connect Claude, ChatGPT, and AI tools to your ESPN, Sleeper, and Fantrax fantasy leagues. Ask about rosters, waivers, and matchups. Read-only and private. League Loom uses the Model Context Protocol (MCP). You add it once as a custom connector in your AI tool, pick your teams in a short wizard (no API keys, no coding), then ask questions in plain language. It is read-only, so it never changes your lineup or makes moves. It is free to use. ## Key facts - Works with: Claude, ChatGPT, and any MCP-compatible AI tool - Fantasy platforms: ESPN, Sleeper, and Fantrax - Sports: NFL, NBA, MLB, and NHL on ESPN and Fantrax; NFL and NBA on Sleeper - Price: free to use (no paid tier) - Privacy: read-only; credentials are sealed into your own encrypted connection, not stored in a database - Connector URL: https://leagueloom.com/mcp ## Pages - [Home](https://leagueloom.com/): what League Loom is, features, how it works, prompts, and popular questions - [FAQ](https://leagueloom.com/faq): full answers about setup, Claude, ChatGPT, platforms, sports, privacy, tools, and prompts - [Use cases](https://leagueloom.com/use-cases): the hub of every League Loom use case and guide, grouped by platform, sport, and task - [Prompts](https://leagueloom.com/prompts): a library of ready-made fantasy prompts (weekly newsletter, waiver report, lineup check, and more) - [Capabilities](https://leagueloom.com/capabilities): which fantasy providers and sports League Loom supports, with a provider by capability matrix and the full read-only tool reference of every command an AI client can call - [Connect Fantrax to ChatGPT & Claude](https://leagueloom.com/fantrax): League Loom is one of the only ways to connect a Fantrax league to ChatGPT, Claude, or another AI tool. Add the connector, pick your team, and ask about your roster, standings, matchups, and available players in plain language. It stays read-only and free. - [Connect ESPN Fantasy to ChatGPT & Claude](https://leagueloom.com/espn): League Loom connects your ESPN fantasy league to ChatGPT, Claude, and other AI tools so you can ask start/sit, waiver, trade, and matchup questions in plain language, using your real roster instead of guesswork. Public leagues need nothing to connect; private leagues authenticate with two browser cookies (espn_s2 and SWID) instead of your ESPN password. It covers NFL, NBA, MLB, NHL, and WNBA, and works whether you run one ESPN league or several. Read-only and free. - [Connect Sleeper to ChatGPT & Claude](https://leagueloom.com/sleeper): League Loom connects your Sleeper league to ChatGPT, Claude, and other AI tools using just your Sleeper username, no password needed. It reads your roster, matchups, standings, and transactions, then answers in plain language. Ask about waiver targets and FAAB budget, taxi squad and IR status, or which of your dynasty players are aging out of their prime. Read-only and free. - [AI for Fantasy Hockey](https://leagueloom.com/fantasy-hockey): League Loom connects your ESPN or Fantrax fantasy hockey league to Claude, ChatGPT, or Gemini, so you can ask about your roster, the best available adds, and your standings answered from your live NHL league instead of pasted stats. - [AI Start/Sit Advice for Fantasy](https://leagueloom.com/start-sit-ai): League Loom lets you ask Claude, ChatGPT, or Gemini who to start this week, and it compares your two players by matchup, role, and injury status using live data pulled straight from your ESPN, Sleeper, or Fantrax league. It reasons from your actual roster and your league's own scoring format, not a generic ranking site, so a flex call in a PPR league gets weighed differently than the same players in a standard league. If one of your options is questionable or on a bye, that status shows up right in the comparison, not buried in a separate injury report. - [AI Waiver Wire Assistant](https://leagueloom.com/waiver-wire-ai): League Loom turns Claude, ChatGPT, or Gemini into a waiver wire assistant that ranks the best available players in your actual league by your roster needs, using live data from ESPN, Sleeper, and Fantrax. It surfaces trending adds, flags injury or bye status so it never recommends a sidelined player, and on Fantrax leagues it factors in salary and contract cost for auction-cap formats. Ask it once and it checks every league you've connected. - [ChatGPT for Fantasy Sports](https://leagueloom.com/chatgpt-fantasy-sports): Yes, ChatGPT can answer questions about your fantasy sports teams once you connect League Loom, a free, read-only connector that pipes your live ESPN, Sleeper, or Fantrax leagues straight into the chat. Add it as a custom connector, authorize with OAuth, and pick your teams. From there you can ask about rosters, standings, matchups, and waiver targets in plain English, no copy-pasting screenshots or stale spreadsheets required. - [Fantasy Sports MCP Server (ESPN, Sleeper, Fantrax)](https://leagueloom.com/fantasy-mcp-server): League Loom is a free MCP server that connects your ESPN, Sleeper, and Fantrax leagues to any MCP-compatible client, including Claude and ChatGPT. It runs as a stateless Streamable HTTP server when hosted (with stdio support for local use), authorizes each user through standards-based OAuth 2.1 with Dynamic Client Registration and PKCE, and exposes 14 read-only fantasy_* tools for rosters, matchups, standings, waivers, transactions, and more. It never sets lineups, makes trades, or claims players. - [Free AI Fantasy Assistant](https://leagueloom.com/free-ai-fantasy-assistant): League Loom is a genuinely free AI fantasy assistant, with no paid tier, no usage caps, and no per-league limit, ever. Connect as many ESPN, Sleeper, and Fantrax leagues as you want, and it hands live rosters, standings, matchups, and waiver-wire data to Claude, ChatGPT, or any AI tool you already use. Where most fantasy AI products meter you for a while and then ask for a subscription, League Loom stays free permanently because it only reads your league data, it never touches your lineup or your wallet. You just connect once with OAuth and start asking questions. - [AI for Fantasy Football, in Claude & ChatGPT](https://leagueloom.com/fantasy-football): League Loom connects your ESPN, Sleeper, or Fantrax NFL league directly to Claude, ChatGPT, or Gemini, so you can ask start/sit, waiver, and matchup questions and get answers built on your live roster, not stats you paste in by hand. It reads your rosters, standings, matchups, and transactions, and can explain your league's actual scoring and roster rules in plain English. Because it's read-only, it never touches your lineup, trades, or waiver claims, it just answers. - [AI for Fantasy Basketball](https://leagueloom.com/fantasy-basketball): League Loom connects your ESPN, Sleeper, or Fantrax NBA league to Claude, ChatGPT, or Gemini, so you can get waiver, streaming, and category-need advice built on your live roster instead of stats you copy and paste. It reads your actual standings, matchups, and rules, whether you're in a 9-cat rotisserie league, a head-to-head categories format, or a points league. It works the same for redraft and dynasty leagues, and it never touches your lineup or your team. - [AI for Fantasy Baseball](https://leagueloom.com/fantasy-baseball): League Loom connects your ESPN or Fantrax MLB league to Claude, ChatGPT, or Gemini, so you can ask about your roster, the best available pitchers and hitters to add, and add/drops using your live league instead of pasted-in stats. - [Best AI Tool for Fantasy Football](https://leagueloom.com/best-ai-fantasy-football): The best AI tool for fantasy football is one that reads your actual roster instead of guessing at generic advice. League Loom connects your ESPN, Sleeper, or Fantrax league to Claude, ChatGPT, and other MCP-capable AI clients, so the AI can see your real starting lineup, standings, and matchup before it answers. It's free with no paid tier, read-only (it never sets your lineup, makes a trade, or claims a waiver for you), and sign-in uses OAuth 2.1 with PKCE instead of pasting in an API key. - [Best AI for Fantasy Basketball](https://leagueloom.com/best-ai-fantasy-basketball): The best AI for fantasy basketball is one that knows your live roster and scoring format, not one guessing from generic rankings. League Loom connects your ESPN, Sleeper, or Fantrax NBA league directly to Claude and ChatGPT using free, read-only OAuth access, so it can see your actual team, category or points scoring, and standings. It's one of the only options that handles Fantrax category leagues, including college basketball and salary-cap data. It never sets lineups or makes moves; it only reads your league so the AI can answer. - [How to Use ChatGPT for Fantasy Football](https://leagueloom.com/how-to-use-chatgpt-for-fantasy-football): On its own, ChatGPT has no way to see your fantasy football league, so its start/sit and waiver advice stays generic no matter how much you paste in. This guide walks through connecting League Loom, a free, read-only MCP connector, so ChatGPT can read your live ESPN, Sleeper, or Fantrax roster and answer with your actual matchup, standings, and waiver pool. You'll learn the exact setup steps, what ChatGPT can and can't do once connected, and example prompts to try on your own league. - [AI Fantasy Trade Analyzer](https://leagueloom.com/trade-analyzer-ai): League Loom lets Claude or ChatGPT grade a fantasy trade against your actual roster and league settings, so you get a fair-value verdict instead of a generic guess from pasted stats. - [AI Fantasy Lineup Optimizer](https://leagueloom.com/lineup-optimizer-ai): League Loom connects Claude or ChatGPT to your live ESPN, Sleeper, or Fantrax roster so it can check your starting lineup and recommend changes before kickoff. It flags any starter on a bye, listed as injured, or tagged questionable, and points to a healthy bench player who could take that spot. You still make the swap yourself in your league app. Nothing gets set or submitted automatically. - [AI Fantasy Draft Assistant](https://leagueloom.com/draft-assistant-ai): League Loom connects Claude, ChatGPT, or any MCP-compatible AI to your live ESPN, Sleeper, or Fantrax draft, reading who's already been picked, your current roster, and your league's scoring rules to surface the best available player for your team's needs, round by round. It's read-only: the AI gives you pick advice and reasoning, it never makes the pick or auto-drafts for you. You stay on the clock and stay in control, in your own draft room. - [AI Fantasy Power Rankings](https://leagueloom.com/power-rankings-ai): League Loom connects your ESPN, Sleeper, or Fantrax league to Claude or ChatGPT and builds power rankings from live standings, rosters, and recent results, so the AI ranks every real team in your league, not generic ones. - [AI Bye Week & Injury Checker](https://leagueloom.com/injury-bye-checker): League Loom connects your fantasy leagues to Claude or ChatGPT and scans your live rosters for byes, injuries, and questionable tags across every team, so you never start an inactive player by accident. It reads current injury designations (questionable, doubtful, out, IR) straight from your provider and cross-checks them against your league's schedule to catch bye weeks too. This works across ESPN and Sleeper, including Sleeper leagues where injury status lives separately from your roster data, so a hidden tag never slips past a quick check. Fantrax injury data is enriched from Sleeper's data where a player match exists, but coverage there is less complete, so double-check anything Fantrax-specific before you finalize a lineup. - [Ask AI About All Your Fantasy Teams at Once](https://leagueloom.com/all-my-teams): League Loom connects every one of your fantasy leagues, including ESPN, Sleeper, and Fantrax, to Claude or ChatGPT, so a single question can scan all your teams at once instead of you hopping between apps. Once your leagues are linked, you can ask about one team by name or ask across all of them at once, like which teams have a bye-week starter this week or where your best waiver targets are league by league. It works the same way whether you run two leagues on one platform or five leagues split across ESPN, Sleeper, and Fantrax. - [Use Claude for fantasy sports](https://leagueloom.com/claude-fantasy-sports): League Loom is a free MCP connector that brings your fantasy leagues into Claude, so you can ask about your roster, standings, matchups, and waivers in plain language. It works across ESPN, Sleeper, and Fantrax, and can read every sport and every league you join at once. The same connector also works with ChatGPT and other MCP-capable AI tools, and it stays read-only. - [How to use Claude for fantasy football](https://leagueloom.com/how-to-use-claude-for-fantasy-football): To use Claude for fantasy football, connect your league with League Loom: add the connector, pick your NFL team, and ask Claude about your roster, start/sit calls, waivers, and matchups in plain language. It works with ESPN, Sleeper, and Fantrax leagues, and it stays read-only, so Claude can read your league but never changes your lineup. It is free and needs no API keys. - [The best AI for fantasy baseball](https://leagueloom.com/best-ai-fantasy-baseball): League Loom is the best way to put a real fantasy baseball league into an AI tool, because it reads your actual roster instead of guessing. Connect your ESPN or Fantrax MLB league to ChatGPT or Claude, then ask about your lineup, standings, matchups, and available hitters and pitchers in plain language. It stays read-only and free, and it can look across all your leagues at once. - [What is the best AI for fantasy hockey?](https://leagueloom.com/best-ai-fantasy-hockey): The best AI for fantasy hockey is the one that can actually read your league, and League Loom does exactly that. Connect your ESPN or Fantrax NHL team to ChatGPT, Claude, or another AI tool, then ask about your roster, waivers, and matchups in plain language. It stays free and read-only, so it never changes your lineup. - [AI for dynasty fantasy football](https://leagueloom.com/dynasty-fantasy-football-ai): League Loom connects your dynasty league to ChatGPT, Claude, or another AI tool so you can reason about long-term roster value, not just this week. Ask about contracts and keeper costs, weigh a win-now trade against future picks, and plan your rookie draft in plain language. It stays read-only and free, so the AI helps you analyze and decide while you make every move yourself. - [League Loom vs Flaim](https://leagueloom.com/flaim-alternative): League Loom and Flaim both connect your fantasy leagues to AI, read-only. The difference: League Loom adds Fantrax (which Flaim does not cover), works with Claude, ChatGPT, and any MCP tool, and is free. Flaim's edge is Yahoo, which League Loom does not support yet. If you play on Fantrax or want a free option, League Loom is the fit; if you need Yahoo today, Flaim is. - [Fantrax trade analyzer, powered by AI](https://leagueloom.com/fantrax-trade-analyzer): League Loom connects your Fantrax league to Claude, ChatGPT, or another AI tool so you can ask whether a trade helps your team. It reads your real roster, your category or points standings, and your salary-cap or contract data, then gives an opinionated read on the deal. Most AI fantasy tools skip Fantrax; this one is built for it. Read-only and free. - [Fantrax NBA, answered by AI](https://leagueloom.com/fantrax-nba): Fantrax runs many of the deepest NBA dynasty, keeper, and salary-cap leagues, and almost no AI tool can read them. League Loom can: connect your Fantrax NBA league to Claude, ChatGPT, or another AI tool and ask about your standings, your roster and player salaries, matchups, and the waiver wire in plain language. Read-only and free. - [Fantrax MLB, answered by AI](https://leagueloom.com/fantrax-mlb): Fantrax runs many of the deepest MLB leagues anywhere, with minor leaguers, huge benches, dynasty contracts, and salary caps, and almost no AI tool can read them. League Loom can: connect your Fantrax MLB league to Claude, ChatGPT, or another AI tool and ask about your roto or points standings, your pitching streamers, your category needs, and the waiver wire in plain language. Read-only and free. - [Fantrax NHL, answered by AI](https://leagueloom.com/fantrax-nhl): Fantrax runs many of the deepest NHL banger, multi-category, and dynasty leagues, and almost no AI tool can read them. League Loom can: connect your Fantrax NHL league to Claude, ChatGPT, or another AI tool and ask about your standings, your roster, matchups, and the waiver wire in plain language. Read-only and free. - [Fantrax NFL, answered by AI](https://leagueloom.com/fantrax-nfl): Fantrax runs many of the deepest NFL dynasty, IDP, and devy leagues, and almost no AI tool can read them. League Loom can: connect your Fantrax NFL league to Claude, ChatGPT, or another AI tool and ask about your roster, your IDP and offensive scoring, start/sit calls, and the waiver wire in plain language. Read-only and free. - [AI for Fantrax dynasty leagues](https://leagueloom.com/fantrax-dynasty-ai): Fantrax is the home of dynasty across every sport, with multi-year contracts, salary cap, and deep prospect stashes that almost no AI tool can read. League Loom can: connect your Fantrax dynasty league to Claude, ChatGPT, or another AI tool and ask whether to rebuild or contend, which contracts to keep, and which prospects are worth holding, all in plain language. Read-only and free. - [Connect Fantrax to Claude](https://leagueloom.com/connect-fantrax-to-claude): League Loom is the layer between Fantrax and Claude. Claude is excellent at weighing tradeoffs across many variables at once, exactly what Fantrax leagues demand, but it cannot see your league on its own. League Loom hands Claude live rosters, player salaries and contract figures, and the waiver pool, so its reasoning runs on your actual roster instead of generic preseason rankings. The data Fantrax exposes, player salaries, contracts, and the waiver pool, is what no generic chatbot reads. With League Loom, Claude reads all of it. - [Connect Fantrax to ChatGPT](https://leagueloom.com/connect-fantrax-to-chatgpt): Yes, you can connect Fantrax to ChatGPT. League Loom is a connector that lets ChatGPT read your live Fantrax league, standings, matchups, rosters, waivers, and trades, so it answers from your actual data instead of guessing. It works across Fantrax formats like points, head-to-head categories, roto, and salary-cap dynasty leagues. It is read-only and free, so ChatGPT can see everything but never makes a move for you. - [Connect ESPN to Claude](https://leagueloom.com/connect-espn-to-claude): Yes, you can connect ESPN fantasy to Claude. League Loom is a custom connector that lets Claude read your live ESPN league, rosters, projections, matchups, and waiver wire, so you can ask start/sit and trade questions in plain English and get answers grounded in your actual team. Public ESPN leagues need nothing extra; private leagues use your own espn_s2 and SWID browser cookies, sealed inside your encrypted connection. It is read-only and free, so Claude reads your league but never makes a move. - [Connect ESPN to ChatGPT](https://leagueloom.com/connect-espn-to-chatgpt): Yes, you can connect ESPN to ChatGPT. League Loom is a custom connector that lets ChatGPT read your live ESPN fantasy league, including rosters, matchups, standings, and the full free-agent pool, so you can ask the waiver-wire and start-sit questions you would normally dig through the ESPN app for. Public ESPN leagues need nothing extra; private leagues use your own espn_s2 and SWID browser cookies, sealed in your encrypted connection. It is read-only and free, so ChatGPT can read everything but never makes a move for you. - [Connect Sleeper to Claude](https://leagueloom.com/connect-sleeper-to-claude): placeholder - [Connect Sleeper to ChatGPT](https://leagueloom.com/connect-sleeper-to-chatgpt): Yes, you can connect Sleeper to ChatGPT. League Loom is a custom connector that lets ChatGPT read your live Sleeper league, rosters, matchups, standings, and the waiver pool, then answer questions in plain English like best available adds for your team. Sleeper is public data, so all you give is your username, no password. It is fully read-only and free, so ChatGPT can read your league but never makes a single move. - [About](https://leagueloom.com/about): how League Loom is built, covering its architecture and the ESPN/Sleeper/Fantrax data APIs - [Release notes](https://leagueloom.com/changelog): a running, plain-English log of every capability as it ships ## Prompts - Weekly Newsletter: A skimmable weekly newsletter across all your leagues, covering record, matchup and score, roster alerts, and the top waiver add for each team. It's the fastest way to see everything that needs your attention before Sunday without opening a single app. - Waiver Wire Report: The top available free agents you could add this week, ranked across all your leagues, with which league each one is in. Useful before waivers process, so you can prioritize which claim matters most if you can only spend your FAAB or priority in one place. - Start/Sit & Lineup Check: Catch a bye-week starter, an injury, or a brutal matchup before games lock, across every team at once. Runs your whole slate through one check instead of clicking into each league to eyeball your bench. - Power Rankings: A fun, narrative power ranking of every team in one of your leagues. You pick the league and whether it's the whole season or just this week. Good for group-chat bragging rights or settling an argument about who's actually been the best team. - Trade & Roster Fixer: Spot positional surplus and need across your rosters and surface realistic trades or waiver moves to fix them. Helpful before a trade deadline, when you want a second read on where your team is actually thin versus where you just feel uneasy. - Draft Recap & Grades: A post-draft breakdown of each league: best value, biggest reach, and where your roster is thin. Run it right after your draft while the picks are fresh, or anytime later to remind yourself why you took who you took. - This Week's Matchups: A quick rundown of every matchup this week: who you're playing and how each game is going right now. One prompt covers every league instead of tab-switching between apps mid-slate to track your scores. ## How to connect - Claude: Open Settings → Connectors and choose Add custom connector. Paste https://leagueloom.com/mcp and click Connect. Leave Client ID & Secret blank. Finish the quick wizard to pick your teams, then ask away. - ChatGPT: Open Settings → Apps & Connectors. If you don't see custom connectors, turn on Developer mode under Advanced settings. Choose Create, name it League Loom, and paste https://leagueloom.com/mcp into the Connector URL field, then authorize. Turn League Loom on in a chat, finish the wizard, and ask away. (Custom connectors require a ChatGPT plan that supports them (Plus, Pro, Business, Enterprise, or Education).) - Other tools: Works with any MCP-compatible tool, including Cursor, Cline, Goose, Raycast, and more. Add a custom MCP server / connector and paste https://leagueloom.com/mcp. Leave Client ID & Secret blank. Authorize, finish the quick wizard to pick your teams, then ask away. (Any app that speaks the Model Context Protocol can connect, using the same URL shown above.) ## FAQ - **What is League Loom?** League Loom is a free, read-only AI connector for fantasy sports. It brings your ESPN, Sleeper, and Fantrax leagues into Claude, ChatGPT, and other MCP-compatible AI tools so you can ask about rosters, waivers, matchups, standings, drafts, and lineup risk in plain language. - **How do I connect Claude or ChatGPT to my fantasy league?** Add League Loom as a custom connector in your AI tool, paste the League Loom connector URL, and finish the setup wizard to pick your teams. The wizard discovers supported leagues, stores the selected teams in your own encrypted connection, and keeps the connector read-only. - **Do I need a developer account, API keys, or to host anything?** No. League Loom is hosted for you. You add one connector URL in Claude, ChatGPT, or another MCP-compatible tool, then authorize and pick your teams. There is no server to run and no platform API key to manage. - **Is League Loom free?** Yes. League Loom is free to use, with no paid tier. You can connect supported ESPN, Sleeper, and Fantrax leagues and ask read-only questions about them from your AI tool. - **How long does it take to connect my league?** Most users can connect in about two minutes. Sleeper is usually fastest because it only needs your username. ESPN private leagues need your own ESPN cookies, and Fantrax league discovery can use a read-only Secret ID. - **Can I use ChatGPT or Claude for fantasy football?** Yes. League Loom connects ChatGPT, Claude, and other AI tools to your real fantasy football leagues, so answers can use your actual rosters, matchups, standings, and available players instead of generic rankings or pasted snapshots. - **Do I have to paste my roster into ChatGPT?** No. ChatGPT and Claude cannot see your fantasy league by themselves, but League Loom gives them a live, read-only connection. You ask in plain language, and the AI can pull the current league data it needs. - **Does League Loom work outside Claude and ChatGPT?** Yes. League Loom uses the Model Context Protocol, so it can work with MCP-compatible tools such as Cursor, Cline, Goose, Raycast, and other clients that support custom MCP servers or connectors. - **What can I ask the AI about my fantasy teams?** Ask about start/sit decisions, waiver-wire adds, trade ideas, standings, draft results, weekly matchups, live scores, bye-week risk, injuries, roster holes, and how all of your teams are doing across every connected league. - **Can the AI see all of my fantasy leagues at once?** Yes. League Loom is built for multi-league managers. A single question can aggregate your teams across ESPN, Sleeper, and Fantrax, then summarize standings, matchups, roster risk, and waiver options in one answer. - **Should I trust the AI to make final roster decisions?** Use the AI as decision support, not an autopilot. League Loom gives the AI current league context, but you still choose the move. The connector is read-only, so the AI cannot submit lineups, trades, or waiver claims for you. - **Which fantasy platforms and sports does League Loom support?** League Loom supports ESPN, Sleeper, and Fantrax. ESPN supports NFL, NBA, MLB, NHL, and WNBA. Fantrax supports NFL, NBA, MLB, NHL, NCAAF, NCAAB, PGA, NASCAR, and EPL. Sleeper supports NFL and NBA. The capabilities page shows the exact live matrix. - **Can I connect Fantrax to ChatGPT or Claude?** Yes. League Loom connects Fantrax leagues to Claude, ChatGPT, and other MCP-compatible AI tools. Fantrax support includes rosters, standings, matchups for supported league formats, draft results, available players, and league discovery. - **Does League Loom support ESPN private leagues?** Yes. Public ESPN leagues need no cookies. Private ESPN leagues use your own espn_s2 and SWID cookies so League Loom can read the league on your behalf. If those cookies expire, reconnect through setup with fresh values. - **Do I need a Sleeper password?** No. Sleeper league data is public through Sleeper's read API, so League Loom only needs your Sleeper username to find your leagues and match your teams. - **Does League Loom support Yahoo fantasy leagues?** Not today. League Loom currently supports ESPN, Sleeper, and Fantrax. Check the capabilities page for the current provider matrix before connecting a league. - **Is my league data kept up to date?** League Loom reads provider data when the AI asks for it, so answers use the current roster, standings, matchup, draft, or player data available from that provider. It does not rely on an old roster pasted into a chat. - **What player data is available?** ESPN player data includes identity, availability, ownership, season fantasy points, weekly fantasy points, projections, stat categories, and crosswalk IDs. Fantrax player data is also live: identity, availability, ownership, season fantasy points, ADP, crosswalk IDs, and Sleeper injury enrichment where available. Sleeper direct player-data rows are not enabled yet. The capabilities page is the source of truth. - **Can League Loom find waiver-wire targets?** Yes. League Loom can list available players and waiver options where the provider supports it, then let the AI compare them against your roster needs and league context. - **Does League Loom work with custom or dynasty leagues?** Usually, if the provider exposes the league through its read data. League Loom reads the league settings, rosters, standings, draft data, and matchups that the platform returns, including many custom formats. - **Is League Loom safe? Can the AI change my lineup?** League Loom is read-only. It can read league data so the AI can answer questions, but it never sets lineups, adds or drops players, accepts trades, sends messages, or changes your fantasy accounts. - **Where are my credentials stored?** Credentials are sealed into your own encrypted connection token, not stored in a shared database. Each user connects their own leagues, and the server reads only the data needed to answer the requested tool call. - **What if ESPN says my league cannot be read?** ESPN private-league cookies rotate often. If ESPN returns an authorization error, refresh espn_s2 and SWID from your browser and reconnect at setup. Public ESPN leagues do not need those cookies. - **Can I remove a league or reconnect later?** Yes. Use the setup flow again to choose the leagues and teams you want available to the connector. Reconnecting creates an updated encrypted connection for your AI tool. - **What MCP tools can an AI call?** League Loom exposes read-only tools for provider catalogs, setup, league discovery, league info, rosters, standings, matchups, draft results, player search, available players, player data, team summaries, cross-league summaries, weekly digests, and setup management. - **Does League Loom include ready-made prompts?** Yes. The prompt library includes copyable prompts for weekly newsletters, waiver reports, lineup checks, trade ideas, draft recaps, power rankings, and matchup summaries. Claude users can also use built-in League Loom prompts from the connector menu. - **What connector URL should I paste into my AI tool?** Use https://leagueloom.com/mcp as the connector URL. Add it as a custom connector or MCP server, leave client credentials blank if the client asks for them, then finish authorization and setup.