What can I ask League Loom?

Ask about your teams across every league, league standings and matchups, rosters, draft results, available waiver and free-agent targets, and live player data. League Loom exposes one set of verb-based tools that an AI client like Claude or ChatGPT calls for you, so you just ask in plain language.

How does League Loom control write access?

All 18 tools available today retrieve or analyze league data. No write-action tools are registered, so League Loom cannot change a lineup, submit a waiver claim, add or drop a player, or make a trade. Any future write tool must also require your explicit confirmation.

Does League Loom support Fantrax, ESPN, and Sleeper?

Yes. League Loom supports all three: Fantrax, ESPN, and Sleeper. Each platform maps into one set of normalized shapes, so a single set of tools works across all of them. Connect multiple leagues from different platforms and see them in one place.

Which sports are supported?

ESPN and Fantrax cover NFL, NBA, MLB, and NHL (ESPN also covers WNBA, and Fantrax adds college football and basketball, PGA, NASCAR, and the EPL). Sleeper covers NFL and NBA.

Can League Loom read private leagues?

Yes, on ESPN and Fantrax. ESPN private leagues use your own espn_s2 and SWID cookies; Fantrax uses a read-only Secret ID for league discovery. Sleeper is fully public, so it needs no credentials.

What player data is available?

ESPN returns player identity, availability, ownership, season and weekly fantasy points, and projections. Fantrax returns identity, availability, ownership, season points, ADP, cross-platform ids, and Sleeper injury enrichment where available. Sleeper returns identity, injury status, availability, and cross-platform ids; weekly scoring comes from matchup box scores. The matrix shows exactly what each provider supports now.

Fantasy Platform Support & AI Tools

Fantrax

Available: Yes

Sports: MLB, NFL, NBA, NHL, NCAAF, NCAAB, PGA, NASCAR, EPL

Private leagues: Yes

Required credentials:

secret_id (only for list_user_leagues; may return an empty discovery list)
league_id or full Fantrax league URL (for league info, rosters, standings, draft)
sport (for rosters/draft name resolution & players)

ESPN

Available: Yes

Sports: NFL, NBA, MLB, NHL, WNBA

Private leagues: Yes

Required credentials:

espn_s2 + swid (only for PRIVATE leagues; public leagues need none)
season
sport

Sleeper

Available: Yes

Sports: NFL, NBA

Private leagues: No

Required credentials:

username (or user_id), only to discover leagues

Matrix

What each provider supports

A check means League Loom can read it on that provider today. Values come straight from the provider registry.

Capability	Fantrax	ESPN	Sleeper
Leagues & data
Discover leaguesList the leagues a user belongs to on the platform.	Yes	Yes	Yes
League infoRead a league's name, teams, and key settings.	Yes	Yes	Yes
RostersRead every team's roster with players, positions, and slots.	Yes	Yes	Yes
StandingsRead league standings: rank, record, and points.	Yes	Yes	Yes
MatchupsRead head to head matchups for a week.	Yes	Yes	Yes
Live scoreboardRead in progress, live scoring for the current week.	No	Yes	Yes
Draft resultsRead draft picks with round, team, player, and auction bid.	Yes	Yes	Yes
Player referenceSearch the platform's player list by name, position, and team.	Yes	Yes	Yes
Available playersList free agents and waiver players you can add in a league.	Yes	Yes	Yes
TransactionsRead recent league moves: adds, drops, waiver claims, and trades.	Yes	Yes	Yes
Trending playersShow platform wide most added and most dropped players.	No	No	Yes
Player data
Player metadataReturn player identity: name, position, and pro team.	Yes	Yes	Yes
AvailabilityReport whether a player is a free agent, on waivers, or rostered.	Yes	Yes	Yes
OwnershipReport the percent of leagues rostering a player.	Yes	Yes	No
Season pointsReturn season total actual fantasy points.	Yes	Yes	No
Weekly pointsReturn per-week actual fantasy points (via matchup box scores or player data).	No	Yes	Yes
ProjectionsReturn projected fantasy points.	No	Yes	No
Stat categoriesReturn raw stat categories such as yards or rebounds.	No	No	No
Crosswalk idsMap a player's ids across other platforms and data sources.	Yes	No	Yes
Schedule & playoffs
Season scheduleRead the full season head to head schedule.	Yes	Yes	Yes
Strength of scheduleOpponent based strength of schedule from standings.	Yes	Yes	Yes
Playoff pictureDeterministic seeds, clinch and elimination, and magic numbers.	No	Yes	Yes

Player data is live for all three providers today; what each one returns differs by platform (Sleeper has no projections or season points, for example), which is exactly what the matrix shows above.

Jump to the full tool reference below.

Tools

Your teams and leagues

Start here: your configured profile and a one-call view of your own teams across every league.

Tool	What it does	Gated by
Get my setup`fantasy_get_my_setup`	Show the leagues and teams configured in the connected profile, plus the steps to add or remove a league.	Always available
Get my team`fantasy_get_my_team`	One call for your team in one league: your standing, your current matchup, and your roster together.	`rosters`
Get all my teams`fantasy_get_my_teams`	The hub view. Aggregate your teams across every configured league and provider in one call.	Always available
Get my players`fantasy_get_my_players`	Your exposure map. Every player you roster across all your leagues, with who you are most invested in.	Always available
Weekly digest`fantasy_get_weekly_digest`	The newsletter. A weekly summary across every team: standing, matchup, roster alerts, and top waiver add.	Always available

Tools

League data

Read any league: info, rosters, standings, matchups, and draft results.

Tool	What it does	Gated by
Get league info`fantasy_get_league_info`	Read a league's name, teams, and key settings.	`leagueInfo`
Get rosters`fantasy_get_rosters`	Read every team's roster with player names, positions, and slot or status.	`rosters`
Get standings`fantasy_get_standings`	Read league standings: rank, record, and points for and against.	`standings`
Get matchups`fantasy_get_matchups`	Read head to head matchups, or the live scoreboard, for a week.	`matchups`
Get draft results`fantasy_get_draft`	Read draft picks with round, overall, team, player, and auction bid where applicable.	`draft`

Tools

Players and waivers

Browse waiver and free-agent targets, look up specific players, and follow platform trends.

Tool	What it does	Gated by
Get available players`fantasy_get_available_players`	Browse the free agents and waiver players you can add in a league, ranked best first. The pickup tool.	`availablePlayers`
Look up players`fantasy_get_player_data`	Look up specific named players, rostered or not, using the identity, availability, injury, scoring, projection, ownership, and cross-platform ID data each provider exposes.	`playerMetadata`

Tools

Setup and discovery

Discover what is supported, find a user's leagues, and manage your setup.

Tool	What it does	Gated by
List fantasy providers`fantasy_list_providers`	List every supported platform with its capabilities, sports, and required credentials. The best first call.	Always available
List a user's leagues`fantasy_list_user_leagues`	Discover the leagues a user belongs to on a provider.	`listUserLeagues`
Get league health`fantasy_get_league_health`	The commissioner report. Competitive balance, blowouts, and which teams look checked out for one league.	`standings`
Get schedule`fantasy_get_schedule`	Season schedule, strength of schedule, and a deterministic playoff picture: seeds, clinch and elimination, and magic numbers.	`schedule`
Get transactions`fantasy_get_transactions`	Read recent league moves: adds, drops, waiver claims, and trades, newest first.	`transactions`
Get trending players`fantasy_get_trending_players`	Show the most added and most dropped players across the platform (Sleeper).	`trendingPlayers`

Every tool listed here retrieves or analyzes league data. No write-action tools are registered, so League Loom cannot change your lineup or your account. Your AI only sees the tools your connected platforms can serve: a capability-gated tool appears only when at least one platform supports it.

What League Loom supports

Fantrax

ESPN

Sleeper

What each provider supports

Your teams and leagues

League data

Players and waivers

Setup and discovery