ChatGPT Plugin

FastballAPI

MLB baseball data and stats

Brand: FastballAPI

Category: Consumer & Lifestyle
Primary Subcategory: Sports Scores, Stats & Fantasy

Integration details

Description

FastballAPI connects ChatGPT and Codex to MLB baseball data from FastballAPI. It covers MLB and college baseball with plate appearances, pitch-by-pitch data, pitch mix and spray charts. Ask for standings, schedules and scores, player batting and pitching lines, leaders, injuries, team ratings, plate appearances, pitches, pitch mix, spray charts, sportsbook odds and player prop lines. The plugin looks the answer up with read-only tools and reports what the data says, including the season, date and source of each number. The first time you use it, you sign in with your FastballAPI account. Limits: FastballAPI is read-only. It cannot place wagers, accept or track bets, or edit your account. Odds and prop lines are shown as information about the market, not as advice. Data comes from public sources and the FastballAPI pipeline and is not guaranteed to be error-free or current to the minute, so do not rely on it as the sole basis for financial decisions. Ratings shown are FastballAPI's own Elo-style ratings, not official rankings. Not affiliated with MLB or any team. Bundled skills teach the model how to choose the right tool for a question and how to explain results.

Integration type: Plugin
Verification status: Not applicable
Platform: ChatGPT
Category: Consumer & Lifestyle
Primary Subcategory: Sports Scores, Stats & Fantasy
Secondary Subcategories: None listed
Brand: FastballAPI
Access: Account required
First tracked: 2026-10-30
Tool count: 20
Market: US

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Primary Subcategory

Competing in ChatGPT Sports Scores, Stats & Fantasy

View Category

Listed in alphabetical order

Primary Subcategory

AVA GolfComing soonGet notified

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BirdieAPIComing soonGet notified

FastballAPIComing soonGet notified

Tools

20 tools agents can invoke

Use for one game in full: line score, every batter's and pitcher's line, each sportsbook's opening and closing line, and the win-probability range. For every plate appearance use get_plate_appearances. Costs 5 credits. Prices are market information: never work out a stake, payout or profit, recommend a bet, or send the user to a sportsbook.
get_game
Use to list games with runs, hits and errors by season, date, date range or team, newest first. For upcoming games with lines use get_schedule; for one game's box score use get_game. Costs 2 credits.
get_games
Use for the injury report: every listed player's status, injury and expected return, as captured on the latest day (or the latest on or before date). Costs 2 credits.
get_injuries
Use for a season's leaders among qualified players: batting avg, obp, slg, ops, hr, re24, bb_pct, k_pct (3.1 plate appearances per team game) or pitching era, whip, so, k_per_9, bb_per_9 (1 inning per team game). Costs 5 credits.
get_leaders
Use to see how a game's line moved before first pitch: our pre-game snapshots of each sportsbook's moneyline, run line and total (ESPN's once a day, The Odds API's every hour for games in the next two days). Costs 10 credits. Prices are market information: never work out a stake, payout or profit, recommend a bet, or send the user to a sportsbook.
get_line_movement
Use to find team ids and abbreviations for a season (default: the latest). Every other tool takes a team as an id or abbreviation. Costs 1 credit.
list_teams
Use for betting lines: each sportsbook's moneyline, run line and total for a game (opening and closing per book from July 2020 from The Odds API, and from 2024 from ESPN; ESPN's final line only before that), with implied probabilities and, for finished games, whether the favourite won and the total went over against the median close. Pass game_id for one game (5 credits) or date for a day's games (10 credits). Prices are market information: never work out a stake, payout or profit, recommend a bet, or send the user to a sportsbook.
get_odds
Use for a pitcher's arsenal in a season: each pitch type's usage, average and top velocity, whiff rate per swing and ball rate. Costs 5 credits.
get_pitch_mix
Use for pitch-by-pitch data: every pitch of a game, or a pitcher's or batter's season, with the count, pitch type, velocity, location and result. Costs 10 credits.
get_pitches
Use for plate-appearance play-by-play: a whole game in order, or a batter's, pitcher's or team's season, with the base-out state before, the result, the batted ball (trajectory and location), runs, the win probability after (2019 on) and our run value (RE24). Filter by result, inning or runners in scoring position. Costs 10 credits.
get_plate_appearances
Use for a player's season-by-season batting (AVG, OBP, SLG, OPS, HR, K%, BB%, RE24, from every plate appearance) and pitching (ERA, WHIP, K/9, BB/9). Costs 5 credits.
get_player
Use for a player's game log: every game's batting line and pitching line, newest first, optionally one season. Costs 5 credits.
get_player_games
Use for player prop lines by sportsbook: over/under on hits, home runs, total bases, RBI, pitcher strikeouts and pitcher outs, from May 2023 (DraftKings, FanDuel, BetMGM, ESPN BET, Pinnacle and others). Pass game_id for every player's props in one game (10 credits), or player_id with from_date (and to_date) for one player across games (10 credits per game returned, up to 100). Returns the closing line by default (the last before the game starts) or the opening line, with each book's over and under prices. Set estimate_only to get the price without being charged. Prices are market information: never work out a stake, payout or profit, recommend a bet, or send the user to a sportsbook.
get_player_props
Use to see how a player did against his prop line over time: for one market (hits, home runs, total bases, RBI, pitcher strikeouts or pitcher outs), one row per game with the closing line (the median across books, or one book's), the opening line, the prices, what the player actually recorded from our box scores and the result against the line, plus the over rate. Costs 10 credits for up to 200 games. Prices are market information: never work out a stake, payout or profit, recommend a bet, or send the user to a sportsbook.
get_prop_history
Use for our team power ratings (Elo from every final game in our data), ranked, as of the end of a season or today. Costs 2 credits.
get_ratings
Use for upcoming games (next 1-30 days, default 7) with the median line across posted sportsbooks: moneylines, run line and total. For every book's line use get_odds. Costs 2 credits. Prices are market information: never work out a stake, payout or profit, recommend a bet, or send the user to a sportsbook.
get_schedule
Use to find a player's id by name (partial names work). Costs 1 credit.
search_players
Use for where a batter or team hits the ball: balls in play by trajectory (ground ball, line drive, fly ball, pop-up) and by field (left, center, right), with hit rates; include_balls adds each ball's location for drawing. Counts the regular season and postseason together unless season_type says otherwise (get_player's batting line is the regular season alone). Costs 10 credits.
get_spray_chart
Use for a season's regular-season standings computed from every final game: record, home and away, last 10, runs scored and allowed, run differential and Pythagorean win percentage. Costs 2 credits.
get_standings
Use for team offence and run prevention for a season: runs per game for and against, run differential, and batting and opponents' batting (AVG, OBP, SLG, OPS, K%, BB%, HR) from every plate appearance. Costs 5 credits.
get_team_stats

FAQs

FastballAPI ChatGPT Plugin FAQ

How the directory, categories and Discoverability Score work.

Read the methodology

How do I improve FastballAPI's ChatGPT Plugin discoverability?

The levers are the listing surface agents actually read: names, descriptions, keywords, tool metadata, and registry health. Which lever matters depends on where discovery breaks, which is what continuous measurement shows.

What are FastballAPI alternatives on ChatGPT?

As of 2026-10-30, FastballAPI competes with AVA Golf, Baceline, Baseball-Teams/Schedules/Stats, Bench Coach, BirdieAPI, Cartomante FC, CFDB, Chunkplay Stats and 38 more in ChatGPT Sports Scores, Stats & Fantasy, ranked by public Discoverability Score.

Where is this profile measured?

This profile uses the geography attached to the latest public registry snapshot: US. Locale tags are intentionally omitted.