Historical Baseball MCP server

@pipeworx/historical-baseball

Historical MLB statistics: career batting/pitching lines, team-season records, per-game box-score summaries, and season leaderboards, back to

Stats API; this pack is the historical record underneath it.

1. Fleet #2976 — the live mlb-stats pack only covers the current MLB

Part of Pipeworx — an MCP gateway connecting AI agents to 1786+ live data sources. This is an independent, unofficial integration — not affiliated with, endorsed by, or published by the upstream provider.

Tools

stats for one player's whole career. Pass a name ("Babe Ruth") or an exact Lahman playerid ("ruthba01"). An ambiguous name returns a candidate list (with playerid) instead of guessing.

• baseballplayerhistory(player) — year-by-year batting and/or pitching

year: wins/losses, division/league/World Series result, team batting and pitching totals, park and attendance. Pass a code ("NYA") or common name ("Yankees").

• baseballteamseason(team, year) — one team's full-season record for one

one team played on one date (an array, so doubleheaders return two games): final score, winning/losing/save pitcher, managers, and each side's AB/H/2B/3B/HR/RBI/BB/SO/errors. Covers regular season plus All-Star, Division Series, League Championship Series, Wild Card and World Series games (game_type: R/A/D/L/C/W).

• baseballgamelog(date, team) — box-score-level summary of the game(s)

for one batting or pitching stat in one season. Batting: HR, AVG, RBI, R, H, SB, BB, SO, 2B, 3B. Pitching: W, ERA, SOP, SV, L, WHIP. AVG/ERA/ WHIP apply a simple qualifying floor (AB>=100 / IPouts>=100), not** MLB's official plate-appearance/innings qualifying rule.

• baseballseasonleaders(year, stat, league?, limit?) — top-N leaderboard

season year, and when it was last refreshed. Call this if a date/year you expect to exist comes back not-found.

• baseball_coverage() — the loaded Retrosheet date range, latest Lahman

Team codes changed for several relocated/renamed franchises (e.g. the Athletics' Retrosheet code changed for the 2025 move to Sacramento); both the old and new codes exist in the data where applicable, and a handful of common names and well-known defunct franchises resolve automatically (see TEAM_ALIASES in src/store.ts). An unrecognized team/year/date/stat is refused with a clear error, never an empty success.

Auth

Keyless. The tools answer only through the Pipeworx gateway, which holds the data; a standalone npm install has no data to read, and every tool throws a clear "not bound in this runtime" error there instead of returning an empty list.

Data sources

Free with a required attribution notice, reproduced verbatim in every baseballgamelog response:

• Retrosheet (retrosheet.org/gamelogs) — one row per game, 1871-2025.

The information used here was obtained free of charge from and is

copyrighted by Retrosheet. Interested parties may contact Retrosheet at

"www.retrosheet.org".

batting/pitching/team tables and player bios, 1871-2025 (now including Negro Leagues statistics licensed from Seamheads.com), maintained by SABR from Sean Lahman's original donation. Licensed CC BY-SA 3.0 Unported (Creative Commons Attribution-ShareAlike):

• SABR Lahman Baseball Database (sabr.org/lahman-database) — season

This database is copyright 1996-2025 by SABR, via generous donation from

Sean Lahman. This work is licensed under a Creative Commons

Attribution-ShareAlike 3.0 Unported License. For details see:

http://creativecommons.org/licenses/by-sa/3.0/

Shortened. The full README is on GitHub.