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Pro athlete tax calculators for MLB, NBA, NFL and NHL. Requires a Jock Taxes API key.
Remote server: your requests and data go to jocktaxes.com. Claude Code: claude mcp add --transport http jock-taxes-developer-mcp https://jocktaxes.com/mcp · Claude app: Settings → Connectors → Add custom connector.
The tools this server listed when we connected to it, in its own words.
calculate_nhl_tax — Calculate professional-athlete tax for one NHL season with the Jock Taxes engine. Ask the user for a missing team or salary. Do not invent tequivalent_nhl_salary — Find the gross salary on a comparison NHL team that matches the after-tax income of a known salary on a baseline team. Ask for the baseline player_movement_nhl — Compare after-tax income when a NHL player moves from one team to another at the same gross pay. Ask for the origin team, destination team, calculate_nfl_tax — Calculate professional-athlete tax for one NFL season with the Jock Taxes engine. Ask the user for a missing team or salary. Do not invent tequivalent_nfl_salary — Find the gross salary on a comparison NFL team that matches the after-tax income of a known salary on a baseline team. Ask for the baseline player_movement_nfl — Compare after-tax income when a NFL player moves from one team to another at the same gross pay. Ask for the origin team, destination team, calculate_mlb_tax — Calculate professional-athlete tax for one MLB season with the Jock Taxes engine. Ask the user for a missing team or salary. Do not invent tequivalent_mlb_salary — Find the gross salary on a comparison MLB team that matches the after-tax income of a known salary on a baseline team. Ask for the baseline player_movement_mlb — Compare after-tax income when a MLB player moves from one team to another at the same gross pay. Ask for the origin team, destination team, calculate_nba_tax — Calculate professional-athlete tax for one NBA season with the Jock Taxes engine. Ask the user for a missing team or salary. Do not invent tequivalent_nba_salary — Find the gross salary on a comparison NBA team that matches the after-tax income of a known salary on a baseline team. Ask for the baseline player_movement_nba — Compare after-tax income when a NBA player moves from one team to another at the same gross pay. Ask for the origin team, destination team, list_team_players — List player ids and pay for one team and season from the salary tables. Requires league, team, and season_id. Match the user's name against list_tax_calculator_inputs — List leagues, seasons, filing statuses, and team codes accepted by the NHL, NFL, MLB, and NBA tax calculators. Does not use request quota.Not tested by KitScout yet. When our harness runs it, pros, cons and the tasks we tried appear here, with the date and evidence.