Project Gumball MCP Tools

• cron_explain

  cron explain

• cron_build

  cron build

• cron_next_runs

  cron next runs

• json_to_types

  json to types

• regex_explain

  regex explain

• timezone_convert

  timezone convert

• color_analyse

  color analyse

• vocab_draw

  vocab draw

• vocab_check

  vocab check

• body_metrics

  body metrics

• due_date

  due date

• round_cash_total

  round cash total

• rounding_impact

  rounding impact

• price_band

  price band

• offside

  offside

• offside_rule_contrast

  offside rule contrast

• check_digit_run Read-only

  check digit run

• amortize_schedule

  amortize schedule

• iso_week_run

  iso week run

• validate_json

  validate json

• validate_yaml

  validate yaml

• validate_xml

  validate xml

• validate_csv

  validate csv

• validate_auto

  validate auto

• equation_steps_run

  equation steps run

This list was read from the server itself, by connecting to it and calling tools/list on 24 September 2026. It is what the server actually exposes, not what its listing claims.

Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. The registry stores tool names only; connect the server for its live schemas.