MCP connectors by com.gumballtools

Convert times between IANA zones and detect skipped or ambiguous DST local times.

ISO 8601 week numbers: date to week, week to date, weeks-per-year.

Validate JSON, YAML, XML and CSV with exact line/column errors and silent-corruption warnings.

Explain a regex in plain English and detect catastrophic backtracking risk.

Convert JSON samples into TypeScript interfaces and Zod schemas, with inference caveats.

Convert colours between hex, RGB, HSL, OKLCH and CMYK, and compute harmonies.

Validates IBAN/ISBN/EAN/Luhn checksums and finds the one wrong digit

One MCP server exposing every tool in the Gumball portfolio.