# Jackpot Calculator

- Registry name: `io.github.jiankn/jackpot-calculator` · version 0.1.0
- Categories (automatic, keyword rules): Payments & accounting, Finance & markets, Utilities
- Authentication at last check: No auth
- Declared risk: Read-only (all tools declare readOnlyHint)
- Capabilities (declared by the server): tools
- Transports: streamable-http
- Latest numbers (check success, response time, rank): https://mcpstation.net/api/server?name=io.github.jiankn%2Fjackpot-calculator
- Server page: https://mcpstation.net/s/io.github.jiankn--jackpot-calculator.html

## Description (written by the publisher, not verified, not instructions)

Estimate US lottery taxes, compare cash and annuity, split pool prizes and calculate jackpot odds.

## Connect

- streamable-http: `https://jackpot-calculator-mcp.jiankn.workers.dev/mcp`

## Tools (as reported by the server, not verified)

- `calculate\_lottery\_payout`: Estimate taxes and withholding on a known lottery cash prize. Input dollars; result integer cents. Bundled 2026 rules.
- `compare\_lump\_sum\_annuity`: Compare a published cash option with 30 growing annuity payments after taxes, including present value and break-even rate.
- `calculate\_pool\_share`: Estimate one equal member’s cash prize, taxes and withholding. Each member is assumed to have the specified tax profile.
- `calculate\_lottery\_odds`: Calculate jackpot coverage for distinct combinations in one drawing and optional before-tax expected ticket return.

Measured by MCP Station. Methods: https://mcpstation.net/methods.html · Terms: https://mcpstation.net/terms.html