MCP server exposing 3 tools for dice-roller.
This URL is a JSON-RPC 2.0 endpoint over HTTP. Issue POST requests with a JSON-RPC body. Browsers and search crawlers land here on GET.
POST https://gateway.pipeworx.io/dice-roller/mcp
Content-Type: application/json
{"jsonrpc":"2.0","id":1,"method":"tools/list"}roll_dice — Pipeworx dice engine: roll tabletop dice notation with real randomness — NdS terms joined by + or - (2d6+1d4+3, 1d20-2), keep/drop (4d6kh3, 2d20kl1 for disadvantage, 4d6dl1), exploding dice (3d6!), fudge/Fate dice (4dF) and percentile (d% or d100). Up to 1,000 dice and 10,000 sides. Returns every die rolled, which dice were kept, per-term subtotals, the total and a readable breakdown; `times` repeats the roll (up to 100) and adds min/max/mean. Omit `seed` for a fresh roll; pass the returned `seed` to reproduce it exactly. The outcome is random — the calling agent decides what it means.flip_coins — Pipeworx dice engine: flip fair coins with real randomness — up to 1,000 per call. Returns the sequence (H/T), heads and tails counts, and the longest run. Omit `seed` for fresh flips; pass the returned `seed` to reproduce them exactly. The outcome is random — the calling agent decides what it means.dice_odds — Pipeworx dice engine: the probability distribution of a dice notation (same grammar as roll_dice: 2d6+3, 4d6kh3, 2d20kl1, 4dF, 3d6!) — min, max, mean, standard deviation, mode, the probability of every total and, given `target`, the chance the total is >=, >, <=, < or == that target (e.g. "what are the odds of 15 or more on 3d6"). Exact by enumeration where the outcomes can be enumerated (plain sums, and keep/drop pools up to 1,000,000 outcomes); otherwise a 100,000-sample Monte Carlo estimate labelled method:"monte_carlo" (exploding dice always use it). `seed` makes a Monte Carlo estimate reproducible.Code samples (curl / TypeScript / one-click client install), schemas, and the live playground are on the pack page:
https://pipeworx.io/packs/dice-roller/
Pipeworx is an open MCP gateway connecting AI agents to live data. pipeworx.io