Roll dice

$0.01 per call · failed calls are never charged · no account or subscription: pay per call with a card key or USDC

Roll dice in standard notation such as 2d6+3 or 1d20, up to 100 dice of up to 1000 sides, with a cryptographic random source. Returns every roll, the modifier and the total. Use for tabletop games and simulations.

Run it free (25 free calls) Buy credits by card (from $1) Example result (JSON)

Try it with your own inputs

Dice notation, e.g. 2d6+3 (default 1d6)

Uses one of your 25 free calls. Nothing is charged, and a call that fails is not counted.

Inputs

NameTypeDescription
rollstringDice notation, e.g. 2d6+3 (default 1d6)

Request

Over HTTP, with a card key from /credits:

curl -H "Authorization: Bearer adt_…" "https://tools.funwords.eu/dice?roll=2d6%2B3"

Or one of your 25 free calls, no key:

curl "https://tools.funwords.eu/dice?roll=2d6%2B3&trial=1"

Without a key, the same URL answers 402 Payment Required with x402 and MPP terms, so an agent with a wallet pays per call in USDC (Base, Polygon, Arbitrum or Solana over x402; Base or Tempo over MPP) and retries.

Example result

{
  "roll": "2d6+3",
  "rolls": [
    4,
    6
  ],
  "modifier": 3,
  "total": 13
}

From an AI agent (MCP)

Add the MCP server to Claude, Cursor or any MCP client. This tool is dice, and the first 25 successful calls are free:

https://tools.funwords.eu/mcp

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