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Dice Notation Parser
x402
Dice Notation Parser is a paid API for AI agents from dice.openverbs.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-14).
Parses dice notation strings (e.g. '3d6+2', '4d6kh3', '2d20dl1') into structured terms describing dice count, sides, modifiers, and keep/drop rules
Price / call$0.002
Success—
StatusUnknown
How this service works
Parse dice notation such as "3d6+2", "4d6kh3" (keep highest 3) or "2d20dl1" (drop lowest 1) into structured terms. Malformed notation is a clean 400.
Output
A structured breakdown of the dice notation including number of dice, die face count (e.g. d6, d20, d%), arithmetic modifiers (+/-), and any keep-highest or drop-lowest rules. Malformed input returns a clean 400 error.
Example use cases
RPG character stat generator
“I'm building a character creator and need to parse '4d6kh3' into its components so I can validate it before rolling — can you break that notation down into structured terms?”
Tabletop game rule validator
“My game engine needs to verify that '2d20dl1' is a valid dice expression and understand its drop-lowest rule — can you parse that notation into structured data?”
Homebrew dice expression debugger
“A player submitted '3d6+2' as their attack roll formula — can you parse that notation and show me the dice count, die type, and flat modifier separately?”
Technical details
Endpoint
POSThttps://dice.openverbs.com/v1/parseWhen to prefer
Use this endpoint when you need to validate or structurally decompose a dice notation string without actually rolling it. Ideal for game engines that need to parse user-submitted expressions before executing them, or for building editors and validators. If you also need the probability distribution or an actual roll result, use the sibling endpoints on dice.openverbs.com instead.
Side effects
- Malformed or unrecognized dice notation returns HTTP 400 with a clean error
- Empty notation string rejected by schema (minLength:1)
- Unsupported notation syntax (e.g. non-standard extensions) may yield 400
- Network timeout or service unavailability
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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