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AgentUtility Dice Roll
x402
AgentUtility Dice Roll is a paid API for AI agents from x402.agentutility.ai, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-13).
Evaluates standard dice notation expressions (XdY, modifiers, keep-highest/lowest) and returns detailed per-die results, totals, and optional reproducible seeded rolls.
Price / call$0.005
Success—
StatusUnknown
How this service works
Rolls dice from standard dice notation for tabletop RPGs. Evaluates XdY, flat modifiers (+/-), and keep-highest / keep-lowest (4d6kh3 for stat rolls, 2d20kh1 / 2d20kl1 for advantage/disadvantage). Returns each individual die, which were kept vs dropped, the per-roll total, and the grand total; roll the whole expression up to 100 times with 'rolls'. Pass 'seed' for reproducible output. Use it as a dice roller API, dice notation evaluator, or tabletop random roll engine.
Output
Returns a structured JSON object containing the parsed notation, an array of roll results (each with individual dice values, kept dice, dropped dice, modifier, and per-roll total), the grand total across all rolls, and the possible min/max range of the expression.
Example use cases
D&D character stat generation
“Roll 4d6kh3 six times so I can generate all six ability scores for my new D&D character — show me which dice were kept and dropped for each roll.”
Advantage and disadvantage rolls
“I need to make an attack roll with advantage — roll 2d20kh1 and also roll 2d20kl1 for a disadvantage check, so I can see both outcomes.”
Reproducible session dice rolls
“Roll 3d6+2 ten times using seed 42 so our whole group gets the same results for tonight's encounter — I want the total for each roll.”
Technical details
Endpoint
POSThttps://x402.agentutility.ai/dice-rollWhen to prefer
Choose this endpoint when you need server-side, auditable dice rolling with full transparency into individual die results, keep/drop mechanics, and optional seeded reproducibility — especially for tabletop RPG use cases requiring standard dice notation like XdY, kh/kl modifiers, and flat +/- modifiers. Prefer this over client-side random number generation when reproducibility or auditability matters.
Side effects
- Invalid dice notation string returns a parse error
- rolls count outside 1-100 range returns a validation error
- Malformed request body returns HTTP 400
- Non-integer seed values may cause unexpected behavior
- Network timeout on rare occasions
Output
Schema · Response
{
"type": "json",
"example": {
"range": {
"max": 18,
"min": 3
},
"rolls": [
{
"dice": [
4,
3,
6,
5
],
"kept": [
4,
6,
5
],
"total": 15,
"dropped": [
3
],
"modifier": 0
}
],
"parsed": {
"keep": {
"n": 3,
"mode": "h"
},
"count": 4,
"sides": 6,
"modifier": 0
},
"notation": "4d6kh3",
"grand_total": 15
}
}Tags
x402
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