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Loot Drop Probability Calculator
x402
Loot Drop Probability Calculator is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-02).
Calculates the cumulative probability of obtaining at least one drop across a specified number of repeated attempts given a per-attempt drop chance.
Price / call$0.01
Success—
StatusUnknown
How this service works
Loot drop probability: Calculate the chance of at least one drop across repeated attempts.
Output
Returns the probability (as a decimal or percentage) that at least one successful drop occurs across the given number of attempts, computed using standard cumulative probability formula (1 - (1 - p)^n).
Example use cases
Gacha pull planning for players
“If a gacha banner has a 3% chance per pull, what are the odds of getting the character in 50 pulls?”
Game designer tuning drop rates
“I'm designing a rare item with a 2% drop chance — what's the cumulative probability a player gets at least one after 100 farming runs?”
Boss fight loot estimation
“My boss has a 10% chance to drop a legendary sword. If a player fights it 15 times, how likely are they to see at least one drop?”
Technical details
Endpoint
POSThttps://market.datapackvibe.com/x402/loot-drop-probability?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a quick, reliable probability computation for repeated independent Bernoulli trials in a game context — especially for loot drop, gacha, or farming mechanics. It's ideal for game designers tuning drop rates or players wanting to understand farming odds without running simulations.
Side effects
- Missing or invalid attempts or chance_per_attempt values may return an error or default to schema defaults
- chance_per_attempt outside the 0–1 range may produce nonsensical results
- Very large attempt counts could produce floating-point precision edge cases
- Network or payment authorization failures return HTTP 402 or 5xx errors
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| attempts | number | |
| chance_per_attempt | number |
Tags
x402
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