MCP For Claude Marketplace
Gacha Pity Calculator

Gacha Pity Calculator MCP Connector for Claude

A+

Calculate exact gacha probabilities, soft pity escalation, and resource costs.

3 tools Official Updated Oct 1, 2026 Official Vinkius Partner
More Details Connect to Claude

This MCP server provides deterministic probability modeling for gacha loot box systems. It helps users navigate complex pity mechanics common in mobile games. Use calculate_single_pull_odds to find the immediate chance of success, calculate_cumulative_projections to estimate total currency costs and success rates over multiple pulls, or check_pity_status to determine if a featured character is guaranteed via the 50/50 mechanic.

gachaprobabilitypitygaming-toolssimulation

3 tools expose this connector's capabilities to your AI agent.

calculate_single_pull_odds

Determines the specific probability of success for the very next pull based on the current state of the pity counter

check_pity_status

Evaluates the user's current standing regarding "guaranteed" featured items (the 50/50 mechanic)

calculate_cumulative_projections

Projects the likelihood of success and resource requirements over a user-defined number of future pulls

See how to talk to your AI agent using Gacha Pity Calculator.

What is my chance of getting a 5-star on my next pull if I am at 74 pity, the base rate is 0.6%, soft pity starts at 74, hard pity is 90, and the increment is 6%?

Your probability of success on the next pull is 6.6%.

How much will it cost to do 50 more pulls if each pull costs 160 gems, with a base rate of 0.6%, soft pity at 74, hard pity at 90, and increment of 6%? I am currently at 0 pity.

The total cost for 50 pulls is 8,000 gems, and your cumulative probability of success is approximately 32.8%.

Am I guaranteed the featured character next time I hit a 5-star?

Yes, you are currently in a Guaranteed state.

You can use the `calculate_single_pull_odds` tool. Provide your current pity counter, the base rate, and the soft/hard pity thresholds to get the exact probability.

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