Use Gacha Pity Calculator with your AI.
Connect your account once and let the AI you already use work with it, without building another integration. Calculate exact gacha probabilities, soft pity escalation, and resource costs.
Developed, maintained, and hosted by Vinkius.
MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED
Waiting for input…
Works with modern AI clients that support MCP, including ChatGPT, Claude, Cursor, and more.
Complete set · 3 capabilities
The complete Gacha Pity Calculator capability set.
These are the exact actions your AI can choose when you ask it to work with Gacha Pity Calculator.
01-03
3 capabilities in this set.
Part of 3 available through Gacha Pity Calculator.
- 01
Calculate single pull odds
Determines the specific probability of success for the very next pull based on the current state of the pity counter
- 02
Check pity status
Evaluates the user's current standing regarding "guaranteed" featured items (the 50/50 mechanic)
- 03
Calculate cumulative projections
Projects the likelihood of success and resource requirements over a user-defined number of future pulls
Observed, not estimated
828ms average. Fast in production.
Gacha Pity Calculator is checked daily against the live service.
- Fastest day
- 649ms
- Slowest day
- 1012ms
- 14-day trend
- Slowing+43%
Connect your client
One URL. Every client.
Activate the Connector, copy your link, and paste it into the client you already use. 3 capabilities arrive ready to run.
Preview access · not provider authentication
The vk_preview_* token belongs to Vinkius preview infrastructure. It lets Claude discover and display the capabilities of Gacha Pity Calculator, so you can see the experience inside your AI.
It does not authenticate your account with Gacha Pity Calculator. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.
Gacha Pity Calculator Connector
You're all set. Choose your MCP client and follow the setup instructions.
https://edge.vinkius.com/vk_preview_uLJX7gWPv3Et8Ga1ts5TVs0s4RbBTW27WWPFAjWf/mcpClaude Desktop
Follow the steps below to connect in seconds.
- 1In Claude Desktop, open Settings → Connectors.
- 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
- 3Click Add and start a new chat — Gacha Pity Calculator capabilities are ready to use.
{
"mcpServers": {
"gacha-pity-calculator-mcp": {
"url": "https://edge.vinkius.com/vk_preview_uLJX7gWPv3Et8Ga1ts5TVs0s4RbBTW27WWPFAjWf/mcp"
}
}
}
Claude
ChatGPT
Cursor
VS Code
Windsurf
Claude Code
JetBrains
Cline
Step-by-step instructions for each client are in the guide. How to connect
FAQ
Questions Gacha Pity Calculator owners ask.
- 01
How do I calculate my next pull chance?
You can use the calculate_single_pull_odds capability. Provide your current pity counter, the base rate, and the soft/hard pity thresholds to get the exact probability.
- 02
Can I estimate how much currency I need for a banner?
Yes, use calculate_cumulative_projections to see the total cost and the cumulative probability of success for a specific number of pulls.
- 03
What is the 50/50 mechanic?
The 50/50 mechanic determines if your next high-rarity pull is the featured character. You can use check_pity_status to see if you are currently in a 'Guaranteed' state.
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