Use Prefix Cache Savings Calculator with your AI.
Connect your account once and let the AI you already use work with it, without building another integration. Calculate exact token savings from LLM prefix caching.
Developed, maintained, and hosted by Vinkius.
MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED
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Works with modern AI clients that support MCP, including ChatGPT, Claude, Cursor, and more.
Complete set · 3 capabilities
The complete Prefix Cache Savings Calculator capability set.
These are the exact actions your AI can choose when you ask it to work with Prefix Cache Savings Calculator.
01-03
3 capabilities in this set.
Part of 3 available through Prefix Cache Savings Calculator.
- 01
Analyze prefix savings
Calculates the exact cache savings resulting from a shared prefix across a provided set of prompts
- 02
Find longest common substring
Identifies the specific character sequence shared by the prompts to validate the prefix
- 03
Get cache efficiency metrics
Provides a high-level summary of whether a set of prompts is a good candidate for prefix caching
Observed, not estimated
817ms average. Fast in production.
Prefix Cache Savings Calculator is checked daily against the live service.
- Fastest day
- 610ms
- Slowest day
- 1024ms
- 14-day trend
- Slowing+32%
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 Prefix Cache Savings Calculator, so you can see the experience inside your AI.
It does not authenticate your account with Prefix Cache Savings Calculator. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.
Prefix Cache Savings Calculator Connector
You're all set. Choose your MCP client and follow the setup instructions.
https://edge.vinkius.com/vk_preview_X5laquUdzNLwu1jfwmCWYgT4ANJtiqAUYca2plBj/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 — Prefix Cache Savings Calculator capabilities are ready to use.
{
"mcpServers": {
"prefix-cache-savings-calculator-mcp": {
"url": "https://edge.vinkius.com/vk_preview_X5laquUdzNLwu1jfwmCWYgT4ANJtiqAUYca2plBj/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 Prefix Cache Savings Calculator owners ask.
- 01
How does this capability calculate token savings?
The capability identifies the common prefix shared by all prompts and estimates tokens using a 4-character-per-token ratio. It then calculates savings by multiplying the prefix tokens by the number of additional prompts that benefit from the cache.
- 02
What is the difference between the analysis capabilities?
You can use analyze_prefix_savings for a full breakdown of tokens, including the exact common prefix and percentage. Use get_cache_efficiency_metrics if you just want a quick recommendation based on a specific efficiency threshold.
- 03
Can I use this with Claude Desktop?
Yes, this MCP server can be connected to Claude Desktop, Cursor, VS Code, Windsurf, and any other MCP-compatible client via Vinkius Edge.
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