Use Math.js with your AI.
Connect your account once and let the AI you already use work with it, without building another integration. Stop LLMs from hallucinating math. Evaluate complex mathematical expressions and handle exact float rounding deterministically.
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 · 2 capabilities
The complete Math.js capability set.
These are the exact actions your AI can choose when you ask it to work with Math.js.
01-02
2 capabilities in this set.
Part of 2 available through Math.js.
- 01
Round value
Pass the expression as a string (e.g. "2^8 + sqrt(144)") and the engine computes the exact result using mathjs. Rounds a float value to a specific number of decimal places
- 02
Calculate expression
Safely evaluates complex mathematical expressions (e.g. "1.2 * (2 + 4.5)") deterministically using mathjs
Observed, not estimated
7186ms average. Slow in production.
Math.js is checked daily against the live service.
- Fastest day
- 6731ms
- Slowest day
- 8385ms
- 14-day trend
- Stable+4%
Connect your client
One URL. Every client.
Activate the Connector, copy your link, and paste it into the client you already use. 2 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 Math.js, so you can see the experience inside your AI.
It does not authenticate your account with Math.js. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.
Math.js Connector
You're all set. Choose your MCP client and follow the setup instructions.
https://edge.vinkius.com/vk_preview_9XR5wuizVoLpOQlm7Fd6xdylcsHMWbeUTe8YetYM/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 — Math.js capabilities are ready to use.
{
"mcpServers": {
"math-evaluation-engine-mcp": {
"url": "https://edge.vinkius.com/vk_preview_9XR5wuizVoLpOQlm7Fd6xdylcsHMWbeUTe8YetYM/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 Math.js owners ask.
- 01
Why use this instead of the LLM?
Because LLMs are probabilistic text generators, not calculators.
- 02
Does it handle floating point bugs?
Yes, mathjs evaluates expressions safely without the JS 0.300004 bug.
- 03
Can it round dynamically?
Yes, you specify the exact decimal precision required.
Explore
More in Developer Tools
Confusion Matrix Engine AI Connector
Deterministically calculate True Positives, FP, Precision, Recall, F1-Score, and Accuracy local. Stop LLM hall
ViewBoolean Truth Table Generator AI Connector
Generates exact truth tables and analyzes logical properties of boolean expressions.
Viewjmespath-query-executor AI Connector
Deterministic JSON querying using simplified JMESPath syntax.
ViewDot-Notation Object Flattener AI Connector
Convert deeply nested JSON objects into flat structures using dot-separated keys.
View
Suggestions
Number Compression Calculator AI Connector
Analyze text to calculate potential token savings by rounding large numbers.
ViewNumber Base Converter AI Connector
Convert integers and fractional numbers between any bases from 2 to 36 with high precision.
ViewURL Query String Deep Parser AI Connector
Transforms flat URL query strings into deeply nested JSON objects and arrays.
ViewPrompt Compression Efficiency Calculator AI Connector
Evaluate the performance, cost-effectiveness, and quality impact of prompt compression techniques.
View
