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ClaudeChatGPTPerplexityGeminiMicrosoft CopilotRaycastMeta AIGrokZ.aiQwenKimi
DeepSeekMistralCursorVS CodeWindsurfJetBrainsClineLovableVercel AI SDKLangChain

Use expression-evaluator with your AI.

Connect your account once and let the AI you already use work with it, without building another integration. Equip your AI with flawless algebraic parsing. Safely evaluate complex mathematical string expressions without using vulnerable eval() execution.

Included with plan

Ask AI about this Connector

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.

ChatGPTClaudeCursorPerplexityGeminiMicrosoft CopilotRaycastMeta AI

Complete set · 1 capability

The complete expression-evaluator capability set.

These are the exact actions your AI can choose when you ask it to work with expression-evaluator.

Capability set01 / 01

01

1 capability in this set.

Part of 1 available through expression-evaluator.

  1. 01

    Evaluate math

    Safely evaluates a string-based mathematical expression using a strict AST parser. Avoids LLM hallucinations on complex algebra

Observed, not estimated

789ms average. Fast in production.

expression-evaluator is checked daily against the live service.

Daily averagePeak 932ms
Aug 20Today
Fastest day
671ms
Slowest day
932ms
14-day trend
Slowing+12%

Connect your client

One URL. Every client.

Activate the Connector, copy your link, and paste it into the client you already use. 1 capability arrives 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 expression-evaluator, so you can see the experience inside your AI.

It does not authenticate your account with expression-evaluator. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.

expression-evaluator Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_AgwU5vOr68LRTTxf1lGQM9MsmS2e8aYldzAcaQHV/mcp

Claude Desktop

Follow the steps below to connect in seconds.

  1. 1In Claude Desktop, open Settings → Connectors.
  2. 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
  3. 3Click Add and start a new chat — expression-evaluator capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "deterministic-math-expression-evaluator-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_AgwU5vOr68LRTTxf1lGQM9MsmS2e8aYldzAcaQHV/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 expression-evaluator owners ask.

  • 01

    Why not just use the standard JavaScript eval() function?

    Using eval() exposes your agentic infrastructure to remote code execution (RCE) vulnerabilities. If a user prompts the AI to evaluate process.exit(), eval() will shut down your server. This MCP parses strings into an Abstract Syntax Tree (AST), making malicious execution impossible.

  • 02

    Does it support complex nested parentheses?

    Yes. The recursive descent parser handles infinite levels of nested parentheses, ensuring the core order of operations (PEMDAS) is strictly enforced.

  • 03

    What happens if there's a division by zero?

    The math engine intercepts infinite states like Division by Zero or invalid syntax, safely returning a gracefully handled error string rather than crashing the capability.

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