What is the key difference between Calculator Server and Growthbook MCP?

Calculator Server belongs to the Data Science Tools category with cloud HTTP/SSE execution, while Growthbook MCP belongs to the Data Science Tools category with local stdio execution.

How do I install Calculator Server or Growthbook MCP in Claude Desktop or Cursor?

Copy the mcpServers JSON configuration snippet provided on this page into your claude_desktop_config.json or ~/.cursor/mcp.json file and restart your AI client.

Are Calculator Server and Growthbook MCP free or paid?

Calculator Server operates under a Free / Open Source model (No auth required). Growthbook MCP operates under a Free / Open Source model (API Key required).

Which MCP server has more tools and community activity?

Calculator Server lists 6 tools with 3 views and 6 GitHub stars. Growthbook MCP lists 4 tools with 3 views and 24 GitHub stars.

Can I use both Calculator Server and Growthbook MCP together in the same MCP host?

Yes! MCP hosts like Claude Desktop, Cursor, Windsurf, Cline, and VS Code support configuring multiple servers under the mcpServers object simultaneously.

Side-by-Side Model Context Protocol Comparison

Calculator Server vs Growthbook MCP

In-depth architectural comparison of the Calculator Server and Growthbook MCP MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

At a Glance & Executive Verdict

Calculator Server

Data Science Tools · Remote HTTP/SSE

Quality: 47/100 (Fair) | Auth: No auth required

Growthbook MCP

Data Science Tools · Local stdio

Quality: 67/100 (Great) | Auth: API Key required

Verdict Summary: Choose Calculator Server if you need specialized Data Science Tools tools running via a hosted cloud SSE transport. Choose Growthbook MCP if your workspace requires Data Science Tools integration with local subprocess execution. Both servers can be configured concurrently in your client's mcpServers manifest.

Which MCP Server Should You Choose?

Choose Calculator Server when:

You need dedicated capabilities in the Data Science Tools domain.
You prefer remote streaming HTTP/SSE transport architecture.
Your security boundary fits: No auth required (Free / Open Source).
Primary tools included: 13 MCP tools for mathematics and quantitative analysis, Expression evaluation with variables and mathematical constants, Statistics, percentile, and dataset summary calculations.

Explore Calculator Server Details

Choose Growthbook MCP when:

You need dedicated capabilities in the Data Science Tools domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: API Key required (Free / Open Source).
You have access to required keys: GB_API_KEY, GB_API_URL, GB_MCP_TRANSPORT, GB_MCP_PORT, GB_MCP_HOST, GB_MCP_URL, GB_OAUTH_ISSUER, GB_SKILLS_ENABLED.

Feature & Specification Comparison

Specification	Calculator Server avisangle Data Science Tools	Growthbook MCP growthbook Data Science Tools
Summary	A comprehensive Go-based MCP server for mathematical computations, implementing 13 mathematical tools across basic arithmetic, advanced functions, statistical analysis, unit conversions, and financial calculations.	Tools for creating and interacting with GrowthBook feature flags and experiments.
Category & Scope

Tools & Capabilities Breakdown

Calculator Server Tools (6)

13 MCP tools for mathematics and quantitative analysis

Expression evaluation with variables and mathematical constants

Statistics, percentile, and dataset summary calculations

Single and batch conversion across five unit categories

NPV, IRR, loan, and investment scenario analysis

Stdio and streamable HTTP transports with SSE support

Growthbook MCP Tools (4)

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

Calculator Server Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "avisangle-calculator-server": {
      "url": "http://localhost:8080/mcp"
    }
  }
}

Growthbook MCP Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "growthbook-growthbook-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@growthbook/mcp"
      ],
      "env": {
        "GB_API_KEY": "YOUR_GB_API_KEY_HERE",
        "GB_API_URL": "YOUR_GB_API_URL_HERE",
        "GB_MCP_TRANSPORT": "YOUR_GB_MCP_TRANSPORT_HERE",
        "GB_MCP_PORT": "YOUR_GB_MCP_PORT_HERE",
        "GB_MCP_HOST": "YOUR_GB_MCP_HOST_HERE",
        "GB_MCP_URL": "YOUR_GB_MCP_URL_HERE",
        "GB_OAUTH_ISSUER": "YOUR_GB_OAUTH_ISSUER_HERE",
        "GB_SKILLS_ENABLED": "YOUR_GB_SKILLS_ENABLED_HERE"
      }
    }
  }
}

Frequently Asked Questions

Calculator Server is categorized under Data Science Tools and uses a remote streaming HTTP/SSE transport. In contrast, Growthbook MCP belongs to Data Science Tools using local stdio subprocess. Select Calculator Server when you need capabilities focused on data science tools and Growthbook MCP when you require tools for data science tools.

More alternatives to Calculator Server More alternatives to Growthbook MCP Data Science Tools category hub