What is the key difference between Calc.engineer and Strata?

Calc.engineer belongs to the Developer Tools category with cloud HTTP/SSE execution, while Strata belongs to the Developer Tools category with local stdio execution.

How do I install Calc.engineer or Strata 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 Calc.engineer and Strata free or paid?

Calc.engineer operates under a Free / Open Source model (No auth required). Strata operates under a Free / Open Source model (No auth required).

Which MCP server has more tools and community activity?

Calc.engineer lists 0 tools with 0 views and 0 GitHub stars. Strata lists 0 tools with 0 views and 5,787 GitHub stars.

Can I use both Calc.engineer and Strata 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.

How do I install Calc.engineer or Strata in Claude Desktop, Cursor, or Windsurf?

Both servers follow the standard Model Context Protocol configuration format. Simply copy the JSON block from the configuration section above and paste it into your AI client's mcpServers configuration object (for instance in claude_desktop_config.json or ~/.cursor/mcp.json ), then completely restart or refresh the application.

Are Calc.engineer and Strata free to use, or do they require API keys?

Calc.engineer is listed under a Free / Open Source model with No auth required . Strata operates under a Free / Open Source model with No auth required . If environment variables are required (such as API keys), be sure to define them under the env key in your MCP client's configuration file.

Can I run both Calc.engineer and Strata at the same time in my AI client?

Yes! MCP clients support multi-server orchestration. You can include both calc-engineer and strata as distinct keys inside the single mcpServers object in your configuration file. Your AI assistant will automatically select and call the appropriate tool from either server during chat sessions.

Which MCP server has higher directory engagement and quality ratings?

On AllMCPs, Calc.engineer has a Quality Score of 42 /100 ( Fair ) with 0 views, 0 installs, and 0 GitHub stars. Strata holds a Quality Score of 44 /100 ( Fair ) with 0 views, 0 installs, and 5,787 GitHub stars.

Side-by-Side Model Context Protocol Comparison

Calc.engineer vs Strata

In-depth architectural comparison of the Calc.engineer and Strata 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

Calc.engineer

Developer Tools · Remote HTTP/SSE

Quality: 42/100 (Fair) | Auth: No auth required

Strata

Developer Tools · Local stdio

Quality: 44/100 (Fair) | Auth: No auth required

Verdict Summary: Choose Calc.engineer if you need specialized Developer Tools tools running via a hosted cloud SSE transport. Choose Strata if your workspace requires Developer 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 Calc.engineer when:

You need dedicated capabilities in the Developer Tools domain.
You prefer remote streaming HTTP/SSE transport architecture.
Your security boundary fits: No auth required (Free / Open Source).

Explore Calc.engineer Details

Choose Strata when:

You need dedicated capabilities in the Developer Tools domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: No auth required (Free / Open Source).

Explore Strata Details

Feature & Specification Comparison

Specification	C Calc.engineer Developer Tools	S Strata Developer Tools
Summary	88 free engineering calculators: RF link budgets, LoRa/Meshtastic, PCB, solar, homelab. Keyless.	MCP server for progressive tool usage at any scale (see https://klavis.ai)
Category & Scope	Developer Tools	Developer Tools
Quality signal

Tools & Capabilities Breakdown

Calc.engineer Tools (0)

No explicit tool names declared in metadata yet. Check project README on main listing page.

Strata Tools (0)

No explicit tool names declared in metadata yet. Check project README on main listing page.

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).

Calc.engineer Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "calc-engineer": {
      "url": "https://calc.engineer"
    }
  }
}

Strata Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "strata": {
      "command": "npx",
      "args": [
        "-y",
        "@playwright/mcp@latest"
      ]
    }
  }
}

Frequently Asked Questions

Calc.engineer is categorized under Developer Tools and uses a remote streaming HTTP/SSE transport. In contrast, Strata belongs to Developer Tools using local stdio subprocess. Select Calc.engineer when you need capabilities focused on developer tools and Strata when you require tools for developer tools.

More alternatives to Calc.engineer More alternatives to Strata Developer Tools category hub