What is the key difference between Arbitype and EffectFence?

Arbitype belongs to the Developer Tools category with local stdio execution, while EffectFence belongs to the Developer Tools category with local stdio execution.

How do I install Arbitype or EffectFence 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 Arbitype and EffectFence free or paid?

Arbitype operates under a Free / Open Source model (No auth required). EffectFence operates under a Free / Open Source model (No auth required).

Which MCP server has more tools and community activity?

Arbitype lists 0 tools with 0 views and 0 GitHub stars. EffectFence lists 0 tools with 2 views and 0 GitHub stars.

Can I use both Arbitype and EffectFence 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

Arbitype vs EffectFence

In-depth architectural comparison of the Arbitype and EffectFence 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

Arbitype

Developer Tools · Local stdio

Quality: 25/100 (Emerging) | Auth: No auth required

EffectFence

Developer Tools · Local stdio

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

Verdict Summary: Choose Arbitype if you need specialized Developer Tools tools running via a local process. Choose EffectFence 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 Arbitype 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 Arbitype Details

Choose EffectFence 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 EffectFence Details

Feature & Specification Comparison

Specification	A Arbitype Developer Tools	EffectFence Developer Tools
Summary	Typed decision tools for AI agents, powered by TypeSafe Jev.	Stops agents double-firing side effects: 1,000 racing duplicates, exactly one execution.
Category & Scope	Developer Tools	Developer Tools
Quality signal

Tools & Capabilities Breakdown

Arbitype Tools (0)

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

EffectFence 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).

Arbitype Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "arbitype": {
      "command": "npx",
      "args": [
        "-y",
        "arbitype"
      ]
    }
  }
}

EffectFence Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "effectfence": {
      "command": "npx",
      "args": [
        "-y",
        "effectfence"
      ]
    }
  }
}

Frequently Asked Questions

Arbitype is categorized under Developer Tools and uses a local stdio subprocess. In contrast, EffectFence belongs to Developer Tools using local stdio subprocess. Select Arbitype when you need capabilities focused on developer tools and EffectFence when you require tools for developer tools.

More alternatives to Arbitype More alternatives to EffectFence Developer Tools category hub