What is the key difference between Vibsync and Arc?

Vibsync belongs to the Knowledge & Memory category with local stdio execution, while Arc belongs to the Knowledge & Memory category with cloud HTTP/SSE execution.

How do I install Vibsync or Arc 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 Vibsync and Arc free or paid?

Vibsync operates under a Free / Open Source model (No auth required). Arc operates under a Free / Open Source model (No auth required).

Which MCP server has more tools and community activity?

Vibsync lists 0 tools with 0 views and 0 GitHub stars. Arc lists 0 tools with 0 views and 0 GitHub stars.

Can I use both Vibsync and Arc 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 Vibsync or Arc 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 Vibsync and Arc free to use, or do they require API keys?

Vibsync is listed under a Free / Open Source model with No auth required . Arc 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 Vibsync and Arc at the same time in my AI client?

Yes! MCP clients support multi-server orchestration. You can include both vibsync-3 and arc 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, Vibsync has a Quality Score of 27 /100 ( Emerging ) with 0 views, 0 installs, and 0 GitHub stars. Arc holds a Quality Score of 30 /100 ( Emerging ) with 0 views, 0 installs, and 0 GitHub stars.

Side-by-Side Model Context Protocol Comparison

Vibsync vs Arc

In-depth architectural comparison of the Vibsync and Arc 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

Vibsync

Knowledge & Memory · Local stdio

Quality: 27/100 (Emerging) | Auth: No auth required

Arc

Knowledge & Memory · Remote HTTP/SSE

Quality: 30/100 (Emerging) | Auth: No auth required

Verdict Summary: Choose Vibsync if you need specialized Knowledge & Memory tools running via a local process. Choose Arc if your workspace requires Knowledge & Memory integration with remote web transport. Both servers can be configured concurrently in your client's mcpServers manifest.

Which MCP Server Should You Choose?

Choose Vibsync when:

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

Explore Vibsync Details

Choose Arc when:

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

Explore Arc Details

Feature & Specification Comparison

Specification	V Vibsync Knowledge & Memory	A Arc Knowledge & Memory
Summary	One shared brain for your AI coding agents: team memory, agent Q&A, tasks, and file claims.	Local coordination hub for coding agents: durable shared memory, tasks, and handoffs. Desktop app.
Category & Scope	Knowledge & Memory	Knowledge & Memory
Quality signal

Tools & Capabilities Breakdown

Vibsync Tools (0)

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

Arc 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).

Vibsync Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "vibsync-3": {
      "command": "npx",
      "args": [
        "-y",
        "vibsync-3"
      ]
    }
  }
}

Arc Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "arc": {
      "url": "https://megastructure.ai/arc"
    }
  }
}

Frequently Asked Questions

Vibsync is categorized under Knowledge & Memory and uses a local stdio subprocess. In contrast, Arc belongs to Knowledge & Memory using remote streaming HTTP/SSE transport. Select Vibsync when you need capabilities focused on knowledge & memory and Arc when you require tools for knowledge & memory.

More alternatives to Vibsync More alternatives to Arc Knowledge & Memory category hub Canonical compare URL

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