What is the key difference between Mcp and Once?

Mcp belongs to the Developer Tools category with local stdio execution, while Once belongs to the Developer Tools category with local stdio execution.

How do I install Mcp or Once 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 Mcp and Once free or paid?

Mcp operates under a Free / Open Source model (No auth required). Once operates under a Free / Open Source model (No auth required).

Which MCP server has more tools and community activity?

Mcp lists 0 tools with 0 views and 20 GitHub stars. Once lists 0 tools with 0 views and 0 GitHub stars.

Can I use both Mcp and Once 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 Mcp or Once 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 Mcp and Once free to use, or do they require API keys?

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

Yes! MCP clients support multi-server orchestration. You can include both mcp-54 and once 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, Mcp has a Quality Score of 48 /100 ( Fair ) with 0 views, 0 installs, and 20 GitHub stars. Once holds a Quality Score of 27 /100 ( Emerging ) with 0 views, 0 installs, and 0 GitHub stars.

Side-by-Side Model Context Protocol Comparison

Mcp vs Once

In-depth architectural comparison of the Mcp and Once 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

Mcp

Developer Tools · Local stdio

Quality: 48/100 (Fair) | Auth: No auth required

Once

Developer Tools · Local stdio

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

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

Choose Once 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 Once Details

Feature & Specification Comparison

Specification	M Mcp Developer Tools	O Once Developer Tools
Summary	Workix hub catalog plus freelance digest/search and proposal helpers for AI agents	Run a side effect exactly once under retries, redelivery, and concurrent workers.
Category & Scope	Developer Tools	Developer Tools
Quality signal

Tools & Capabilities Breakdown

Mcp Tools (0)

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

Once 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).

Mcp Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "mcp-54": {
      "command": "npx",
      "args": [
        "-y",
        "@workix/mcp"
      ]
    }
  }
}

Once Configuration