What is the key difference between Atlas and OnceAsk?

Atlas belongs to the Developer Tools category with local stdio execution, while OnceAsk belongs to the Developer Tools category with local stdio execution.

How do I install Atlas or OnceAsk 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 Atlas and OnceAsk free or paid?

Atlas operates under a Free / Open Source model (No auth required). OnceAsk operates under a Free / Open Source model (No auth required).

Which MCP server has more tools and community activity?

Atlas lists 0 tools with 2 views and 1 GitHub stars. OnceAsk lists 0 tools with 0 views and 0 GitHub stars.

Can I use both Atlas and OnceAsk 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

Atlas vs OnceAsk

In-depth architectural comparison of the Atlas and OnceAsk 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

Atlas

Developer Tools · Local stdio

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

OnceAsk

Developer Tools · Local stdio

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

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

Choose OnceAsk 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 OnceAsk Details

Feature & Specification Comparison

Specification	Atlas Developer Tools	O OnceAsk Developer Tools
Summary	Atlas is a YAML-defined semantic layer for analytics — authored by humans, consumed by AI agents.	MCP server for OnceAsk, the AI-native current-address layer for people and agents.
Category & Scope	Developer Tools	Developer Tools
Quality signal

Tools & Capabilities Breakdown

Atlas Tools (0)

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

OnceAsk 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).

Atlas Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "atlas-2": {
      "command": "bunx",
      "args": [
        "@useatlas/mcp"
      ]
    }
  }
}

OnceAsk Configuration

mcpServers (Claude Desktop / Cursor)

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

Frequently Asked Questions

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

More alternatives to Atlas More alternatives to OnceAsk Developer Tools category hub