What is the key difference between Orionbelt Semantic Layer and Legion MCP?

Orionbelt Semantic Layer belongs to the Databases category with local stdio execution, while Legion MCP belongs to the Databases category with local stdio execution.

How do I install Orionbelt Semantic Layer or Legion MCP 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 Orionbelt Semantic Layer and Legion MCP free or paid?

Orionbelt Semantic Layer operates under a Free / Open Source model (No auth required). Legion MCP operates under a Free / Open Source model (other).

Which MCP server has more tools and community activity?

Orionbelt Semantic Layer lists 0 tools with 0 views and 75 GitHub stars. Legion MCP lists 10 tools with 5 views and 94 GitHub stars.

Can I use both Orionbelt Semantic Layer and Legion MCP 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

Orionbelt Semantic Layer vs Legion MCP

In-depth architectural comparison of the Orionbelt Semantic Layer and Legion MCP 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

Orionbelt Semantic Layer

Databases · Local stdio

Quality: 45/100 (Fair) | Auth: No auth required

Legion MCP

Databases · Local stdio

Quality: 56/100 (Good) | Auth: other

Verdict Summary: Choose Orionbelt Semantic Layer if you need specialized Databases tools running via a local process. Choose Legion MCP if your workspace requires Databases integration with local subprocess execution. Both servers can be configured concurrently in your client's mcpServers manifest.

Which MCP Server Should You Choose?

Choose Orionbelt Semantic Layer when:

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

Explore Orionbelt Semantic Layer Details

Choose Legion MCP when:

You need dedicated capabilities in the Databases domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: other (Free / Open Source).
You have access to required keys: DB_TYPE, DB_CONFIG, DB_CONFIGS.
Primary tools included: execute_query, execute_query_json, get_table_columns.

Explore Legion MCP Details

Feature & Specification Comparison

Specification	O Orionbelt Semantic Layer Databases	Legion MCP TheRaLabs Databases
Summary	API-first semantic layer MCP server compiling YAML models into dialect-specific SQL	Universal database MCP server supporting multiple database types including PostgreSQL, Redshift, CockroachDB, MySQL, RDS MySQL, Microsoft SQL Server, BigQuery, Oracle DB, and SQLite.
Category & Scope	Databases

Tools & Capabilities Breakdown

Orionbelt Semantic Layer Tools (0)

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

Legion MCP Tools (10)

execute_query

Execute a SQL query and return results as a markdown table

execute_query_json

Execute a SQL query and return results as JSON

get_table_columns

Get column names for a specific table

get_table_types

Get column types for a specific table

get_query_history

Get the recent query history

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).

Orionbelt Semantic Layer Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "orionbelt-semantic-layer": {
      "command": "uvx",
      "args": [
        "orionbelt-semantic-layer-mcp"
      ]
    }
  }
}

Legion MCP Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "theralabs-legion-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/inspector"
      ],
      "env": {
        "DB_TYPE": "YOUR_DB_TYPE_HERE",
        "DB_CONFIG": "YOUR_DB_CONFIG_HERE",
        "DB_CONFIGS": "YOUR_DB_CONFIGS_HERE"
      }
    }
  }
}

Frequently Asked Questions

Orionbelt Semantic Layer is categorized under Databases and uses a local stdio subprocess. In contrast, Legion MCP belongs to Databases using local stdio subprocess. Select Orionbelt Semantic Layer when you need capabilities focused on databases and Legion MCP when you require tools for databases.

More alternatives to Orionbelt Semantic Layer More alternatives to Legion MCP Databases category hub