Skip to content
appsgit

GSA CALC+

GSA CALC+ is an MCP server that adds tools to AI assistants such as Claude Desktop, Claude Code and Cursor. GSA CALC+ awarded labor ceiling rates from more than 230,000 MAS contract records. It has 27 GitHub stars, is released under the MIT license and runs locally with uvx gsa-calc-mcp.

github.com/1102tools-dev/federal-contracting-mcps (opens in a new tab)

Data as of from the GitHub API and the official MCP registry; description from the project's repository. Report an error

View on GitHub (opens in a new tab)Website (opens in a new tab)

Install GSA CALC+

Generated from the server's MCP registry entry. Replace your-value with your own values.

Claude Desktop

claude_desktop_config.json
{
  "mcpServers": {
    "gsa-calc": {
      "command": "uvx",
      "args": [
        "gsa-calc-mcp"
      ]
    }
  }
}

Settings > Developer > Edit Config. macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\. Restart Claude Desktop afterwards.

Claude Code

claude mcp add --transport stdio gsa-calc -- uvx gsa-calc-mcp

Cursor

.cursor/mcp.json
{
  "mcpServers": {
    "gsa-calc": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "gsa-calc-mcp"
      ]
    }
  }
}

Project file; use ~/.cursor/mcp.json to enable it in every project.

VS Code

.vscode/mcp.json
{
  "servers": {
    "gsa-calc": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "gsa-calc-mcp"
      ]
    }
  }
}

Claude Code (remote)

claude mcp add --transport http gsa-calc "https://gsa-calc.1102tools.com/mcp"

The same server is also hosted as a remote MCP endpoint, so nothing runs on your machine.

Config formats checked against the official docs on Oct 7, 2026: modelcontextprotocol.io (opens in a new tab), code.claude.com (opens in a new tab), cursor.com (opens in a new tab), code.visualstudio.com (opens in a new tab).

About GSA CALC+

Free, open-source MCP server for the GSA CALC+ Labor Ceiling Rates API. Query awarded GSA MAS schedule hourly rates for IGCE development, price reasonableness analysis, and market research.

  • mcp
  • model-context-protocol
  • sam-gov
  • usaspending
  • federal-contracting
  • federal-data
  • govcon
  • mcp-server
  • acquisition
  • federal-acquisition

Similar MCP servers

More other MCP servers

All Other

FAQ

GSA CALC+ FAQ

Still curious? Email info@appsgit.com.

How do I install the GSA CALC+ MCP server?

Add the command uvx gsa-calc-mcp to your MCP client: put it in claude_desktop_config.json for Claude Desktop, run claude mcp add for Claude Code, or add it to .cursor/mcp.json (Cursor) or .vscode/mcp.json (VS Code). The snippets on this page are ready to paste.

Is GSA CALC+ free?

The server is open source under the MIT license, so running it is free. It does not declare any required API key.

Is GSA CALC+ actively maintained?

The most recent commit was on Oct 25, 2026. The latest release is v1.0.34, published Oct 21, 2026. appsgit only lists MCP servers with a commit in the last six months.