GSA CALC+ (1102tools-dev) MCP Server

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.

People connecting this server to Claude, Cursor, VS Code, or another MCP client. The project is written in Python.

One of 9 MCP servers published from 1102tools-dev/federal-contracting-mcps. Stars and repository activity are shared across all of them. See all 9 →

VERIFIED ACTIVE

LAST COMMIT 2026-09-27 · VERIFIED 2026-09-30

MIT · Python servers · how we verify → /methodology

01 · Install GSA CALC+ (1102tools-dev)

before you install - you'll need

The README does not document required environment variables for a basic install.

Claude Code

claude mcp add 1102tools-dev-federal-contracting-mcps-s -- uvx gsa-calc-mcp

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "1102tools-dev-federal-contracting-mcps-s": {
      "command": "uvx",
      "args": [
        "gsa-calc-mcp"
      ]
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions

license MIT - declared in the repository

pypi package gsa-calc-mcp - check the name against the project README before installing (PyPI has no namespace ownership)

registry vendor namespace com.1102tools - domain-verified with the official MCP registry

03 · What GSA CALC+ (1102tools-dev) can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

Limitations (from the README)

CALC+ data represents the maximum hourly rate a contractor can charge under their GSA MAS contract. Actual task order rates should be lower per FAR 8.405-2(d). These rates are: - Fully burdened (includes fringe, overhead, G&A, profit) - Worldwide (no geographic adjustment) - Master contract-level (not task order-specific) - From vendor Price Proposal Tables (self-reported by contractors)

Latest releases

bls-oews/v1.1.0 · 2026-09-26

The bls-oews package, MCP registry entry, and hosted service completed this release from the same commit. See the workflow summary for deployment verification. · Record production verification for Per Diem 1.2.0 and…

regulations-gov/v2.0.0 · 2026-09-26

The regulations-gov package, MCP registry entry, and hosted service completed this release from the same commit. See the workflow summary for deployment verification. · Directory audit fixes: Regulations.gov 2.0.0 and…

gsa-perdiem/v1.2.0 · 2026-09-26

The gsa-perdiem package, MCP registry entry, and hosted service completed this release from the same commit. See the workflow summary for deployment verification. · Directory audit fixes: Regulations.gov 2.0.0 and GSA…

04 · Who maintains GSA CALC+ (1102tools-dev)

GSA CALC+ is maintained by 1102tools-dev. We track 9 MCP servers from 1102tools-dev - 9 actively maintained, 24 combined GitHub stars, oldest repo from Apr 2026. Full record: all servers from 1102tools-dev.

05 · Facts

repository: github.com/1102tools-dev/federal-contracting-mcps
website: https://1102tools.com/
category: other - actively maintained as of 2026-09-30.
registry: com.1102tools/gsa-calc-mcp (active, first published 2026-08-24 · 5 versions)
packages: pypi:gsa-calc-mcp

06 · GSA CALC+ (1102tools-dev) FAQ

What is GSA CALC+ (1102tools-dev)?

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.

Is GSA CALC+ (1102tools-dev) still maintained?

Yes - as of 2026-09-30, its last commit was 2026-09-27. We re-verify nightly.

How do I install GSA CALC+ (1102tools-dev)?

Run `uvx gsa-calc-mcp`. The README does not document required environment variables for a basic install. You can also paste the ready-made client config above.

Does GSA CALC+ (1102tools-dev) run locally?

Yes - it's a stdio server: it runs on your machine (via uvx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

07 · Alternatives to GSA CALC+ (1102tools-dev)

Alternatives to GSA CALC+ (1102tools-dev)

Maintained other servers if GSA CALC+ (1102tools-dev) isn't the fit.

More MCP servers to compare · GSA Per Diem (1102tools-dev) · Regulations Gov (1102tools-dev) · SAM Gov (1102tools-dev) · Usaspending Gov (1102tools-dev) · BLS OEWS (1102tools)