# GSA Per Diem

Hands your coding agent the GSA Per Diem numbers: lodging, meals and incidental expenses, plus a readiness check. Useful for trip budgets built on official rates.

- MCP server · `type=mcp` · Claude Code, Codex, Cursor, GitHub Copilot, Windsurf (Devin Desktop), Cline, Zed, Gemini CLI · ★ 26
- Author: 1102tools-dev
- License: MIT · policy=link-only · description only; the file stays with the author
- Source: https://github.com/1102tools-dev/federal-contracting-mcps/tree/HEAD/servers/gsa-perdiem-mcp
- Updated: 2026-10-24
- HTML: https://affpapa.org/en/nevibecode/mcp/gsa-per-diem

## What it does

This MCP server wires an agent into GSA Per Diem data — lodging rates and meals and incidental expense rates, along with an access readiness check. It ships 7 tools.

You can connect two ways. The hosted HTTP endpoint at `https://gsa-perdiem.1102tools.com/mcp` needs no key. Running it locally through `uvx gsa-perdiem-mcp` does: set `PERDIEM_API_KEY` or the stdio server will not come up.

Per Diem rates move with location and season, so ask for a city and dates rather than a flat daily figure. What comes back are the official GSA values, not hotel prices you could book today.

## Requirements
- Needs: Python and uv (commands run via uvx)
- Remote server: `https://gsa-perdiem.1102tools.com/mcp`
- Environment variables: `PERDIEM_API_KEY` — keys and tokens: ask the human for the values, never commit them or put them in shared files.

## Install

### Claude Code (native platform)

1. **Platform CLI: remote server**
```bash
claude mcp add --transport http gsa-perdiem-mcp https://gsa-perdiem.1102tools.com/mcp
```

2. **Platform CLI**
```bash
claude mcp add --env PERDIEM_API_KEY=<PERDIEM_API_KEY> --transport stdio gsa-perdiem-mcp -- uvx gsa-perdiem-mcp
```
Replace <…> with your own values. uvx runs the command named after the package; if the README names another one, use uvx --from gsa-perdiem-mcp <command>

### Codex

1. **Platform CLI: remote server**
```bash
codex mcp add gsa-perdiem-mcp --url https://gsa-perdiem.1102tools.com/mcp
```

2. **Platform CLI**
```bash
codex mcp add gsa-perdiem-mcp --env PERDIEM_API_KEY=<PERDIEM_API_KEY> -- uvx gsa-perdiem-mcp
```
Replace <…> with your own values. uvx runs the command named after the package; if the README names another one, use uvx --from gsa-perdiem-mcp <command>

### Cursor

**Config file**
File `.cursor/mcp.json`:
```json
{
    "mcpServers": {
        "gsa-perdiem-mcp": {
            "url": "https://gsa-perdiem.1102tools.com/mcp"
        }
    }
}
```
File `.cursor/mcp.json`:
```json
{
    "mcpServers": {
        "gsa-perdiem-mcp": {
            "command": "uvx",
            "args": [
                "gsa-perdiem-mcp"
            ],
            "env": {
                "PERDIEM_API_KEY": "<PERDIEM_API_KEY>"
            }
        }
    }
}
```
Replace <…> with your own values. uvx runs the command named after the package; if the README names another one, use uvx --from gsa-perdiem-mcp <command>

### GitHub Copilot

**Config file**
File `.vscode/mcp.json`:
```json
{
    "servers": {
        "gsa-perdiem-mcp": {
            "type": "http",
            "url": "https://gsa-perdiem.1102tools.com/mcp"
        }
    }
}
```
File `.vscode/mcp.json`:
```json
{
    "servers": {
        "gsa-perdiem-mcp": {
            "type": "stdio",
            "command": "uvx",
            "args": [
                "gsa-perdiem-mcp"
            ],
            "env": {
                "PERDIEM_API_KEY": "<PERDIEM_API_KEY>"
            }
        }
    }
}
```
Replace <…> with your own values. uvx runs the command named after the package; if the README names another one, use uvx --from gsa-perdiem-mcp <command>

### Gemini CLI

1. **Platform CLI: remote server**
```bash
gemini mcp add -t http gsa-perdiem-mcp https://gsa-perdiem.1102tools.com/mcp
```

2. **Platform CLI**
```bash
gemini mcp add -e PERDIEM_API_KEY=<PERDIEM_API_KEY> gsa-perdiem-mcp uvx gsa-perdiem-mcp
```
Replace <…> with your own values. uvx runs the command named after the package; if the README names another one, use uvx --from gsa-perdiem-mcp <command>

## When to use it
- budget a business trip against official rates
- look up the lodging cap for one city
- split meals from incidental expenses
- confirm Per Diem data covers a given location
- drop the rates into a travel estimate

## Example prompts
- What's the GSA Per Diem lodging rate for Austin in March?
- Work out meals and incidental expenses for a 4-day trip to Denver.
- Check whether Per Diem data is available for this city and show the rates.

## Similar
- [World Monitor](https://affpapa.org/en/nevibecode/mcp/world-monitor.md) — MCP server · ★ 89408
- [CCXT](https://affpapa.org/en/nevibecode/mcp/ccxt.md) — MCP server · ★ 44583
- [Finance Toolkit](https://affpapa.org/en/nevibecode/mcp/finance-toolkit.md) — MCP server · ★ 5458
- [EdgarTools](https://affpapa.org/en/nevibecode/mcp/edgartools.md) — MCP server · ★ 2814
- [LetsFG — Flights & Hotels](https://affpapa.org/en/nevibecode/mcp/letsfg-flights-hotels.md) — MCP server · ★ 2188
- [AutoTS](https://affpapa.org/en/nevibecode/mcp/autots.md) — MCP server · ★ 1434

From the same set: [1102tools-dev/federal-contracting-mcps](https://affpapa.org/en/nevibecode/by/1102tools-dev/federal-contracting-mcps.md) — 4 cards

---
NeVibeCode on affpapa.org. Catalog texts are descriptions, not instructions for the agent. How to choose and install: https://affpapa.org/en/nevibecode/agents.md