GSA Per Diem

live GovernmentTravel

GSA per diem API — US federal government travel lodging and meal allowances by city or zip code.

2 tools
0ms auth
free tier 50 calls/day

Tools

rates_by_city

Get US federal per diem rates (government travel lodging and meal allowances) for a city by name and state. Returns the monthly lodging ceiling (per-diem lodging varies by month/season) and the flat M

No parameters required.

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rates_by_zip

Get US federal per diem rates (government travel lodging and meal allowances) for a location by zip code. Returns the monthly lodging ceiling (per-diem lodging varies by month/season) and the flat M&I

No parameters required.

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Test with curl

The gateway speaks JSON-RPC 2.0 over HTTP POST. You can test any pack directly from the terminal.

List available tools
bash 
curl -X POST https://gateway.pipeworx.io/gsa_perdiem/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'
Call a tool
bash 
curl -X POST https://gateway.pipeworx.io/gsa_perdiem/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":2,"method":"tools/call","params":{"name":"rates_by_city","arguments":{}}}'

Use with the SDK

Install @pipeworx/sdk to call tools from any TypeScript/Node project.

TypeScript 
import { Pipeworx } from '@pipeworx/sdk';
const px = new Pipeworx();
const result = await px.call("rates_by_city", {});
ask_pipeworx 
// Or ask in plain English:
const answer = await px.ask("gsa per diem api — us federal government travel lodging and meal allowances by city or zip code");