GSA Per Diem

MCP server for GSA Per Diem Rates. Federal travel lodging and M&IE rates for IGCEs, travel CLINs, and contractor travel cost estimation. Look up rates by city, state, or ZIP across all CONUS locations. Returns monthly lodging rates with seasonal variations, M&IE breakdowns, and first/last day travel rates at 75%. **6 tools.** Optional free api.data.gov key for 1,000 req/hr. Without a key, falls back to DEMO_KEY at 30/hr, 50/day. Hardened across 7 audit rounds with 413 regression tests including two live audits. Built for GS-1102 contracting officers and proposal pricing teams.

First seen 2 Oct 2026. Evidence as of 5 Oct 2026.