public-data-apis · prepared

GSA Per Diem API boundary

Official-source access, authentication, request-shaping, freshness, legal, and interpretation boundaries for GSA Per Diem API.

version 1.0.0freshness currentobserved 2026-08-28T18:03:05Z

resource.public-data.gsa-per-diem-api
sha256:b4e0cdc83a72224bef9c84993757a92a4ca80a19fcff35a283e69c16202c91be

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Evidence-backed facts

  1. U.S. General Services Administration documents federal lodging and meals-and-incidental-expense rates by location and fiscal year. informative
  2. Requests use a data.gov API key that must remain secret; access does not grant travel authorization, reimbursement, accounting, or GSA policy authority. informative
  3. Clients must bind fiscal year, city, state, ZIP code, rate type, endpoint, and returned effective periods. informative
  4. Published rates require policy and trip context and do not prove traveler eligibility, allowable expense, payment, or the rate applicable to every location. informative