One API to look up U.S. federal GSA per-diem (travel lodging + M&IE) and HUD Fair Market Rent / Small Area FMR (rent by bedroom, with voucher payment-standard bands) for any ZIP code — joined in a single call. FY2026, public-domain data, clean JSON. Built for travel-nurse stipend, relocation/HR, and real-estate/Section-8 tools. Unofficial; not affiliated with GSA or HUD.
{
"zip": "11201",
"location": {
"state": "NY",
"county": "Kings County",
"areaName": "New York, NY HUD Metro FMR Area"
},
"fairMarketRent": {
"level": "zip-safmr",
"fiscalYear": 2026,
"byBedroom": {
"0": {
"fmr": 3800,
"ps90": 3420,
"ps110": 4180
},
"1": {
"fmr": 3990,
"ps90": 3591,
"ps110": 4389
},
"2": {
"fmr": 4370,
"ps90": 3933,
"ps110": 4807
},
"3": {
"fmr": 5470,
"ps90": 4923,
"ps110": 6017
},
"4": {
"fmr": 5950,
"ps90": 5355,
"ps110": 6545
}
},
"note": "Small Area FMR (ZIP-level). ps90/ps110 = HUD's 90-110% payment-standard band; the local PHA sets the actual standard within it."
},
"perDiem": {
"fiscalYear": 2026,
"basis": "gsa-county",
"countyResolved": true,
"area": "New York City",
"mie": 92,
"mieBreakdown": {
"total": 92,
"breakfast": 23,
"lunch": 26,
"dinner": 38,
"incidentals": 5,
"firstLastDay": 69
},
"lodging": {
"seasonal": true,
"min": 179,
"max": 342,
"applicable": null,
"seasons": [
{
"rate": 342,
"begin": "October 1",
"end": "December 31"
},
{
"rate": 179,
"begin": "January 1",
"end": "February 28"
},
{
"rate": 281,
"begin": "March 1",
"end": "June 30"
},
{
"rate": 237,
"begin": "July 1",
"end": "August 31"
},
{
"rate": 342,
"begin": "September 1",
"end": "September 30"
}
]
},
"note": "GSA per-diem for this ZIP's county. For exact sub-county areas, query /v1/perdiem?city=."
},
"sources": {
"perDiem": {
"source": "U.S. General Services Administration (GSA) FY2026 Per Diem Master Rates File",
"url": "https://www.gsa.gov/travel/plan-a-trip/per-diem-rates",
"license": "U.S. Government work, public domain"
},
"fairMarketRent": {
"source": "U.S. Dept. of Housing and Urban Development (HUD), Fair Market Rents",
"url": "https://www.huduser.gov/portal/datasets/fmr.html",
"license": "U.S. Government work, public domain"
}
},
"disclaimer": "Unofficial. Data derived from public-domain U.S. federal records (GSA per-diem, HUD FMR/SAFMR). Not affiliated with or endorsed by GSA or HUD. Local PHAs set actual voucher payment standards within HUD's 90-110% band."
}
curl --location --request GET 'https://zylalabs.com/api/13015/govrates+per+diem+and+fair+market+rent+api/26126/look+up+per-diem+and+fmr+by+zip?zip=11201' --header 'Authorization: Bearer YOUR_API_KEY'
Después de registrarte, a cada desarrollador se le asigna una clave de acceso a la API personal, una combinación única de letras y dígitos proporcionada para acceder a nuestro endpoint de la API. Para autenticarte con el GovRates Per Diem and Fair Market Rent API simplemente incluye tu token de portador en el encabezado de Autorización.
| Encabezado | Descripción |
|---|---|
Autorización
|
Requerido
Debería ser Bearer access_key. Consulta "Tu Clave de Acceso a la API" arriba cuando estés suscrito.
|
Sin compromiso a largo plazo. Mejora, reduce o cancela en cualquier momento. La Prueba Gratuita incluye hasta 50 solicitudes.
(Ahorra 2 meses pagando anualmente 🎉)
Look up two essential US federal datasets for any ZIP code in a single call:
The free official sources exist, but they are two separate, clunky, separately-keyed government feeds with no ZIP-to-county join and no per-diem/FMR unification. GovRates returns both, joined and ZIP-resolved, as one clean JSON response — the answer a developer wants instead of wiring two .gov sources, and the answer a generic chatbot hallucinates.
GET /v1/lookup?zip=NNNNN — Returns the GSA per-diem AND the HUD Fair Market Rent for a ZIP code, joined in one response. Optional &month=1–12 resolves the seasonal lodging rate.
Request: GET /v1/lookup?zip=10001
{
"zip": "10001",
"location": { "state": "NY", "county": "New York County", "areaName": "New York, NY HUD Metro FMR Area" },
"fairMarketRent": { "level": "zip-safmr", "fiscalYear": 2026, "byBedroom": { "2": { "fmr": 4370, "ps90": 3933, "ps110": 4807 } } },
"perDiem": { "fiscalYear": 2026, "basis": "gsa-county", "area": "New York City", "mie": 92, "lodging": { "seasonal": true, "min": 179, "max": 342 } },
"disclaimer": "Unofficial. Not affiliated with or endorsed by GSA or HUD."
}
No GovRates es no oficial y no está afiliado ni respaldado por GSA o HUD Está construido a partir de datos federales de EE UU de dominio público — las tarifas maestras de diarias de GSA del año fiscal 2026 y los alquileres de mercado justos de HUD del año fiscal 2026 / FMRs de áreas pequeñas — normalizados y unidos por código postal con atribución de fuente incluida en cada respuesta
GSA establece el viático por condado basis="gsa-county" significa que el condado del código postal es un área GSA específicamente listada con su propia tarifa basis="standard" significa que el condado no está listado por separado por lo que se aplica la tarifa federal estándar CONUS (la predeterminada de GSA) basis="oconus" significa Alaska Hawaii o un territorio de EE UU que son establecidos por el DoD/Departamento de Estado y no forman parte del conjunto de datos GSA CONUS (por lo que no se devuelve una tarifa CONUS para ellos)
Son el 90% y el 110% del Alquiler Justo de Pequeñas Áreas de HUD — la banda dentro de la cual una Autoridad de Vivienda Pública local establece el estándar de pago real del Programa de Sección 8 / Vales de Elección de Vivienda GovRates devuelve el Alquiler Justo más esta banda del 90-110% la Autoridad de Vivienda Pública local establece el estándar exacto dentro de ella
The data reflects the current U.S. federal fiscal year (FY2026). GSA per-diem rates and HUD Fair Market Rents are published annually (around October 1), and the API is refreshed each fiscal year so responses stay accurate. Every response includes the fiscalYear so you always know which year you are reading.
Common uses include travel-nurse and healthcare-staffing pay and housing-stipend calculators, corporate relocation and HR cost tools, business-travel expense apps, and real-estate or Section 8 voucher tools. A single ZIP lookup returns both the GSA per-diem (the inputs to a tax-free stipend) and the HUD Fair Market Rent (housing) for that location, so you do not have to wire up two separate government data sources.
The GovRates API returns two main types of data: GSA per-diem rates (including lodging and M&IE) and HUD Fair Market Rent (FMR) data, both for a specified ZIP code. This data is combined in a single JSON response for ease of use.
Key fields in the response include "zip," "location" (with state, county, and area name), "fairMarketRent" (with FMR by bedroom size), and "perDiem" (with lodging and M&IE details). Each field provides essential information for travel and housing calculations.
The response data is structured in a clean JSON format, with separate sections for location, fair market rent, and per diem. Each section contains relevant subfields, making it easy to parse and utilize for applications.
The primary parameter is "zip," which specifies the ZIP code for the lookup. An optional "month" parameter (1-12) can be included to retrieve seasonal lodging rates, allowing users to customize their requests based on specific needs.
The endpoint provides information on GSA per-diem rates (maximum lodging and M&IE) and HUD Fair Market Rent data (by bedroom size) for any ZIP code. This comprehensive data supports various applications in travel, housing, and real estate.
The data is sourced from public-domain U.S. federal datasets: the GSA's FY2026 Per Diem Master Rates and HUD's FY2026 Fair Market Rents. The API normalizes and joins these datasets for easier access and use.
Data accuracy is maintained by using official federal datasets that are updated annually. The API ensures that the data reflects the current fiscal year and includes a disclaimer indicating its unofficial status, promoting transparency.
Typical use cases include calculating travel stipends for healthcare staff, assisting corporate relocation and HR departments, and providing real estate professionals with accurate rental data for Section 8 housing. The combined data streamlines these processes.