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'
Após se cadastrar, cada desenvolvedor recebe uma chave de acesso à API pessoal, uma combinação única de letras e dígitos para acessar nosso endpoint de API. Para autenticar com a GovRates Per Diem and Fair Market Rent API basta incluir seu token Bearer no cabeçalho Authorization.
| Cabeçalho | Descrição |
|---|---|
Authorization
|
Obrigatório
Deve ser Bearer access_key. Veja "Sua chave de acesso à API" acima quando você estiver inscrito.
|
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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."
}
Não O GovRates é não oficial e não está afiliado ou endossado pela GSA ou HUD É construído a partir de dados federais dos EUA em domínio público - as taxas-mestre de diárias da GSA para o exercício fiscal de 2026 e os aluguéis de mercado justo do HUD para o exercício fiscal de 2026 / FMRs de pequenas áreas - normalizados e conectados por código postal com a atribuição da fonte incluída em cada resposta
A GSA define diárias por condado basis="gsa-county" significa que o condado do CEP é uma área da GSA especificamente listada com sua própria tarifa basis="standard" significa que o condado não está listado separadamente, portanto a tarifa federal padrão CONUS se aplica (o próprio padrão da GSA) basis="oconus" significa Alaska, Havai ou um território dos EUA, que são definidos pelo DoD / Departamento de Estado e não fazem parte do conjunto de dados CONUS da GSA (portanto, nenhuma tarifa CONUS é retornada para eles)
Eles são 90% e 110% do Aluguel Justo de Pequena Área do HUD - a faixa dentro da qual uma Autoridade de Habitação Pública local (PHA) estabelece o padrão de pagamento real do Seção 8 / Vouchers de Escolha de Habitação O GovRates retorna o FMR mais essa faixa de 90-110% a PHA local define o padrão exato dentro dela
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.