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'
注册后,每个开发者都会被分配一个个人 API 访问密钥,这是一个唯一的字母和数字组合,用于访问我们的 API 端点。要使用 GovRates Per Diem and Fair Market Rent API 进行身份验证,只需在 Authorization 标头中包含您的 bearer token。
| 标头 | 描述 |
|---|---|
授权
|
必需
应为 Bearer access_key. 订阅后,请查看上方的"您的 API 访问密钥"。
|
无长期承诺。随时升级、降级或取消。 免费试用包括最多 50 个请求。
(年度计费可节省 2 个月 🎉)
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."
}
不 政府费率是不官方的 也不与 GSA 或 HUD 有关联或被认可 它是基于公共领域的美国联邦数据构建的 包括 GSA 的 2026 财年日常津贴主费率和 HUD 的 2026 财年公平市场租金 / 小地区 FMR 通过邮政编码归一化并联接 每个响应中包含来源归属
GSA按县设置每日报销标准 basis="gsa-county"表示该邮政编码的县是一个具体列出的GSA区域,并有其自己的费率 basis="standard"表示该县没有单独列出,因此适用联邦标准CONUS费率(GSA自己的默认值) basis="oconus"表示阿拉斯加 夏威夷或美国领土,这些由国防部/国务院设定,并不包含在GSA CONUS数据集中(因此没有返回CONUS费率)
它们是HUD的90%和110%的小区域公平市场租金——地方公共住房管理局(PHA)设定实际第8部分/住房选择券支付标准的范围。GovRates返回FMR加上这个90-110%的范围;地方PHA在其中设定确切的标准
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.