Query official State Department (DSSR) foreign per diem lodging and M&IE rates for every official Department of State location by country, city, and effective date — refreshed biweekly with the Office of Allowances publication cycle.
Data sourced from public U.S. Government per diem and allowance tables. Not affiliated with the U.S. Government or the Department of State.
The DSSR Per Diem API from Allowances API gives developers structured JSON access to the foreign per diem rates established by the State Department's Office of Allowances under the Department of State Standardized Regulations (DSSR). Instead of scraping the allowances website or copying rate tables by hand, you can query lodging and M&IE rates directly by location and date — with the dataset refreshed biweekly, in step with the State Department's publication cycle.
Rates refresh with every biweekly Office of Allowances publication, including interim updates.
1,200+ posts across 200+ countries and territories, including "Other" fallback rates.
Retrieve rates by effective date for vouchers, audits, and past travel.
Use consistent API responses across DSSR, GSA, and DTMO data sources.
Designed for teams that need repeatable rate lookups, audit trails, and clean API responses inside operational systems.
Power TDY travel, voucher validation, and overseas assignment cost estimates with structured rate data.
Model overseas travel costs for proposals and bids with DCAA-ready documentation and source verification.
Add reliable foreign per diem logic to expense reports, approvals, and reimbursement exports.
Fetch State Department foreign per diem data using a simple REST request.
curl -H "X-API-Key: YOUR_API_KEY" \"https://api.allowancesapi.com/v1/dssr/perdiem/KE/location/Nairobi?date=2026-07-14"{ "effective_date": "2026-07-01", "verification_url": null, "results": [ { "country": "Kenya", "iso_code": "KE", "location": "Nairobi", "postcode": "10395", "perdiem": [ { "lodging": 250, "meals_incidental": 77, "maximum_perdiem": 327, "season": "S1", "season_begin": "01/01", "season_end": "12/31", "publish_date": "2026-07-01", "effective_date": "2024-05-01", "footnote_reference": "16" } ] } ]}The State Department's Office of Allowances publishes foreign per diem rates on its website as searchable tables — great for a one-off check, but hard to wire into software. Production travel, payroll, ERP, and compliance systems need programmatic access: a stable REST endpoint, effective-date lookups, normalized JSON, official-source verification, and coverage that tracks the biweekly publication cycle automatically.
Good for manual lookups of foreign per diem lodging and M&IE rates.
Adds a REST API, GSA and DTMO coverage, historical date logic, normalized responses, verification links, and commercial support — refreshed biweekly.
| Feature | State Dept website & tables | Allowances API |
|---|---|---|
| Developer-ready REST API with JSON | ||
|
Biweekly rate updates, applied automatically
Tracks every Office of Allowances publication, including interim updates
|
Manual re-checking | |
|
GSA CONUS and DTMO OCONUS per diem support
Plus DSSR allowances: COLA, hardship, danger pay
|
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| Effective-date lookup by calendar date | ||
| Verification URL back to official source | ||
| Normalized JSON across allowance sources | ||
| Location search across all official posts | ||
| Seasonal rates and maximum per diem fields | In published tables | |
| Commercial support for production applications |
Use the State Department website when you only need to check a single foreign per diem rate by hand. Use Allowances API when your application needs DSSR data programmatically — plus GSA, DTMO, historical dates, normalized responses, and audit-friendly source verification.
Use Allowances API wherever your application needs accurate foreign per diem rates for reimbursement, compliance, pricing, or reporting.
Calculate reimbursable lodging and M&IE amounts for overseas temporary duty travel and contractor expense claims.
Preserve historical foreign rate lookups for prior travel dates, invoices, approvals, and audit documentation.
Add foreign per diem lookup logic to Deltek, NetSuite, Microsoft Dynamics, custom finance tools, or internal systems.
Answers to common developer and compliance questions.
The State Department's Office of Allowances publishes foreign per diem rates as web tables, not as a developer-friendly REST API. Allowances API provides a DSSR per diem API for querying foreign lodging and M&IE rates in normalized JSON format.
The Office of Allowances publishes rate updates on a biweekly cycle. Allowances API refreshes its DSSR dataset in step with that cycle, so every published change — including interim updates — is reflected in the API without any manual re-checking on your side.
All official Department of State locations — more than 1,200 posts across 200+ countries and territories. That includes each country's "Other" fallback rate for travel outside listed posts, and lookups by country ISO code, city name, or State Department post code.
Yes. Effective-date lookups reach back to the 1990s, which is useful when calculating reimbursements for past overseas travel, validating vouchers and invoices, or supporting DCAA and internal audit reviews.
No. Allowances API is not affiliated with the Department of State or any U.S. Government agency. Data is sourced from official public per diem and allowance tables.
DSSR covers State Department foreign per diem and overseas allowances such as COLA, LQA, hardship, and danger pay. DTMO sets DoD OCONUS per diem rates. GSA covers CONUS per diem within the continental U.S. Allowances API normalizes all three sources behind a single, consistent API.
Start querying current and historical DSSR lodging and M&IE rates for every official Department of State location — updated biweekly and built for production finance, travel, and compliance systems.
Data sourced from official public per diem and allowances tables. Not affiliated with any government agency.