Is US Per Diem API down?
Current status, daily uptime history and troubleshooting for the US Per Diem API (Government).
No, US Per Diem is up
US Per Diem answered our last daily check (Nov 15, 2026, 13:58 UTC) in 660 ms with HTTP 200.
Checking US Per Diem now…
Sending a request from our server.
US Per Diem API uptime history
- Uptime
- 100% of 10 checks
- Last check
- Nov 15, 2026, 13:58 UTC
- Response
- 660 ms · HTTP 200
- Last up
- Now
We check US Per Diem's listed URL (https://us-per-diem-api.narwhalapis.workers.dev) once a day. History started when US Per Diem was first checked, so new entries show fewer than 30 days.
US Per Diem API not working for you?
- A 429 response means you're being rate-limited. Slow down, cache responses, and respect any Retry-After header.
- If it works from one network but not another, check firewalls, VPNs and regional blocks.
- Check the provider's documentation, status page or social accounts for planned maintenance or a changed endpoint.
Government APIs up at their last check
- 1

EU VAT Rates by Commodity Code API
Online · 440 msEU VAT rates mapped to CN and CPA commodity codes, all 27 member states.
- No API key needed
- 100% uptime (30 days)
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS - 2
MORVS API
Online · 1121 msSource-linked US regulatory and public records: SEC filings, enforcement actions, recalls.
- No API key needed
- 100% uptime (30 days)
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS - 3
nu:legal Deutsches Recht API
Online · 613 msGerman federal and state statutes and 640,000 court decisions as JSON, with citation links.
- No API key needed
- 100% uptime (30 days)
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS - 4
Tollmint API
Online · 1163 msAdvertising, subscription, AI-disclosure and accessibility rules across the US, EU and UK.
- No API key needed
- 100% uptime (30 days)
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS - 5

Veridion API
Online · 892 msUS congressional stock-trade disclosures and the President's OGE reports, linked to each filing.
- No API key needed
- 100% uptime (30 days)
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
US Per Diem API status FAQ
Is US Per Diem API down right now?
US Per Diem answered our last daily check (Nov 15, 2026, 13:58 UTC) in 660 ms with HTTP 200. This page also runs a live check from our server when you open it, so you can see whether US Per Diem is responding at this moment.
How do you check whether US Per Diem API is up?
Once a day our checker requests US Per Diem's listed URL (https://us-per-diem-api.narwhalapis.workers.dev) and records whether it answers within 15 seconds. Answers like 401 (needs a key), 403 (blocks bots) or 429 (rate-limited) count as up, because the server responded. The listed URL is often the documentation page, so an API endpoint can occasionally fail while its docs stay up.
How reliable is US Per Diem API?
US Per Diem answered 100% of our last 10 daily checks. Above 99% is excellent for a free API; below 95% means you should cache responses and keep a fallback ready.
What can I use if US Per Diem API is down?
Free Government APIs that were up at their last check include EU VAT Rates by Commodity Code, MORVS, nu:legal Deutsches Recht. See the full list of US Per Diem alternatives for a comparison.
Why does US Per Diem API work for others but not for me?
A 429 response means you're being rate-limited. Slow down, cache responses, and respect any Retry-After header. If it works from one network but not another, check firewalls, VPNs and regional blocks. Check the provider's documentation, status page or social accounts for planned maintenance or a changed endpoint.