Is US Autocomplete API down?
Current status, daily uptime history and troubleshooting for the US Autocomplete API (Data Validation).
No, US Autocomplete is up
US Autocomplete answered our last daily check (Oct 24, 2026, 12:25 UTC) in 976 ms with HTTP 200.
Checking US Autocomplete now…
Sending a request from our server.
US Autocomplete API uptime history
- Uptime
- 2 checks so far
- Last check
- Oct 24, 2026, 12:25 UTC
- Response
- 976 ms · HTTP 200
- Last up
- Now
We check US Autocomplete's listed URL (https://www.smarty.com/docs/cloud/us-autocomplete-pro-api) once a day. History started when US Autocomplete was first checked, so new entries show fewer than 30 days.
US Autocomplete API not working for you?
- US Autocomplete needs an API key. A 401 or 403 usually means a missing, expired or mis-sent credential: check whether it belongs in a header or the query string.
- 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.
Data Validation APIs up at their last check
- 1
US Street Address API
Online · 559 msValidate and append data for any US postal address.
- Callable from the browser (CORS)
- HTTPS
apiKeyHTTPSCORS - 2
Attestwire API
Online · 700 msValidate EN 16931 e-invoices: XRechnung, ZUGFeRD, Factur-X, Peppol BIS.
- Callable from the browser (CORS)
- HTTPS
apiKeyHTTPSCORS - 3
Postman Echo API
Online · 2932 msTest api server to receive and return value from HTTP method.
- No API key needed
- HTTPS
No authHTTPSCORS ? - 4
Temsor API
Online · 668 msValidates Turkish national ID, tax number, IBAN, phone, plate and parses addresses.
- Callable from the browser (CORS)
- HTTPS
apiKeyHTTPSCORS - 5
US Extract API
Online · 520 msExtract postal addresses from any text including emails.
- Callable from the browser (CORS)
- HTTPS
apiKeyHTTPSCORS
Compare all US Autocomplete alternatives · APIs down right now
US Autocomplete API status FAQ
Is US Autocomplete API down right now?
US Autocomplete answered our last daily check (Oct 24, 2026, 12:25 UTC) in 976 ms with HTTP 200. This page also runs a live check from our server when you open it, so you can see whether US Autocomplete is responding at this moment.
How do you check whether US Autocomplete API is up?
Once a day our checker requests US Autocomplete's listed URL (https://www.smarty.com/docs/cloud/us-autocomplete-pro-api) 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.
What can I use if US Autocomplete API is down?
Free Data Validation APIs that were up at their last check include US Street Address, Attestwire, Postman Echo. See the full list of US Autocomplete alternatives for a comparison.
Why does US Autocomplete API work for others but not for me?
US Autocomplete needs an API key. A 401 or 403 usually means a missing, expired or mis-sent credential: check whether it belongs in a header or the query string. 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.