Is Close Knit API down?
Current status, daily uptime history and troubleshooting for the Close Knit API (Open Data).
No, Close Knit is up
Close Knit answered our last daily check (Nov 15, 2026, 13:58 UTC) in 1496 ms with HTTP 200.
Checking Close Knit now…
Sending a request from our server.
Close Knit API uptime history
- Uptime
- 100% of 10 checks
- Last check
- Nov 15, 2026, 13:58 UTC
- Response
- 1496 ms · HTTP 200
- Last up
- Now
We check Close Knit's listed URL (https://getcloseknit.com/openapi.json) once a day. History started when Close Knit was first checked, so new entries show fewer than 30 days.
Close Knit API not working for you?
- A 429 response means you're being rate-limited. Slow down, cache responses, and respect any Retry-After header.
- Close Knit doesn't send CORS headers, so browsers block calls made directly from a web page. Call it from your server instead.
- 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.
Open Data APIs up at their last check
- 1
Big Data Explained API
Online · 1065 msCloud data warehouse list prices, read daily from AWS and Azure pricing APIs, with price history.
- No API key needed
- 100% uptime (30 days)
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS - 2
BTU Graph API
Online · 1008 msSource-reviewed energy company knowledge graph and directory exports.
- No API key needed
- 100% uptime (30 days)
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS - 3

Caliber API
Online · 1185 msWhich red dot optics fit which pistols, each fit cited to a maker or retailer.
- No API key needed
- 100% uptime (30 days)
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS - 4

CollegeCalcAI API
Online · 969 msUS college admission chance estimates and admissions data for 1,100+ colleges.
- No API key needed
- 100% uptime (30 days)
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS - 5
EOSL API
Online · 963 msHardware end-of-sale and end-of-service-life dates by part number, source-linked.
- No API key needed
- 100% uptime (30 days)
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
Close Knit API status FAQ
Is Close Knit API down right now?
Close Knit answered our last daily check (Nov 15, 2026, 13:58 UTC) in 1496 ms with HTTP 200. This page also runs a live check from our server when you open it, so you can see whether Close Knit is responding at this moment.
How do you check whether Close Knit API is up?
Once a day our checker requests Close Knit's listed URL (https://getcloseknit.com/openapi.json) 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 Close Knit API?
Close Knit 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 Close Knit API is down?
Free Open Data APIs that were up at their last check include Big Data Explained, BTU Graph, Caliber. See the full list of Close Knit alternatives for a comparison.
Why does Close Knit 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. Close Knit doesn't send CORS headers, so browsers block calls made directly from a web page. Call it from your server instead. If it works from one network but not another, check firewalls, VPNs and regional blocks.