Is National Vulnerability Database API down?
Current status, daily uptime history and troubleshooting for the National Vulnerability Database API (Security).
No, National Vulnerability Database is up
National Vulnerability Database answered our last daily check (Oct 24, 2026, 12:25 UTC) in 1268 ms with HTTP 200.
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Sending a request from our server.
National Vulnerability Database API uptime history
- Uptime
- 2 checks so far
- Last check
- Oct 24, 2026, 12:25 UTC
- Response
- 1268 ms · HTTP 200
- Last up
- Now
We check National Vulnerability Database's listed URL (https://nvd.nist.gov/vuln/Data-Feeds/JSON-feed-changelog) once a day. History started when National Vulnerability Database was first checked, so new entries show fewer than 30 days.
National Vulnerability Database 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 calls fail only in the browser with a CORS error, National Vulnerability Database may not allow cross-origin requests. 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.
Security APIs up at their last check
- 1
Presend API
Online · 399 msSecurity and developer utility API -- malware, vulnerability, and domain checks, no signup.
- No API key needed
- Fast: 399 ms response
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS - 2
IPGuardian API
Online · 940 msCheck IP addresses against 140+ public threat intelligence blocklists.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS - 3
IPLogs API
Online · 762 msFree VPN, proxy, Tor and datacenter IP detection. 13 sources, active probing.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS - 4
OSV API
Online · 608 msOpen source vulnerability database and distributed triage infrastructure.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS - 5
Passwordinator API
Online · 730 msGenerate random passwords of varying complexities.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
Compare all National Vulnerability Database alternatives · APIs down right now
National Vulnerability Database API status FAQ
Is National Vulnerability Database API down right now?
National Vulnerability Database answered our last daily check (Oct 24, 2026, 12:25 UTC) in 1268 ms with HTTP 200. This page also runs a live check from our server when you open it, so you can see whether National Vulnerability Database is responding at this moment.
How do you check whether National Vulnerability Database API is up?
Once a day our checker requests National Vulnerability Database's listed URL (https://nvd.nist.gov/vuln/Data-Feeds/JSON-feed-changelog) 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 National Vulnerability Database API is down?
Free Security APIs that were up at their last check include Presend, IPGuardian, IPLogs. See the full list of National Vulnerability Database alternatives for a comparison.
Why does National Vulnerability Database 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 calls fail only in the browser with a CORS error, National Vulnerability Database may not allow cross-origin requests. Call it from your server instead. If it works from one network but not another, check firewalls, VPNs and regional blocks.