Features
Everything you need to query NSRL at scale
Purpose-built for security analysts, SOC teams, and forensic investigators who need to filter known files fast — without maintaining a local copy of the RDS.
1.5B+ NSRL Known Files
The full NIST National Software Reference Library — over 1.5 billion cataloged file records from thousands of publishers — queryable instantly. The same RDS data, without the download.
Known-File Filtering
Separate cataloged OS and software files from everything else in one pass. A match means the file is known — set it aside and focus on the unknown.
Single & Bulk REST API
One clean, Bearer-authenticated JSON API. Look up a single hash in realtime, or submit large bulk jobs. MD5, SHA-1, and SHA-256 in the same request.
Global Edge Network
Lookups are served from the point of presence closest to you, anywhere in the world. Single lookups are edge-cached for sub-second response.
Built for Scale
Submit thousands of hashes per batch and process them asynchronously. Pipe results straight into your SIEM, SOAR, or case-management tooling.
CSV Export
Download bulk results as structured CSV — hash, type, found, file name, size, product, OS, and source. PDF & XLSX export coming soon.
Ready to check your first batch?
Free tier includes 2,500 lookups per month. No credit card required.