GreyNoise alternatives

3 tools to consider instead of GreyNoise, shown against it.

GreyNoise Shodan Censys Google VirusTotal
Vendor GreyNoise Intelligence Shodan Censys Google
Pricing model Free tier + paid plans Subscription Quote only Free tier + paid plans
Free tier Yes Yes Yes Yes
Deployment Cloud Cloud Cloud Cloud
Open source No No No No
Best for SOC teams that want to suppress routine internet scanning noise and catch early exploitation of specific CVEs. Security researchers and teams tracking their own organization's internet-exposed devices. Security teams that need attack-surface discovery plus adversary-infrastructure tracking from the same scan data. Analysts wanting a fast, multi-engine second opinion on a suspicious file or URL, with the caveat that public submissions are shared with the community.
Pricing

A published Free tier (data refreshed every 8 hours, 10-day lookback, limited alerts/searches) plus Standard, Advanced, and Elite tiers that require a sales quote.

Free $0
Standard contact sales
Advanced contact sales
Elite contact sales

Prices read from the vendor's own page on September 21, 2026. Vendors change prices; check the source before you budget.

Published self-serve tiers: a one-time Membership unlock, then monthly Freelancer, Small Business, and Corporate plans, plus custom Enterprise.

Membership $49 one-time
Freelancer $69/month
Small Business $359/month
Corporate $1,099/month

Prices read from the vendor's own page on September 21, 2026. Vendors change prices; check the source before you budget.

Named self-serve tiers (Core, Adversary Investigation, Security Operations) are published with feature limits, but dollar prices require a sales quote; a free account with basic search is available.

Core contact sales
Adversary Investigation contact sales
Security Operations contact sales

Prices read from the vendor's own page on September 21, 2026. Vendors change prices; check the source before you budget.

A free Public API with rate limits is open to anyone; Premium, Enterprise, and Intelligence tiers add higher quotas, private submissions, and enrichment but require a sales quote.

Pricing has not been verified yet — see the vendor's site.

Features
  • Classification of internet background scanning noise
  • Early active-exploitation detection, sometimes pre-disclosure
  • Compromised-asset detection via scanning/beaconing signals, no agent required
  • Alert enrichment with intent, CVE, and attacker-tooling context
  • Dynamic, configurable IP blocklists
  • Selectable Triage/Investigate/Hunt intelligence modules
  • C2 detection and vulnerability-prioritization add-ons
  • Continuous internet-wide crawling and indexing
  • Search by service, banner, geography, and organization
  • Shodan Monitor for real-time exposure alerts on owned assets
  • REST API for programmatic access
  • Browser extensions for on-site exposure checks
  • Device and industrial control system discovery
  • Continuous internet-wide scanning and indexing
  • Attack Surface Management for unknown/shadow-IT exposure
  • Adversary infrastructure tracking and investigation
  • Critical-infrastructure and ICS exposure monitoring
  • Enrichment APIs for SIEM/SOAR integration
  • Certificate and service metadata search
  • Multi-engine antivirus and blocklist scanning of files, URLs, domains, and IPs
  • Consolidated vendor-by-vendor verdict reports
  • Relationship graphing between files, domains, and IPs
  • Behavioral sandbox execution reports
  • Free Public API with rate limits
  • Premium/Enterprise API for higher-volume and private use

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