Constella Threat Intelligence Data Signals API is a commercial threat intel feeds solution by Constella Intelligence. IPsum is a free threat intel feeds solution. Features, integrations, deployment and the company behind each one, side by side.
API providing access to compromised identity data and threat signals
Daily feed of bad IPs with blacklist hit scores for cybersecurity professionals to stay informed about malicious IP addresses.
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Based on what each listing shows: deployment, company size, price and open source.
IPsum fits if you are a startup or a small business, you need a free product and you want an open-source product.
Common questions when comparing Constella Threat Intelligence Data Signals API vs IPsum for threat intel feeds.
Constella Threat Intelligence Data Signals API: API providing access to compromised identity data and threat signals. Built by Constella Intelligence.
IPsum: Daily feed of bad IPs with blacklist hit scores for cybersecurity professionals to stay informed about malicious IP addresses.
The table above shows where their features, integrations, deployment and company size fit differ.
Constella Threat Intelligence Data Signals API is made by Constella Intelligence. IPsum is open-source with 2,213 GitHub stars. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.
Often, yes. Constella Threat Intelligence Data Signals API and IPsum are both Threat Intel Feeds products. Key differences: Constella Threat Intelligence Data Signals API is Commercial while IPsum is Free, IPsum is open-source. Use the table above to see where features, deployment and company size fit differ.
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Updated 2026-11-01
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