Website visit
Warm AI API
simultaneous fan-out
Provider A
Provider B
Provider C
Provider D
Provider E
Provider A
Provider B
Provider D
Provider E
Provider C
confidence scoring
AI Best-Fit Engine
One call. Full picture.
Send an IP. Get back classification, company match, and person-level data where available.
response.json
{
"ip": "193.168.232.1",
"identified": true,
"traffic_type": "business",
"company_name": "Acme Inc",
"domain": "acme.com",
"confidence": 91,
"confidence_level": "confirmed",
"country_code": "US"
}See what your traffic actually is.
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Frequently Asked Questions
What is WarmAPI?
WarmAPI is a multi-provider website visitor identification API. It queries multiple IP-to-company identification providers simultaneously and uses AI best-fit aggregation to return the single highest-confidence match for each visitor. One API call replaces multiple vendor integrations.
How is WarmAPI different from a single identification provider?
No single provider identifies more than 30-40% of identifiable website traffic. Each has different IP databases, cookie pools, and data partnerships. WarmAPI queries all of them on every visit and uses AI confidence scoring to select the best match.
Does WarmAPI provide person-level identification?
Yes. For US and Canadian visitors, WarmAPI returns person-level data including LinkedIn profile IDs. For UK and European visitors, company-level identification is enriched to the individual contact through compliant data partners.
How does the AI best-fit engine work?
When multiple providers return a match for the same visitor, the data often conflicts. The best-fit engine evaluates every response on confidence, completeness, and consistency, then returns the single highest-quality result. No manual deduplication.
Is WarmAPI GDPR compliant?
Yes. EU/UK identification operates at the company level first, with person-level enrichment handled through compliant data partners.
What does integration look like?
Standard REST API with JSON responses and webhook support. Send a visitor's IP to one endpoint, get identification data back. Most teams are live within an afternoon. Docs at docs.warmai.uk.
How does WarmAPI compare to Clearbit Reveal?
Clearbit Reveal is a single-provider reverse IP lookup API (now part of HubSpot). WarmAPI queries multiple providers simultaneously and uses AI to pick the best match. Broader coverage, no platform lock-in.
What is the difference between the Warm AI dashboard and WarmAPI?
The Warm AI dashboard (getwarmai.com) is a web app for teams who want a ready-made interface to see visitor data — similar to Lead Forensics. WarmAPI (getwarmai.com/IP) is the underlying API for developers and platforms who want to integrate multi-provider identification into their own products.
What does WarmAPI cost?
Usage-based pricing. Pay per identified visitor. No long-term contracts. No minimum commitments.