Ground Truth For Smarter B2B
Company data, IP address resolution, and industry classification APIs. Free endpoints are available, with advanced endpoints consuming credits per request.
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Works with Claude, OpenAI, Gemini, Codex, Cursor, Lovable, and Replit.
Company Lookup (Premium)
Firmographic profiles for companies by domain or name. Response includes industry classifications (NAICS/SIC), employee headcount, revenue range, location, social handles, and more.
- Resolve by domain or company name
- Employee and revenue ranges, for private and public companies
- Industry taxonomy includes codes, sectors and descriptions
- Social handles: LinkedIn, Twitter, YouTube
IP Address Detection (Free)
Detect the IP address at the data layer (DOM). Enables browser-level insight and is often paired with the IP Address Unmasking API.
- Detect IP address at page load
- Call directly from browser DOM or server-side
- Returns IPv4 as JSON — ready to inject into IP Unmasking API
- Free — no credits consumed
IP Address Unmasking (Premium)
Resolve any IP address to the company behind it. Returns the same firmographic payload as Company Lookup.
- IP address to company identification
- Rich firmographic profile schema
- Business and ISP filters included
- 100% coverage across entire IPv4 network
Domain Parent-Child (Free)
Resolve any domain to its canonical parent. Pass a redirect domain to find its primary, or pass a parent domain to discover all known child redirects.
- Vanity and redirect domains mapped to canonical parent
- All known child and redirect domains returned
- Pass any domain — primary, alias, or subdomain
- Free — no credits consumed
IP Address Ranges (Premium)
Pass a domain and receive every IP range associated with that company, with a geo-level payload for each range including country, region, and city.
- Every IP range owned or leased by the company
- Geo payload per range: country, region, and city
- Range and total IP count included
- Pair with IP Unmasking to resolve visitor IPs back to company
Industry Classification (Free)
Resolve any NAICS or SIC code to its full industry description. Pass the classification type and a numeric code to receive the matching industry name, sector, and standard vintage.
- Resolve NAICS or SIC codes to full industry names
- Sector, sub-sector, and industry description returned
- NAICS-to-SIC crosswalk included on every result
- Free — no credits consumed
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