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Registry Lookup
Free, open API for 521M+ company records worldwide
Search and explore over 521 million legal entities across 309 jurisdictions in 200+ countries. Free company registration data, registry numbers, addresses, legal forms, and status information. 10x more free API calls than OpenCorporates and similar data providers.
Hey Product Hunt 👋
Company registry data is weirdly hard to get. Every country runs its own register, in its own format, behind its own paywall — and the one well-known aggregator gives you 500 free API calls a month, then asks for thousands of dollars a year for anything past that.
We thought the foundational layer, which companies exist, where, with what registry number and status, should just be open. So we built Registry Lookup.
It's a free API over 521M+ legal entities across 309 jurisdictions and 244 countries. You get 5,000 calls a month, no credit card — roughly 10x the free quota of OpenCorporates, and the same volume they charge $15,000/year for. Search by name, look up by registry number, browse by jurisdiction, autocomplete. JSON in, JSON out.
The part we're most excited about: there's an MCP server, so you can wire it straight into Claude, ChatGPT, or any agent and just ask: "find all active companies named Tesla in the US," "what's Companies House number 01026167," "how many entities are registered in Germany." Four clicks to connect in the Claude app, one line in Claude Code.
The data is powered by Veridion's global company database; we partnered with them to make the core legal-entity layer available for free. If you ever need to go deeper (firmographics, ownership chains, ESG, supply chain mapping), there's an enterprise path, but the registry layer remains free for everyone.
Grab a key, point your code or your AI assistant at it, and tell us what breaks. We're in the comments all day and genuinely want the feedback. 🙏
interesting timing, was literally about to pay for OpenCorporates this quarter. if the coverage checks out for German + Austrian entities specifically this changes my budget conversation
Took some time to test it and came back with a question: how is this actually free, though? Either the data is stale, or you're selling something on the back end. Which one is it?
Congrats on the launch! The MCP server is the part that got me. Connected it to Claude in like two minutes and asked it to pull every active entity matching a name across the EU. Worked first try. Genuinely didn't expect that.
What's the rate limit structure? Is it 5,000/month hard cap or is there a per-second limit I need to handle in my retry logic?
Looks polished but I've seen "open company data" projects launch and then quietly paywall everything once they get traction. What stops that here? Genuine question, not trying to be negative.
Does the matching handle entity resolution across name variants? e.g. if I search "Siemens" do I get the parent plus subsidiaries, or do I need to query each legal name separately?
Really impressive. As an SEO guy, I'm very interested in how much traffic you can achieve
oh wow, this is awesome! so much better than getting all the european company data myself!
As someone who’s spent way too much time cleaning company data, getting consistent registry information across countries is way harder than most people realize.
Your free tier is insanely generous. How do you guys afford to offer that?
About Registry Lookup on Product Hunt
“Free, open API for 521M+ company records worldwide ”
Registry Lookup was submitted on Product Hunt and earned 32 upvotes and 15 comments, placing #23 on the daily leaderboard. Search and explore over 521 million legal entities across 309 jurisdictions in 200+ countries. Free company registration data, registry numbers, addresses, legal forms, and status information. 10x more free API calls than OpenCorporates and similar data providers.
Registry Lookup was featured in API (98.4k followers), Legal (6.2k followers) and Developer Tools (515.5k followers) on Product Hunt. Together, these topics include over 89.2k products, making this a competitive space to launch in.
Who hunted Registry Lookup?
Registry Lookup was hunted by Auras Tanase. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
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Auras Tanase