Launched this week
1LookUp
Stop bad data before it enters your system
13 followers
Stop bad data before it enters your system
13 followers
Lookup is one universal endpoint that validates phone numbers, emails, IP addresses, and domains — automatically detecting the type and returning enriched results in under 300ms. No stitching together multiple APIs. Just send a query and get back carrier data, MX records, geolocation, VPN detection, and more. Built for developers who can't afford bad data in their systems. Starts at $99/mo.
Preventing bad data before it spreads usually creates much more value than cleaning it later. Curious where you've seen the biggest impact so far.
@aryan787544 Exactly the philosophy we built around. The clearest win so far has been reducing fake signups. One team using it saw a real drop in fraudulent accounts just by validating email + phone at the point of entry instead of catching them downstream. Prevention is just way cheaper than cleanup, both in engineering time and in trust with users.
@massimo_drago_cremascoli Really appreciate the thoughtful reply.
The interesting part to me is that products like this often start as a validation API but can end up becoming a trust layer across an entire business. That positioning shift can change who ultimately buys it.
I've got a couple of thoughts on that evolution that might be useful. What's the best email to send them to?
@aryan787544 Really appreciate that — happy to hear your thoughts. You can reach me at cremascolimassimo051@gmail.com, would genuinely love to hear how you see that positioning evolving.
@massimo_drago_cremascoli Thanks! I’ve just sent it over.
Looking forward to hearing your thoughts whenever you have a chance.
Spent 10 minutes hitting it with random phone numbers and emails and the auto-detection actually nailed it every time. Response time is honestly impressive for under 300ms.
@sebahatyoldar Thanks so much for testing it out, Sebahat! Really glad the auto-detection held up across different formats — that was one of the trickiest parts to get right. And yeah, keeping response times snappy was a big priority for us since nobody wants to wait on a lookup mid-workflow. Appreciate you taking the time
Finally tried it on a sketchy signup and it nailed the phone carrier and flagged the IP instantly. Love that one endpoint handles all four types without messing with multiple API keys.
@elanurince86376 Indeed! It took a lot of time to make the coding but seeing feedback and people actually enjoying the app has helped me a lot. If you can please push my app to other people you might know
Handy having one endpoint that figures out what you're throwing at it instead of wiring up separate validators. Carrier data and VPN detection came back fast in my quick test.
@mahirzatizdkuj Thank you for the great words and please push my app to other people you might know
The unified endpoint idea is genuinely useful, but having some kind of batch lookup option would be a game changer for cleaning up an existing user database. Right now it seems like I'd have to ping it one record at a time, which gets expensive and slow for tens of thousands of rows. A simple CSV upload or bulk API endpoint with a flat rate per record would make this way more practical for the migration use case.
@melahat70776 Yeah your idea is great becuase it saves a ton of time and might give you more details. I will certainly include it in my next update
Honestly the auto-detection thing is pretty slick, sent a mixed batch through and got back carrier plus geo data without having to flag anything myself. Speed was solid too, felt basically instant.