November 26, 2025
Hot data, cold takes
Show HN: Yolodex – real-time customer enrichment API
Yolodex promises instant people intel — testers got “nulls” and tough questions
TLDR: Yolodex launched a “real-time” email-to-profile tool using only public info, but early testers saw mostly blank results. The thread turned into a debate over scalability, CAPTCHAs, and whether this beats existing databases like Apollo, with users asking for social URL support and fewer nulls.
Yolodex showed up on Hacker News with a shiny pitch: send an email, get public info back — fast, real-time, and “no shady data brokers.” It’s aimed at marketers and sales teams who want richer customer profiles, plus teased features like company search. The crowd immediately hit the API and the mood swung from curiosity to skeptic mode.
One tester bragged “hit the curl” with ~800ms load and then threw a grenade: how do you beat rate limits and CAPTCHAs at scale if this is truly live? Translation: real-time scraping isn’t cheap, and commenters joked any thin margin gets eaten by rotating proxies. Another asked if it supports social profile URLs, while a classic HN question dropped: is this just another Apollo-style database with a fresh coat of paint?
Then came the plot twist: multiple people reported all-null results. One tried a decade-old Gmail and got everything blank except a name; another said it only guessed gender from their name. Cue memes: “Nullodex,” “real-time to nowhere,” and “Congrats, you discovered my gender.” The big drama: is Yolodex a legitimate live lookup that can scale, or a nice demo that struggles in the wild? The audience wants more signal, less null, and clearer answers on how “real-time” really works.
Key Points
- •Yolodex offers a real-time customer enrichment API using only public information.
- •Integration involves a POST request to the /api/v1/email-enrichment endpoint with a JSON email and Bearer token.
- •Coverage of returned fields varies based on available public data, with percentages referenced per attribute.
- •Use cases include data warehouse enrichment, marketing personalization, and account prioritization.
- •A planned company search feature will provide details like size, revenue, funding, industry, and founders.