I Was Juggling 5 Domain APIs. So I Built One to Replace Them All

Last year I needed full domain intelligence for a lead qualification tool. Sounds straightforward: get WHOIS data, check DNS records, verify SSL, detect the tech stack. Here's what I ended up wiring together: WhoisXML API — WHOIS/RDAP data SecurityTrails — DNS records SSL Labs — SSL analysis (free but 60s+ per query) BuiltWith — tech stack detection Four APIs. Four API keys. Four SDKs. Four completely different response formats. And the worst part? Each one returned a different JSON structure. WHOIS data came as nested objects, DNS as arrays, SSL Labs had its own grading system, BuiltWith returned a tree of technology categories. My "simple" lead enrichment function ballooned to 400 lines of normalization code — and that was before I added any actual business logic. The fragmentation problem This isn't unique to my use case. If you're building: A sales tool that qualifies leads by their domain A security dashboard that monitors certificate expiration An SEO platform that analyzes compe