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TL;DR

Mickey — the Spanish founder of the unified social media API previously covered as Late (zero-to-40k-month-with-one-marketing-channel-no-social-) — scaled the same product from $40K MRR to $1M ARR in ~10 months, then rebranded off the hard-to-spell getlate.dev to Zernio. The whole machine still runs on two channels: Google Ads from day zero plus bottom-of-funnel SEO. His moat is structural — once a big software integrates his API across all its users’ social accounts, churning means re-migrating every account, so enterprise churn is near zero.

This is the same founder and product as zero-to-40k-month-with-one-marketing-channel-no-social-, one milestone later. Treat it as the $1M-ARR update, not a new company.


The Founder’s Story

  • Ex-VC founder who defected to bootstrapping. Mickey built Ucademy, a Spanish edtech, to ~100 employees on raised capital — then felt “it wasn’t my company anymore… more like I had a job.” He quit, spent a lost year, shipped two small SaaS ($5K and $7–8K MRR), then hit the winner. Now 25.
  • Why bootstrapped: VC means an always-moving growth target, perpetual fundraising, and “never enough.” He kept the VC growth mindset but bootstrapped — “I don’t think it’s incompatible.”

The Product

  • Zernio — a social media API that wraps the official Meta/TikTok/Twitter/YouTube/LinkedIn endpoints so other SaaS can add posting, analytics, comments, DMs, and ads without the weeks-long platform compliance and scaling work.
  • ICP: AI image/video apps that want to let users post generated content but don’t want social to be their core. Most customers (50–60%) are US-based.

The Growth Timeline

  • Ads since day zero — the single thing he says set him apart. Ran Google Ads before profitability, leaning on ad experience from his VC company.
  • ~$10K MRR in first 3 months; growth went exponential as bigger software clients (many connected accounts) signed on.
  • Doubling discipline: they treated growth “mathematically” — double signups → double ad spend → double MRR — month over month until it naturally slowed.
  • Built a team early (around month 3–4): first hire a dev, second a dev-on-support, kept hiring devs, only hired their first growth person ~1 month before the interview. Five people total.

The Two-Channel Playbook

  • Google Ads on exact bottom-of-funnel queries — “meta API,” “TikTok API,” “Twitter API.” Can’t rank organically against Meta’s brand, but can outbid easily. Started everyone on one generic landing page; only later added per-ad landing pages and an agency.
  • SEO as the compounding layer — long-tail + branded keywords. Early mistake: spraying AI-generated blogs at everything; now writes less, higher-quality content aimed at the exact keywords Google says convert in Ads.
  • Product Hunt launch “didn’t really work” — all revenue came from the two paid/organic search channels. No viral moment ever.

The Churn Moat

  • Low-plan solo devs churn at high rates; enterprise churn is near zero because migrating off means disconnecting and re-integrating every one of their users’ social accounts — friction they won’t impose on their own customers.
  • ~150 support conversations/day via Crisp; the whole team does support. Feature requests → “tell Claude to ship it” same-day when small.

The Rebrand

  • getlate.dev was hard to spell and “Late” was un-Googleable (plus a “Later” competitor). Rebranded to Zernio after traction. Technical migration was ~1–2 weeks; recovered SEO fast by following Google’s redirection rules. “More a mental barrier than something difficult.”

If Starting Again

  • Pick a proven, growing market and do it better — don’t reinvent the wheel. Run ads day one. Build a team as fast as possible. “Do less things… improve the [ ] out of one.” Try and iterate fast; throwing things in the trash is fine.

Key Stats

  • ARR: $1M (from $40K MRR → $1M in ~10 months)
  • Churn: under 10% blended; near-zero on enterprise
  • Team: 5 · Support: ~150 convos/day
  • Founder age: 25, building companies since 18