Why We Built 3Min API — A Story That Starts with a Phone Call

Hi, I'm Chae-won. I work on developer experience at 3Min API.

Before I got here, I spent years building backends for other people. And there was one type of request I kept running into — so often that I could almost predict the conversation before it started.

"We don't have a dev team, but our client wants to send us sales data via API. Can you help?"

It usually came from a small e-commerce company. Or a logistics startup with five employees. Or a marketing agency that had just landed a bigger partner. The details changed, but the shape of the problem was always the same.

They didn't have a backend. They didn't have anyone who could write one. But their business partner — often a much larger company — needed a way to push data to them programmatically. An Excel attachment over email wasn't going to cut it anymore.

The Cycle

So we'd spin up a quick backend. Something simple — receive JSON, store it, maybe show it in a basic admin page. We'd deploy it, hand over the API docs, and move on.

Then a few months later, the phone would ring again.

"We have a new client. They want to integrate too, but the data format is a bit different."

Back to square one. New endpoint. New schema. New admin page. Another round of testing. Another deployment. More invoices.

Over time, the data from these one-off projects would start to drift. The first integration was on one server, the second on another. Nobody had a unified view of what was coming in. Test environments were a mess — or didn't exist at all. And sometimes, after all that effort, the integration would barely get used. A few hundred calls a month. Hardly worth the cost.

I watched this pattern repeat for years. Not just with one client, but with dozens. The same pain, the same waste, the same cycle.

Why It Matters More Than You Think

In a market that moves fast, this kind of friction is more than an inconvenience — it's a real disadvantage. While you're spending weeks setting up a backend for one integration, your competitor is already live and collecting data.

Small teams can't afford to burn time on infrastructure they'll need to rebuild every time a new partner comes along. They need to move quickly, prove the business case, and then invest in something more permanent once revenue justifies it.

That's a completely rational strategy: integrate fast, learn fast, and scale when you're ready. But the tools available at the time didn't really support that approach. Everything assumed you had a dev team. Or at least someone who could maintain a server.

What We Thought Was Missing

We kept coming back to the same question: what if there was a way to set up a working API endpoint in minutes, not weeks?

Most modern systems communicate in JSON. That's just how the world works now. So we figured: if the data format is JSON anyway, why force people to define a relational database schema upfront? Let them describe the shape of the data they expect, and start receiving it right away. Something closer to a NoSQL approach — flexible, fast to set up, and easy to iterate on.

But receiving data is only half the story. Many of these small teams wanted to route the incoming data somewhere — into their own database, a spreadsheet, a CRM, whatever tool they were already using. So we added webhooks. When data arrives, it gets forwarded to wherever you need it, automatically.

The Things You Don't Think About (Until Something Breaks)

Once you're running in production, reliability becomes everything. Data can't just disappear because a server had a bad day. So we built in retry logic and a recovery mechanism — if something goes wrong, your data is preserved for up to 56 hours, giving you time to fix the issue without losing anything.

We also added failure alerts. If an integration stops responding, or a webhook starts failing, you'll know about it right away. This sounds like a small thing, but for a team without dedicated ops engineers, it can be the difference between catching a problem in minutes and discovering it days later when a partner calls to complain.

And then there are the quieter needs. Statistics that show you how your integrations are performing over time — how many calls, what the trends look like, whether usage is growing. An archive feature that lets you download your data as JSONL files for offline analysis or migration. These aren't flashy features, but they're the kind of thing that makes a real difference when you're trying to understand your business.

Where We Are Now

These days, when a client comes to us with that familiar request — "We need an API, but we don't have a dev team" — we point them to 3Min API first. Not as a sales pitch, but because we've been on the other side of that conversation enough times to know the pain.

It doesn't solve every problem. If you need complex business logic or deeply customized workflows, you'll eventually outgrow it. That's fine — that's the point. Start with something that works today, and build from there when you're ready.

If any of this sounds familiar — if you've been through the same cycle of one-off backends and scattered data — it might be worth taking a look. We built it because we needed it. Maybe you do too.

Oh, and if you're wondering whether 3Min API could work for your situation — try asking ChatGPT, Gemini, or Claude. Just share https://3minapi.com/llms-full.txt along with your question, and they'll help you figure it out.