Sina Cloud

» see sae.sina.com.cn as it lived, on the wayback machine

~ the goodbye ~

Sina started building it internally in August 2009 and put the first alpha out on 3 November of the same year under the name Sina App Engine. The reference point was obvious and Sina did not pretend otherwise: Google App Engine had opened its doors the previous year, and SAE was the same proposition rebuilt for a market where Google's version was about to become unreachable. You uploaded code, Sina ran it, and you never touched a server. For Chinese developers in 2009 that was new.

It took the server languages of the day, PHP above all, with Java and Python alongside, and it shipped the pieces you need around them: a managed database, distributed storage, a cache layer, a queue. The billing is the part people remember. Instead of pricing in yuan, SAE denominated everything in 云豆, cloud beans. Your application's running costs came out of a free allowance of beans that Sina granted every month, and anything past the basics meant buying paid beans with real money.

The service widened over the years into enterprise hosting and container work and dropped the App Engine name for plain Sina Cloud, and it kept running long after the Chinese cloud market had been carved up between Alibaba and Tencent. Seventeen years is a very long life for a developer platform. Heroku's free tier, the nearest Western thing in spirit, lasted eleven.

In March 2026 Sina posted the notice. New registrations and cloud bean top-ups stopped immediately. Everything would go off at 24:00 on 16 September 2026, and the company was explicit about what came next: every byte of user data deleted from the servers with no backups retained, and no responsibility accepted for whatever a customer failed to move in the six months of warning. The Chinese coverage called it another tear in the eye of the internet and counted the seventeen years out loud.

~ the chronicle ~

~ the shape of a six month exit ~

A platform shutdown has two clocks. One is the date the service stops, and the other is the date it stops accepting anything new, which is always earlier and is the real end for the business. Sina ran both on the same announcement in March, which meant SAE spent its final half year as a read-and-leave service: existing apps kept serving, nobody could start one, and the beans in your account could not be refilled.

That is the standard way to close a hosting business. Six months is also a short runway for anyone who had put a production system on it in 2012 and stopped thinking about where it lived, which describes a good share of what was still running there.

~ what a cloud bean was ~

The unit deserves its own paragraph. A cloud bean was Sina's metering token, spent against compute and storage as your app consumed them, with a monthly free grant so that a student project cost nothing at all. Developers topped up with cash when the grant ran out. The effect was that you watched a balance go down during the month instead of reading a bill at the end of it.

I am a computer engineer and I lived through this era of the industry from the other side of a firewall. The platforms I deployed to had English docs and dollar pricing. Sina App Engine was a whole parallel developer economy running on the same ideas in the same years, with its own forums, its own quota pages, its own currency and its own conference talks, and almost none of it was legible to anyone who did not read Chinese. The Chinese internet of that decade was not a copy of the Western one. It was a second one, with its own dead.

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