December 31, 2026 is the last day Google's Perspective API will answer. Jigsaw's own notice puts it plainly: the service "will remain active until December 31, 2026." There's no extension and no migration help from Google.

I went through what happens to the tools built on top of it, and the answer surprised me. Most of them won't crash on January 1. They'll keep accepting comments and quietly stop checking them. (AI-assisted draft; I checked each claim against its source.)

So here's the whole picture, by date, with the steps I'd take if Perspective sits anywhere in my stack.

The dates

From Google's notice at perspectiveapi.com

February 2026: requests closed. Google stopped taking usage and quota increase requests in February. If your traffic grew this year, you're living on whatever quota you already had. The FAQ puts the default at an average of one query per second per project.

Now until December 31: it still works. Nothing has changed in the API itself. Same endpoint, same JSON, still free.…