Perspective API

Free toxicity scoring for comments and conversation, from Jigsaw.

Made by GoogleText and language analysis

About Perspective API

The Perspective API site describes Perspective as a tool that has grown from an experimental tool into a solution for publishers and platforms. The page states that Perspective API is sunsetting, and the service will remain active until December 31, 2026.

The page says the API will no longer be in service after 2026 and that direct migration support will not be offered. Usage requests will be addressed until February 2026. The page states that AI capabilities have evolved and that there is now less demand for a standalone tool in this area.

Drafted from perspectiveapi.com · not yet confirmed by Google

How it works

Perspective is Jigsaw's free API that scores text for toxicity and related attributes: severe toxicity, insult, profanity, identity attack, threat, and sexually explicit, in a growing list of languages. You send a comment, you get a probability per attribute. Publishers use it to rank comments, warn users before posting, or route to moderators.

It's free, it's fast, and it's been studied to death, including its biases on identity terms, which Jigsaw has worked to reduce. It's the default starting point for text toxicity.