Proofreader API

The Proofreader API is a JavaScript API that proofreads input text with suggested corrections, backed by an AI language model. This API exposes high-level functionality to help web developers perform real-time proofreading and offers two specific features: error correction , and error labeling (identifying the error type like spelling or grammar). Developers can use this API to proofread user messages in chat applications , help polish email drafting , catch errors during note-taking , or provide high-quality interactive proofreading feedback when writing documents.
Trial Expiration Date

May 19, 2026