About GitBook

GitBook is a commercial documentation platform used to publish product docs, help centers and internal knowledge. The vendor now describes it as a knowledge layer for AI, that links documentation with the product and its users, responds to questions, and flags where knowledge is missing or out of date.

Its approach combines a visual editor with docs-as-code support, so teams can write in the app or sync with Git repositories, such as through a GitHub sign-up. AI insights point out gaps and outdated content, and the vendor says it can then help fix them. A GitBook MCP server is listed as new, and the site offers search, an Ask feature for questions, an API, a help center, a changelog and getting-started guides.

GitBook is hosted, proprietary software that can be started for free and has a pricing page. It cannot be self-hosted. It suits software companies, developer relations teams and support groups that publish public documentation and want it to stay current.