# Build custom site annotations with ChatGPT

**Published:** October 7, 2026
**Author:** OpenAI
**Source:** YouTube — OpenAI Official
**Language:** en-US
**HTML:** https://aiqazaqstan.com/en/articles/build-custom-site-annotations-with-chatgpt

We recently added support in the ChatGPT app for WebMCP tools. These are actions that you expose on your website to be available to agents, like searching a catalog or updating something on the page. You might also be familiar with annotations already. They're a way for you to…

> From the original source: **YouTube — OpenAI Official**
> [Read full article at YouTube — OpenAI Official](https://www.youtube.com/watch?v=ZcDFZzsp3_Y)

**Tags:** #OpenAI #YouTube

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