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Google Home

# Google Home Local API This is an unofficial documentation of the local API used by the Home app to communicate with GH devices. GitHub Repo ![GitHub stars](https://github.com/rithvikvibhu/GHLocalApi/stargazers) ![GitHub license](https://github.com/rithvikvibhu/GHLocalApi/blob/master/LICENSE.md) ## Getting Started Requests must be made over HTTPS, port 8443, so the base URL for these endpoints is: `https:// :8443/setup/` Get the IP of Google Home from the Google Home app (Device Settings -> End of the list) or from your router. GET requests are simple, in the browser kind. POST requests need to set the header (when there's a body): `content-type: application/json` ## Authentication Since June 2019, most requests (with exceptions like `/setup/eureka_info`) need a local authorization token. There are 3 kinds of tokens involved here: ### Local Authorization Token This token must be sent in all requests in the header `cast-local-authorization-token`. It is short-lived (~1 day) and may change unexpectedly (with a sync, change in homegraph, etc.) ##### Get this token - With access to an android device, get this token directly by either method. - Without a device, or to integrate it with

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  1. First observed: Sep 20, 2026
  2. Last directory-field change: Sep 20, 2026
  3. Current source observation: Sep 20, 2026

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