I need a small, self-contained service that can ask Google Play Integrity for a fresh device token whenever my backend requests one. The scope is Android only; no iOS or web considerations are required right now. A simple HTTP/JSON API will be the front door—my server posts a device identifier (or any data you recommend) and your service replies with the newly issued integrity token. Key expectations • You wire up the official Play Integrity API, handle authentication with Google, and return the token in a secure, well-formed JSON response. • The endpoint must scale for burst traffic but a single-instance Docker image is fine to start. • Clear README covering setup, required Google Cloud credentials, and a short curl example are part of the delivery. • Any language is welcome as long as it is mainstream and has solid Google client-library support (Kotlin, Java, Node.js, Python, Go all acceptable). Acceptance I will spin up the container with my own service account, hit the endpoint, and verify I get a valid, fresh token for a new test device. If the token verifies with Google Play Integrity checker, the job is complete.