diff --git a/.changeset/nine-clouds-hammer.md b/.changeset/nine-clouds-hammer.md
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+---
+'@firebase/installations': minor
+'@firebase/app': minor
+'@firebase/remote-config': patch
+---
+
+Add `installationsAuthToken` as an optional FirebaseServerApp variable. If present, then Installations `getId` and `getToken` will use the provided value instead of initializing the Installations SDK to retrieve those values dynamically. This should unlock SDKs that require these Installations values in a server environment where the Installations SDK isn't supported.