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+---
+title: "API Keys: Permission level"
+---
+
+Every API key has a **permission level** the controls what the key can do.
+
+The permission level is a number from `0` to `4` with the following significance:
+
+- `0` : Authenticate only
+- `1` : Read access to your own patterns and measurements sets
+- `2` : Read access to all your account data
+- `3` : Write access to your own patterns and measurements sets
+- `4` : Write access to all your account data
+
+<Link>
+For more details, refer to [the backend documentation on FreeSewing.dev](https://freesewing.dev/reference/backend/rbac#permission-levels)
+</Link>