diff --git a/src/main/java/icu/samnyan/aqua/net/UserRegistrar.kt b/src/main/java/icu/samnyan/aqua/net/UserRegistrar.kt
index e274d031..bfa479a4 100644
--- a/src/main/java/icu/samnyan/aqua/net/UserRegistrar.kt
+++ b/src/main/java/icu/samnyan/aqua/net/UserRegistrar.kt
@@ -166,4 +166,19 @@ class UserRegistrar(
 
         SUCCESS
     }
+
+    val keychipRange = 1e9.toULong()..1e10.toULong() - 1UL
+
+    @API("/keychip")
+    @Doc("Get a Keychip ID so that the user can connect to the server.", "Success message")
+    suspend fun setupConnection(@RP token: Str) = jwt.auth(token) { u ->
+        if (u.keychip != null) mapOf("keychip" to u.keychip)
+
+        // Generate a keychip id with 10 digits (e.g. A1234567890)
+        var new = "A" + keychipRange.random()
+        while (async { userRepo.findByKeychip(new) != null }) new = "A" + keychipRange.random()
+        async { userRepo.save(u.apply { keychip = new }) }
+
+        mapOf("keychip" to new)
+    }
 }
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