diff --git a/apps/server/src/usage/cliproxyApi.test.ts b/apps/server/src/usage/cliproxyApi.test.ts
index 5de08f9a0dc95..bb59266769e5a 100644
--- a/apps/server/src/usage/cliproxyApi.test.ts
+++ b/apps/server/src/usage/cliproxyApi.test.ts
@@ -73,7 +73,7 @@ function fixture(
           request,
           Response.json({}, { status: options.cooldownStatus ?? 200 }),
         );
-      expect(path).toBe("/v0/management/api-call");
+      expect(path).toMatch(/\/v0\/management\/api-call$/);
       expect(body?.header?.Authorization).toBe("Bearer $TOKEN$");
       const upstream = options.upstream?.(body!) ?? {
         status: 200,
@@ -145,6 +145,18 @@ describe("CLIProxyAPI built-in management API", () => {
       }),
   );
 
+  it.effect("keeps the path of a hub served under a prefix", () =>
+    Effect.gen(function* () {
+      const test = fixture();
+      const api = yield* test.api;
+      yield* api.readAccounts({ ...config, url: "https://tools.test/cliproxy" });
+      expect(test.requests.length).toBeGreaterThan(0);
+      expect(
+        test.requests.every((request) => request.path.startsWith("/cliproxy/v0/management/")),
+      ).toBe(true);
+    }),
+  );
+
   it.effect("keeps usage when the credits endpoint fails", () =>
     Effect.gen(function* () {
       const test = fixture({
diff --git a/apps/server/src/usage/cliproxyApi.ts b/apps/server/src/usage/cliproxyApi.ts
index b80ebe59261e7..cbc3fd9d8a2f3 100644
--- a/apps/server/src/usage/cliproxyApi.ts
+++ b/apps/server/src/usage/cliproxyApi.ts
@@ -131,7 +131,11 @@ export const makeCliproxyApi = Effect.gen(function* () {
     body?: unknown,
   ) {
     const url = yield* Effect.try({
-      try: () => new URL(`/v0/management/${path}`, config.url).toString(),
+      try: () =>
+        new URL(
+          `v0/management/${path}`,
+          config.url.endsWith("/") ? config.url : `${config.url}/`,
+        ).toString(),
       catch: () => new UsageLimitSourceError({ detail: "The hub URL is not valid." }),
     });
     const request = (