diff --git a/apps/server/src/openapi/metadata.test.ts b/apps/server/src/openapi/metadata.test.ts
new file mode 100644
index 000000000..ebf622cd6
--- /dev/null
+++ b/apps/server/src/openapi/metadata.test.ts
@@ -0,0 +1,42 @@
+import { describe, expect, it, vi } from "vitest";
+
+const mocks = vi.hoisted(() => ({
+	auth: {},
+	env: {
+		APP_URL: "https://rxresu.me",
+	},
+}));
+
+vi.mock("@better-auth/oauth-provider", () => ({
+	oauthProviderAuthServerMetadata: vi.fn(() => vi.fn(() => Response.json({}))),
+	oauthProviderOpenIdConfigMetadata: vi.fn(() => vi.fn(() => Response.json({}))),
+}));
+
+vi.mock("@reactive-resume/auth/config", () => ({
+	auth: mocks.auth,
+}));
+
+vi.mock("@reactive-resume/env/server", () => ({
+	env: mocks.env,
+}));
+
+vi.mock("@reactive-resume/mcp/server-card", () => ({
+	buildMcpServerCard: vi.fn(() => ({})),
+}));
+
+vi.mock("../app-version", () => ({
+	appVersion: "test",
+}));
+
+describe("handleOAuthProtectedResource", () => {
+	it("advertises the mounted auth issuer as the authorization server", async () => {
+		const { handleOAuthProtectedResource } = await import("./metadata");
+
+		const response = await handleOAuthProtectedResource();
+
+		await expect(response.json()).resolves.toMatchObject({
+			resource: "https://rxresu.me",
+			authorization_servers: ["https://rxresu.me/api/auth"],
+		});
+	});
+});
diff --git a/apps/server/src/openapi/metadata.ts b/apps/server/src/openapi/metadata.ts
index a100133bc..9972a92a4 100644
--- a/apps/server/src/openapi/metadata.ts
+++ b/apps/server/src/openapi/metadata.ts
@@ -32,7 +32,7 @@ export async function handleOAuthProtectedResource() {
 	const metadata = {
 		resource: env.APP_URL,
 		bearer_methods_supported: ["header"],
-		authorization_servers: [env.APP_URL, `${env.APP_URL}/api/auth`],
+		authorization_servers: [`${env.APP_URL}/api/auth`],
 	};
 
 	return Response.json(metadata, {