diff --git a/.changeset/thirty-dogs-wave.md b/.changeset/thirty-dogs-wave.md
new file mode 100644
index 0000000000..b8c4728a32
--- /dev/null
+++ b/.changeset/thirty-dogs-wave.md
@@ -0,0 +1,5 @@
+---
+'@backstage/plugin-auth-backend': patch
+---
+
+Deprecated `createRouter` and its router options in favour of the new backend system.
diff --git a/plugins/auth-backend/api-report.md b/plugins/auth-backend/api-report.md
index 56c2da3a08..29086cf86b 100644
--- a/plugins/auth-backend/api-report.md
+++ b/plugins/auth-backend/api-report.md
@@ -20,6 +20,7 @@ import { ClientAuthResponse } from '@backstage/plugin-auth-node';
 import { cloudflareAccessSignInResolvers } from '@backstage/plugin-auth-backend-module-cloudflare-access-provider';
 import { Config } from '@backstage/config';
 import { CookieConfigurer as CookieConfigurer_2 } from '@backstage/plugin-auth-node';
+import { DatabaseService } from '@backstage/backend-plugin-api';
 import { decodeOAuthState } from '@backstage/plugin-auth-node';
 import { DiscoveryService } from '@backstage/backend-plugin-api';
 import { encodeOAuthState } from '@backstage/plugin-auth-node';
@@ -33,14 +34,13 @@ import { OAuth2ProxyResult as OAuth2ProxyResult_2 } from '@backstage/plugin-auth
 import { OAuthEnvironmentHandler as OAuthEnvironmentHandler_2 } from '@backstage/plugin-auth-node';
 import { OAuthState as OAuthState_2 } from '@backstage/plugin-auth-node';
 import { OidcAuthResult as OidcAuthResult_2 } from '@backstage/plugin-auth-backend-module-oidc-provider';
-import { PluginDatabaseManager } from '@backstage/backend-common';
-import { PluginEndpointDiscovery } from '@backstage/backend-common';
 import { prepareBackstageIdentityResponse as prepareBackstageIdentityResponse_2 } from '@backstage/plugin-auth-node';
 import { Profile } from 'passport';
 import { ProfileInfo as ProfileInfo_2 } from '@backstage/plugin-auth-node';
 import { SignInInfo as SignInInfo_2 } from '@backstage/plugin-auth-node';
 import { SignInResolver as SignInResolver_2 } from '@backstage/plugin-auth-node';
 import { TokenManager } from '@backstage/backend-common';
+import { TokenManagerService } from '@backstage/backend-plugin-api';
 import { TokenParams as TokenParams_2 } from '@backstage/plugin-auth-node';
 import { UserEntity } from '@backstage/catalog-model';
 import { WebMessageResponse as WebMessageResponse_2 } from '@backstage/plugin-auth-node';
@@ -193,7 +193,7 @@ export function createAuthProviderIntegration<
 // @public (undocumented)
 export function createOriginFilter(config: Config): (origin: string) => boolean;
 
-// @public (undocumented)
+// @public @deprecated (undocumented)
 export function createRouter(options: RouterOptions): Promise<express.Router>;
 
 // @public
@@ -647,7 +647,7 @@ export const providers: Readonly<{
 // @public @deprecated (undocumented)
 export const readState: typeof decodeOAuthState;
 
-// @public (undocumented)
+// @public @deprecated (undocumented)
 export interface RouterOptions {
   // (undocumented)
   auth?: AuthService;
@@ -656,11 +656,11 @@ export interface RouterOptions {
   // (undocumented)
   config: Config;
   // (undocumented)
-  database: PluginDatabaseManager;
+  database: DatabaseService;
   // (undocumented)
   disableDefaultProviderFactories?: boolean;
   // (undocumented)
-  discovery: PluginEndpointDiscovery;
+  discovery: DiscoveryService;
   // (undocumented)
   httpAuth?: HttpAuthService;
   // (undocumented)
@@ -672,7 +672,7 @@ export interface RouterOptions {
   // (undocumented)
   tokenFactoryAlgorithm?: string;
   // (undocumented)
-  tokenManager: TokenManager;
+  tokenManager: TokenManagerService;
 }
 
 // @public (undocumented)
diff --git a/plugins/auth-backend/src/service/router.ts b/plugins/auth-backend/src/service/router.ts
index 4bb42c3abd..033f9f8d21 100644
--- a/plugins/auth-backend/src/service/router.ts
+++ b/plugins/auth-backend/src/service/router.ts
@@ -19,17 +19,15 @@ import Router from 'express-promise-router';
 import cookieParser from 'cookie-parser';
 import {
   AuthService,
+  DatabaseService,
+  DiscoveryService,
   HttpAuthService,
   LoggerService,
+  TokenManagerService,
 } from '@backstage/backend-plugin-api';
 import { defaultAuthProviderFactories } from '../providers';
 import { AuthOwnershipResolver } from '@backstage/plugin-auth-node';
-import {
-  createLegacyAuthAdapters,
-  PluginDatabaseManager,
-  PluginEndpointDiscovery,
-  TokenManager,
-} from '@backstage/backend-common';
+import { createLegacyAuthAdapters } from '@backstage/backend-common';
 import { NotFoundError } from '@backstage/errors';
 import { CatalogApi } from '@backstage/catalog-client';
 import {
@@ -49,13 +47,16 @@ import { StaticKeyStore } from '../identity/StaticKeyStore';
 import { Config } from '@backstage/config';
 import { bindProviderRouters, ProviderFactories } from '../providers/router';
 
-/** @public */
+/**
+ * @public
+ * @deprecated Please migrate to the new backend system as this will be removed in the future.
+ */
 export interface RouterOptions {
   logger: LoggerService;
-  database: PluginDatabaseManager;
+  database: DatabaseService;
   config: Config;
-  discovery: PluginEndpointDiscovery;
-  tokenManager: TokenManager;
+  discovery: DiscoveryService;
+  tokenManager: TokenManagerService;
   auth?: AuthService;
   httpAuth?: HttpAuthService;
   tokenFactoryAlgorithm?: string;
@@ -65,7 +66,10 @@ export interface RouterOptions {
   ownershipResolver?: AuthOwnershipResolver;
 }
 
-/** @public */
+/**
+ * @public
+ * @deprecated Please migrate to the new backend system as this will be removed in the future.
+ */
 export async function createRouter(
   options: RouterOptions,
 ): Promise<express.Router> {