diff --git a/apps/open-swe/src/utils/llms/model-manager.ts b/apps/open-swe/src/utils/llms/model-manager.ts
index b8503d8fb..64d966ab9 100644
--- a/apps/open-swe/src/utils/llms/model-manager.ts
+++ b/apps/open-swe/src/utils/llms/model-manager.ts
@@ -23,6 +23,13 @@ export interface CircuitBreakerState {
   openedAt?: number;
 }
 
+export interface ApiKeyRotationState {
+  keys: string[];
+  currentIndex: number;
+  lastUsedTime: number;
+  cooldownUntil: number;
+}
+
 interface ModelLoadConfig {
   provider: Provider;
   modelName: string;
@@ -47,6 +54,7 @@ export const PROVIDER_FALLBACK_ORDER = [
   "openai",
   "anthropic",
   "google-genai",
+  "openrouter",
 ] as const;
 export type Provider = (typeof PROVIDER_FALLBACK_ORDER)[number];
 
@@ -82,6 +90,8 @@ const providerToApiKey = (
       return apiKeys.anthropicApiKey;
     case "google-genai":
       return apiKeys.googleApiKey;
+    case "openrouter":
+      return apiKeys.openrouterApiKey;
     default:
       throw new Error(`Unknown provider: ${providerName}`);
   }
@@ -90,6 +100,9 @@ const providerToApiKey = (
 export class ModelManager {
   private config: ModelManagerConfig;
   private circuitBreakers: Map<string, CircuitBreakerState> = new Map();
+  private apiKeys: Map<Provider, ApiKeyRotationState> = new Map();
+  // Store the last reset time for daily rotation
+  private lastDailyReset: Map<Provider, number> = new Map();
 
   constructor(config: Partial<ModelManagerConfig> = {}) {
     this.config = { ...DEFAULT_MODEL_MANAGER_CONFIG, ...config };
diff --git a/apps/web/src/lib/api-keys.ts b/apps/web/src/lib/api-keys.ts
index d2f0b6a3d..ab94684dc 100644
--- a/apps/web/src/lib/api-keys.ts
+++ b/apps/web/src/lib/api-keys.ts
@@ -16,7 +16,8 @@ export function hasApiKeySet(config: Record<string, any>) {
   if (
     (enabledProviders.includes("anthropic") && !apiKeys.anthropicApiKey) ||
     (enabledProviders.includes("openai") && !apiKeys.openaiApiKey) ||
-    (enabledProviders.includes("google-genai") && !apiKeys.googleApiKey)
+    (enabledProviders.includes("google-genai") && !apiKeys.googleApiKey) ||
+    (enabledProviders.includes("openrouter") && !apiKeys.openrouterApiKey)
   ) {
     return false;
   }