diff --git a/litellm-proxy-extras/litellm_proxy_extras/migrations/20260823000000_add_spend_logs_api_key_starttime_index/migration.sql b/litellm-proxy-extras/litellm_proxy_extras/migrations/20260823000000_add_spend_logs_api_key_starttime_index/migration.sql
new file mode 100644
index 00000000000..9a061aaed43
--- /dev/null
+++ b/litellm-proxy-extras/litellm_proxy_extras/migrations/20260823000000_add_spend_logs_api_key_starttime_index/migration.sql
@@ -0,0 +1,2 @@
+-- CreateIndex
+CREATE INDEX IF NOT EXISTS "LiteLLM_SpendLogs_api_key_startTime_idx" ON "LiteLLM_SpendLogs"("api_key", "startTime");
diff --git a/litellm-proxy-extras/litellm_proxy_extras/schema.prisma b/litellm-proxy-extras/litellm_proxy_extras/schema.prisma
index d9959677116..7a7c47e71d8 100644
--- a/litellm-proxy-extras/litellm_proxy_extras/schema.prisma
+++ b/litellm-proxy-extras/litellm_proxy_extras/schema.prisma
@@ -647,6 +647,7 @@ model LiteLLM_SpendLogs {
   @@index([startTime, request_id])
   @@index([end_user])
   @@index([session_id])
+  @@index([api_key, startTime])
 }
 
 // View spend, model, api_key per request
diff --git a/litellm/proxy/schema.prisma b/litellm/proxy/schema.prisma
index d9959677116..7a7c47e71d8 100644
--- a/litellm/proxy/schema.prisma
+++ b/litellm/proxy/schema.prisma
@@ -647,6 +647,7 @@ model LiteLLM_SpendLogs {
   @@index([startTime, request_id])
   @@index([end_user])
   @@index([session_id])
+  @@index([api_key, startTime])
 }
 
 // View spend, model, api_key per request
diff --git a/schema.prisma b/schema.prisma
index d9959677116..7a7c47e71d8 100644
--- a/schema.prisma
+++ b/schema.prisma
@@ -647,6 +647,7 @@ model LiteLLM_SpendLogs {
   @@index([startTime, request_id])
   @@index([end_user])
   @@index([session_id])
+  @@index([api_key, startTime])
 }
 
 // View spend, model, api_key per request