From 3a8dea826448cdb29ceba6c8e4727c97e8268e50 Mon Sep 17 00:00:00 2001
From: Roo Code <roomote@roocode.com>
Date: Mon, 2 Feb 2026 15:22:39 +0000
Subject: [PATCH] feat: use custom Base URL for OpenRouter model list fetch

When a custom Base URL is configured for the OpenRouter provider,
Roo Code now uses that URL to fetch the list of available models
instead of always hitting the public OpenRouter API.

Changes:
- webviewMessageHandler.ts: Pass openRouterBaseUrl to the openrouter candidate options
- modelCache.ts: Forward baseUrl option to getOpenRouterModels()

Fixes #11150
---
 src/api/providers/fetchers/modelCache.ts  | 2 +-
 src/core/webview/webviewMessageHandler.ts | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/api/providers/fetchers/modelCache.ts b/src/api/providers/fetchers/modelCache.ts
index 51ca19e2bce..cb5cb094148 100644
--- a/src/api/providers/fetchers/modelCache.ts
+++ b/src/api/providers/fetchers/modelCache.ts
@@ -67,7 +67,7 @@ async function fetchModelsFromProvider(options: GetModelsOptions): Promise<Model
 
 	switch (provider) {
 		case "openrouter":
-			models = await getOpenRouterModels()
+			models = await getOpenRouterModels({ openRouterBaseUrl: options.baseUrl })
 			break
 		case "requesty":
 			// Requesty models endpoint requires an API key for per-user custom policies.
diff --git a/src/core/webview/webviewMessageHandler.ts b/src/core/webview/webviewMessageHandler.ts
index 73ca3c60bf6..ea4a5567267 100644
--- a/src/core/webview/webviewMessageHandler.ts
+++ b/src/core/webview/webviewMessageHandler.ts
@@ -894,7 +894,7 @@ export const webviewMessageHandler = async (
 
 			// Base candidates (only those handled by this aggregate fetcher)
 			const candidates: { key: RouterName; options: GetModelsOptions }[] = [
-				{ key: "openrouter", options: { provider: "openrouter" } },
+				{ key: "openrouter", options: { provider: "openrouter", baseUrl: apiConfiguration.openRouterBaseUrl } },
 				{
 					key: "requesty",
 					options: {