🔄 refactor: Select OpenRouter LLM Class Dynamically by baseURL (#8898)

packages/api/src/endpoints/openai/llm.ts

@@ -1,4 +1,5 @@
 import { ProxyAgent } from 'undici';
+import { Providers } from '@librechat/agents';
 import { KnownEndpoints, removeNullishValues } from 'librechat-data-provider';
 import type { BindToolsInput } from '@langchain/core/language_models/chat_models';
 import type { AzureOpenAIInput } from '@langchain/openai';
@@ -222,9 +223,13 @@ export function getOpenAIConfig(
     });
   }
 
-  return {
+  const result: t.LLMConfigResult = {
     llmConfig,
     configOptions,
     tools,
   };
+  if (useOpenRouter) {
+    result.provider = Providers.OPENROUTER;
+  }
+  return result;
 }

packages/api/src/types/openai.ts

@@ -2,7 +2,7 @@ import { z } from 'zod';
 import { openAISchema, EModelEndpoint } from 'librechat-data-provider';
 import type { TEndpointOption, TAzureConfig, TEndpoint } from 'librechat-data-provider';
 import type { BindToolsInput } from '@langchain/core/language_models/chat_models';
-import type { OpenAIClientOptions } from '@librechat/agents';
+import type { OpenAIClientOptions, Providers } from '@librechat/agents';
 import type { AzureOptions } from './azure';
 
 export type OpenAIParameters = z.infer<typeof openAISchema>;
@@ -35,6 +35,7 @@ export interface LLMConfigResult {
   llmConfig: ClientOptions;
   configOptions: OpenAIConfiguration;
   tools?: BindToolsInput[];
+  provider?: Providers;
 }
 
 /**