fix: working

app/lib/.server/llm/api-key.ts

@@ -2,12 +2,18 @@
 // Preventing TS checks with files presented in the video for a better presentation.
 import { env } from 'node:process';
 
-export function getAPIKey(cloudflareEnv: Env, provider: string) {
+export function getAPIKey(cloudflareEnv: Env, provider: string, userApiKeys?: Record<string, string>) {
   /**
    * The `cloudflareEnv` is only used when deployed or when previewing locally.
    * In development the environment variables are available through `env`.
    */
 
+  // First check user-provided API keys
+  if (userApiKeys?.[provider]) {
+    return userApiKeys[provider];
+  }
+
+  // Fall back to environment variables
   switch (provider) {
     case 'Anthropic':
       return env.ANTHROPIC_API_KEY || cloudflareEnv.ANTHROPIC_API_KEY;

app/lib/.server/llm/model.ts

@@ -80,8 +80,8 @@ export function getOpenRouterModel(apiKey: string, model: string) {
   return openRouter.chat(model);
 }
 
-export function getModel(provider: string, model: string, env: Env) {
-  const apiKey = getAPIKey(env, provider);
+export function getModel(provider: string, model: string, env: Env, apiKeys?: Record<string, string>) {
+  const apiKey = getAPIKey(env, provider, apiKeys);
   const baseURL = getBaseURL(env, provider);
 
   switch (provider) {

app/lib/.server/llm/stream-text.ts

@@ -38,7 +38,12 @@ function extractModelFromMessage(message: Message): { model: string; content: st
   return { model: DEFAULT_MODEL, content: message.content };
 }
 
-export function streamText(messages: Messages, env: Env, options?: StreamingOptions) {
+export function streamText(
+  messages: Messages, 
+  env: Env, 
+  options?: StreamingOptions,
+  apiKeys?: Record<string, string>
+) {
   let currentModel = DEFAULT_MODEL;
   const processedMessages = messages.map((message) => {
     if (message.role === 'user') {
@@ -54,7 +59,7 @@ export function streamText(messages: Messages, env: Env, options?: StreamingOpti
   const provider = MODEL_LIST.find((model) => model.name === currentModel)?.provider || DEFAULT_PROVIDER;
 
   return _streamText({
-    model: getModel(provider, currentModel, env),
+    model: getModel(provider, currentModel, env, apiKeys),
     system: getSystemPrompt(),
     maxTokens: MAX_TOKENS,
     // headers: {