Closes #4342

packages/ai/src/providers/anthropic.ts

@@ -863,6 +863,7 @@ function createClient(
 		sessionId && getAnthropicCompat(model).sendSessionAffinityHeaders ? { "x-session-affinity": sessionId } : {};
 	const client = new Anthropic({
 		apiKey,
+		authToken: null,
 		baseURL: model.baseUrl,
 		dangerouslyAllowBrowser: true,
 		defaultHeaders: mergeHeaders(

packages/ai/test/oauth.ts

@@ -74,7 +74,12 @@ export async function resolveApiKey(provider: string): Promise<string | undefine
 			}
 		}
 
-		const result = await getOAuthApiKey(provider as OAuthProvider, oauthCredentials);
+		let result: { newCredentials: OAuthCredentials; apiKey: string } | null = null;
+		try {
+			result = await getOAuthApiKey(provider as OAuthProvider, oauthCredentials);
+		} catch (e) {
+			console.log(JSON.stringify(e));
+		}
 		if (!result) return undefined;
 
 		// Save refreshed credentials back to auth.json