Merge pull request #1381 from siddharthsambharia-portkey/feat/claude-code-gateway

feat: support claude code oauth/max plans on Portkey

Author: VisargD

src/providers/anthropic/api.ts

@@ -2,9 +2,17 @@ import { ProviderAPIConfig } from '../types';
 
 const AnthropicAPIConfig: ProviderAPIConfig = {
   getBaseURL: () => 'https://api.anthropic.com/v1',
-  headers: ({ providerOptions, fn, gatewayRequestBody }) => {
+
+  headers: ({
+    providerOptions,
+    fn,
+    headers: requestHeaders,
+    gatewayRequestBody,
+  }) => {
+    const apiKey =
+      providerOptions.apiKey || requestHeaders?.['x-api-key'] || '';
     const headers: Record<string, string> = {
-      'X-API-Key': `${providerOptions.apiKey}`,
+      'X-API-Key': apiKey,
     };
 
     // Accept anthropic_beta and anthropic_version in body to support enviroments which cannot send it in headers.