Merge pull request #1433 from Portkey-AI/fix/autoForwardAnthropicHeaders

Auto add anthropic headers

Author: VisargD

src/handlers/handlerUtils.ts

@@ -949,17 +949,25 @@ export function constructConfigFromRequestHeaders(
     vertexModelName: requestHeaders[`x-${POWERED_BY}-provider-model`],
     vertexBatchEndpoint:
       requestHeaders[`x-${POWERED_BY}-provider-batch-endpoint`],
-    anthropicBeta: requestHeaders[`x-${POWERED_BY}-anthropic-beta`],
+    anthropicBeta:
+      requestHeaders[`x-${POWERED_BY}-anthropic-beta`] ||
+      requestHeaders[`anthropic-beta`],
   };
 
   const fireworksConfig = {
     fireworksAccountId: requestHeaders[`x-${POWERED_BY}-fireworks-account-id`],
     fireworksFileLength: requestHeaders[`x-${POWERED_BY}-file-upload-size`],
   };
 
+  // we also support the anthropic headers without the x-${POWERED_BY}- prefix for claude code support
   const anthropicConfig = {
-    anthropicBeta: requestHeaders[`x-${POWERED_BY}-anthropic-beta`],
-    anthropicVersion: requestHeaders[`x-${POWERED_BY}-anthropic-version`],
+    anthropicBeta:
+      requestHeaders[`x-${POWERED_BY}-anthropic-beta`] ||
+      requestHeaders[`anthropic-beta`],
+    anthropicVersion:
+      requestHeaders[`x-${POWERED_BY}-anthropic-version`] ||
+      requestHeaders[`anthropic-version`],
+    anthropicApiKey: requestHeaders[`x-api-key`],
   };
 
   const vertexServiceAccountJson =

src/providers/anthropic/api.ts

@@ -10,7 +10,7 @@ const AnthropicAPIConfig: ProviderAPIConfig = {
     gatewayRequestBody,
   }) => {
     const apiKey =
-      providerOptions.apiKey || requestHeaders?.['x-api-key'] || '';
+      providerOptions.apiKey || providerOptions.anthropicApiKey || '';
     const headers: Record<string, string> = {
       'X-API-Key': apiKey,
     };

src/types/requestBody.ts

@@ -152,6 +152,7 @@ export interface Options {
   /** Anthropic specific headers */
   anthropicBeta?: string;
   anthropicVersion?: string;
+  anthropicApiKey?: string;
 
   /** Fireworks finetune required fields */
   fireworksAccountId?: string;