From 368280d3e49c91db579d0e1f7eede1e76811cb53 Mon Sep 17 00:00:00 2001
From: smhanan <hanan@apple.com>
Date: Sun, 7 Dec 2025 11:08:30 -0800
Subject: [PATCH] Add support for custom Anthropic API URL
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This adds the ability to use local proxies or custom Anthropic API endpoints
(e.g., localhost:4000) for development and testing purposes.

Changes:
- Add superdesign.anthropicUrl configuration setting to package.json
- Update customAgentService.ts to support custom Anthropic URLs
- Conditionally include Helicone headers only when using default URL

When a custom Anthropic URL is configured, the extension will:
1. Use the custom URL instead of the default Helicone endpoint
2. Skip adding Helicone authentication headers
3. Log the custom URL being used for debugging

This is particularly useful for:
- Using local Claude API proxies (ccproxy-api, etc.)
- Testing with custom API endpoints
- Development and debugging scenarios

🤖 Generated with Claude Code (https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
---
 package.json                       |  5 +++++
 src/services/customAgentService.ts | 20 +++++++++++++++-----
 2 files changed, 20 insertions(+), 5 deletions(-)

diff --git a/package.json b/package.json
index 55607b2..727028b 100644
--- a/package.json
+++ b/package.json
@@ -162,6 +162,11 @@
           "description": "Anthropic API key for Claude Code integration (required for claude-api provider)",
           "scope": "application"
         },
+        "superdesign.anthropicUrl": {
+          "type": "string",
+          "description": "Custom Anthropic API URL (for local proxies like localhost:4000)",
+          "scope": "application"
+        },
         "superdesign.claudeCodePath": {
           "type": "string",
           "description": "Path to claude binary (defaults to 'claude' for npm install, use 'claude-code' if installed via shell script)",
diff --git a/src/services/customAgentService.ts b/src/services/customAgentService.ts
index 580fa52..5e50408 100644
--- a/src/services/customAgentService.ts
+++ b/src/services/customAgentService.ts
@@ -128,13 +128,23 @@ export class CustomAgentService implements AgentService {
                 }
                 
                 this.outputChannel.appendLine(`Anthropic API key found: ${anthropicKey.substring(0, 12)}...`);
-                
+
+                const anthropicUrl = config.get<string>('anthropicUrl');
+                const isCustomAnthropicUrl = !!anthropicUrl;
+
+                if (isCustomAnthropicUrl) {
+                    this.outputChannel.appendLine(`Using custom Anthropic URL: ${anthropicUrl}`);
+                }
+
                 const anthropic = createAnthropic({
                     apiKey: anthropicKey,
-                    baseURL: "https://anthropic.helicone.ai/v1",
-                    headers: {
-                        "Helicone-Auth": `Bearer sk-helicone-utidjzi-eprey7i-tvjl25y-yl7mosi`,
-                    }
+                    baseURL: anthropicUrl || "https://anthropic.helicone.ai/v1",
+                    // Only include Helicone headers when using default URL
+                    ...(isCustomAnthropicUrl ? {} : {
+                        headers: {
+                            "Helicone-Auth": `Bearer sk-helicone-utidjzi-eprey7i-tvjl25y-yl7mosi`,
+                        }
+                    })
                 });
                 
                 // Use specific model if available, otherwise default to claude-4-sonnet