diff --git a/src/providers/claude.ts b/src/providers/claude.ts
new file mode 100644
index 0000000..7252da8
--- /dev/null
+++ b/src/providers/claude.ts
@@ -0,0 +1,16 @@
+import { readEnvFile } from '../env.js';
+import { registerProviderContainerConfig } from './provider-container-registry.js';
+
+registerProviderContainerConfig('claude', () => {
+  const dotenv = readEnvFile(['ANTHROPIC_BASE_URL', 'ANTHROPIC_AUTH_TOKEN', 'CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC']);
+  const env: Record<string, string> = {};
+  if (dotenv.ANTHROPIC_BASE_URL) {
+    env.ANTHROPIC_BASE_URL = dotenv.ANTHROPIC_BASE_URL;
+    const host = new URL(dotenv.ANTHROPIC_BASE_URL).hostname;
+    env.NO_PROXY = host;
+    env.no_proxy = host;
+  }
+  if (dotenv.ANTHROPIC_AUTH_TOKEN) env.ANTHROPIC_AUTH_TOKEN = dotenv.ANTHROPIC_AUTH_TOKEN;
+  if (dotenv.CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC) env.CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC = dotenv.CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC;
+  return { env };
+});
diff --git a/src/providers/index.ts b/src/providers/index.ts
index 3ec9512..1a3a638 100644
--- a/src/providers/index.ts
+++ b/src/providers/index.ts
@@ -4,3 +4,4 @@
 // needs (claude, mock) don't appear here.
 //
 // Skills add a new provider by appending one import line below.
+import './claude.js';