diff --git a/src/cliproxy/auth/auth-types.ts b/src/cliproxy/auth/auth-types.ts
index 927c2e2a..42e3cc9e 100644
--- a/src/cliproxy/auth/auth-types.ts
+++ b/src/cliproxy/auth/auth-types.ts
@@ -15,17 +15,20 @@ import { AccountInfo } from '../account-manager';
  * - Gemini: Authorization Code Flow with local callback server on port 8085
  * - Codex:  Authorization Code Flow with local callback server on port 1455
  * - Agy:    Authorization Code Flow with local callback server on port 51121
- * - Qwen:   Device Code Flow (polling-based, NO callback port needed)
  * - Kiro:   Authorization Code Flow with local callback server on port 9876
+ * - iFlow:  Authorization Code Flow with local callback server on port 11451
+ * - Claude: Authorization Code Flow with local callback server on port 54545 (Anthropic OAuth)
+ * - Qwen:   Device Code Flow (polling-based, NO callback port needed)
  * - GHCP:   Device Code Flow (polling-based, NO callback port needed)
  */
 export const OAUTH_CALLBACK_PORTS: Partial<Record<CLIProxyProvider, number>> = {
   gemini: 8085,
   kiro: 9876,
-  // codex uses 1455
-  // agy uses 51121
-  // qwen uses Device Code Flow - no callback port needed
-  // ghcp uses Device Code Flow - no callback port needed
+  codex: 1455,
+  agy: 51121,
+  iflow: 11451,
+  // qwen: Device Code Flow - no callback port
+  // ghcp: Device Code Flow - no callback port
 };
 
 /**
diff --git a/src/management/oauth-port-diagnostics.ts b/src/management/oauth-port-diagnostics.ts
index e3d28317..262d963d 100644
--- a/src/management/oauth-port-diagnostics.ts
+++ b/src/management/oauth-port-diagnostics.ts
@@ -31,7 +31,7 @@ export const OAUTH_CALLBACK_PORTS: Record<CLIProxyProvider, number | null> = {
   codex: 1455,
   agy: 51121,
   qwen: null, // Device Code Flow - no callback port
-  iflow: null, // Device Code Flow - no callback port
+  iflow: 11451, // Authorization Code Flow
   kiro: 9876, // Authorization Code Flow
   ghcp: null, // Device Code Flow - no callback port
 };
@@ -49,7 +49,7 @@ export const OAUTH_FLOW_TYPES: Record<CLIProxyProvider, OAuthFlowType> = {
   codex: 'authorization_code',
   agy: 'authorization_code',
   qwen: 'device_code',
-  iflow: 'device_code',
+  iflow: 'authorization_code',
   kiro: 'authorization_code',
   ghcp: 'device_code',
 };