From d254d4ce007d446dbd246658345a30ff86413721 Mon Sep 17 00:00:00 2001
From: ashwinpvg <ashwinpv@google.com>
Date: Thu, 24 Jul 2025 10:37:39 -0700
Subject: Add Google credentials provider for authenticating with MCP servers
 (#4748)

---
 docs/tools/mcp-server.md | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

(limited to 'docs')

diff --git a/docs/tools/mcp-server.md b/docs/tools/mcp-server.md
index 187bd370..cd70da04 100644
--- a/docs/tools/mcp-server.md
+++ b/docs/tools/mcp-server.md
@@ -179,6 +179,28 @@ OAuth tokens are automatically:
 - **Validated** before each connection attempt
 - **Cleaned up** when invalid or expired
 
+#### Authentication Provider Type
+
+You can specify the authentication provider type using the `authProviderType` property:
+
+- **`authProviderType`** (string): Specifies the authentication provider. Can be one of the following:
+  - **`dynamic_discovery`** (default): The CLI will automatically discover the OAuth configuration from the server.
+  - **`google_credentials`**: The CLI will use the Google Application Default Credentials (ADC) to authenticate with the server. When using this provider, you must specify the required scopes.
+
+```json
+{
+  "mcpServers": {
+    "googleCloudServer": {
+      "httpUrl": "https://my-gcp-service.run.app/mcp",
+      "authProviderType": "google_credentials",
+      "oauth": {
+        "scopes": ["https://www.googleapis.com/auth/userinfo.email"]
+      }
+    }
+  }
+}
+```
+
 ### Example Configurations
 
 #### Python MCP Server (Stdio)
-- 
cgit v1.2.3