diff --git a/stubs/Authlib/@tests/test_cases/check_oauth2_introspect.py b/stubs/Authlib/@tests/test_cases/check_oauth2_introspect.py
new file mode 100644
index 000000000000..dd87286bf978
--- /dev/null
+++ b/stubs/Authlib/@tests/test_cases/check_oauth2_introspect.py
@@ -0,0 +1,13 @@
+from typing import Any
+from typing_extensions import assert_type
+
+from authlib.integrations.httpx_client import AsyncOAuth2Client, OAuth2Client
+
+
+async def check_async_introspect_token(client: AsyncOAuth2Client) -> None:
+    response = await client.introspect_token("https://example.com/introspect")
+    assert_type(response, Any)
+
+
+def check_sync_introspect_token(client: OAuth2Client) -> None:
+    assert_type(client.introspect_token("https://example.com/introspect"), Any)
diff --git a/stubs/Authlib/authlib/integrations/httpx_client/oauth2_client.pyi b/stubs/Authlib/authlib/integrations/httpx_client/oauth2_client.pyi
index 9493842b5378..f2c5a8eace4f 100644
--- a/stubs/Authlib/authlib/integrations/httpx_client/oauth2_client.pyi
+++ b/stubs/Authlib/authlib/integrations/httpx_client/oauth2_client.pyi
@@ -1,6 +1,6 @@
 from _typeshed import Incomplete
-from collections.abc import Generator
-from typing import NoReturn, TypeAlias
+from collections.abc import Awaitable, Generator
+from typing import Any, NoReturn, TypeAlias
 
 from authlib.oauth2.auth import ClientAuth, TokenAuth
 from authlib.oauth2.client import OAuth2Client as _OAuth2Client
@@ -45,6 +45,16 @@ class AsyncOAuth2Client(_OAuth2Client):
     async def request(self, method, url, withhold_token: bool = False, auth=..., **kwargs): ...
     async def stream(self, method, url, withhold_token: bool = False, auth=..., **kwargs) -> Generator[Incomplete]: ...
     async def ensure_active_token(self, token): ...  # type: ignore[override]
+    def introspect_token(
+        self,
+        url: str,
+        token: Any | None = None,
+        token_type_hint: str | None = None,
+        body: Any | None = None,
+        auth: Any = ...,
+        headers: Any | None = None,
+        **kwargs: Any,
+    ) -> Awaitable[_Response]: ...
 
 # Inherits from httpx.Client
 class OAuth2Client(_OAuth2Client):
@@ -69,3 +79,13 @@ class OAuth2Client(_OAuth2Client):
     def handle_error(error_type: str | None, error_description: str | None) -> NoReturn: ...
     def request(self, method, url, withhold_token: bool = False, auth=..., **kwargs): ...
     def stream(self, method, url, withhold_token: bool = False, auth=..., **kwargs): ...
+    def introspect_token(
+        self,
+        url: str,
+        token: Any | None = None,
+        token_type_hint: str | None = None,
+        body: Any | None = None,
+        auth: Any = ...,
+        headers: Any | None = None,
+        **kwargs: Any,
+    ) -> _Response: ...
diff --git a/stubs/Authlib/authlib/oauth2/client.pyi b/stubs/Authlib/authlib/oauth2/client.pyi
index c502a92b5e67..396af2cb9a7c 100644
--- a/stubs/Authlib/authlib/oauth2/client.pyi
+++ b/stubs/Authlib/authlib/oauth2/client.pyi
@@ -1,4 +1,5 @@
 from _typeshed import Incomplete
+from typing import Any
 
 from authlib.oauth2 import ClientAuth, OAuth2Error, TokenAuth
 
@@ -62,7 +63,16 @@ class OAuth2Client:
     def refresh_token(self, url=None, refresh_token=None, body: str = "", auth=None, headers=None, **kwargs): ...
     def ensure_active_token(self, token=None): ...
     def revoke_token(self, url, token=None, token_type_hint=None, body=None, auth=None, headers=None, **kwargs): ...
-    def introspect_token(self, url, token=None, token_type_hint=None, body=None, auth=None, headers=None, **kwargs): ...
+    def introspect_token(
+        self,
+        url: str,
+        token: Any | None = None,
+        token_type_hint: str | None = None,
+        body: Any | None = None,
+        auth: Any | None = None,
+        headers: Any | None = None,
+        **kwargs: Any,
+    ) -> Any: ...
     def register_compliance_hook(self, hook_type, hook) -> None: ...
     def parse_response_token(self, resp): ...
     def __del__(self) -> None: ...