diff --git a/app/api/v1/endpoints/agent_auth.py b/app/api/v1/endpoints/agent_auth.py
index c3f91d6..c2637de 100644
--- a/app/api/v1/endpoints/agent_auth.py
+++ b/app/api/v1/endpoints/agent_auth.py
@@ -20,6 +20,7 @@ class AgentAuthContextResponse(BaseModel):
     role: str
     is_superuser: bool
     project_id: str
+    network: str
     project_role: str
     token_expires_at: str | None = None
 
@@ -43,6 +44,7 @@ async def get_agent_auth_context(
         role=current_user.role,
         is_superuser=current_user.is_superuser,
         project_id=str(ctx.project_id),
+        network=ctx.project_code,
         project_role=ctx.project_role,
         token_expires_at=token_expires_at,
     )
diff --git a/app/auth/project_dependencies.py b/app/auth/project_dependencies.py
index 6513c93..0bcaa43 100644
--- a/app/auth/project_dependencies.py
+++ b/app/auth/project_dependencies.py
@@ -25,6 +25,7 @@ logger = logging.getLogger(__name__)
 @dataclass(frozen=True)
 class ProjectContext:
     project_id: UUID
+    project_code: str
     user_id: UUID
     project_role: str
 
@@ -85,6 +86,7 @@ async def get_project_context(
 
     return ProjectContext(
         project_id=project.id,
+        project_code=project.code,
         user_id=user.id,
         project_role=membership_role,
     )
diff --git a/cli/tjwater_cli/core.py b/cli/tjwater_cli/core.py
index 16d7bde..2fb33da 100644
--- a/cli/tjwater_cli/core.py
+++ b/cli/tjwater_cli/core.py
@@ -404,6 +404,14 @@ def _parse_response_body(response: requests.Response) -> Any:
     return {}
 
 
+def _with_network_param(params: dict[str, Any] | None, network: str) -> dict[str, Any]:
+    params = dict(params or {})
+    if "network" in params or "network_name" in params or "name" in params:
+        return params
+    params["network"] = network
+    return params
+
+
 def request_json(
     ctx: RuntimeContext,
     *,
@@ -417,10 +425,13 @@ def request_json(
     require_username_ctx: bool = False,
 ) -> tuple[Any, int]:
     require_server(ctx)
+    network = None
     if require_network_ctx:
-        require_network(ctx)
+        network = require_network(ctx)
     if require_username_ctx:
         require_username(ctx)
+    if network and (params is not None or json_body is None):
+        params = _with_network_param(params, network)
 
     url = f"{require_server(ctx)}/api/v1{path}"
     headers = build_headers(ctx, require_auth=require_auth, require_project=require_project)
@@ -474,8 +485,11 @@ def request_bytes(
     require_network_ctx: bool = False,
 ) -> tuple[bytes, int]:
     require_server(ctx)
+    network = None
     if require_network_ctx:
-        require_network(ctx)
+        network = require_network(ctx)
+    if network:
+        params = _with_network_param(params, network)
 
     url = f"{require_server(ctx)}/api/v1{path}"
     headers = build_headers(ctx, require_auth=require_auth, require_project=require_project)
diff --git a/tests/api/test_agent_auth_endpoints.py b/tests/api/test_agent_auth_endpoints.py
index 1acda78..38fbdb2 100644
--- a/tests/api/test_agent_auth_endpoints.py
+++ b/tests/api/test_agent_auth_endpoints.py
@@ -28,6 +28,7 @@ def test_agent_auth_context_returns_metadata_user_and_project_context():
     client = _build_client(
         project_context=ProjectContext(
             project_id=project_id,
+            project_code="fengyang",
             user_id=user_id,
             project_role="editor",
         ),
@@ -50,6 +51,7 @@ def test_agent_auth_context_returns_metadata_user_and_project_context():
         "role": "user",
         "is_superuser": False,
         "project_id": str(project_id),
+        "network": "fengyang",
         "project_role": "editor",
         "token_expires_at": "2026-06-11T13:10:00+00:00",
     }