diff --git a/bluesky_httpserver/routers/core_api.py b/bluesky_httpserver/routers/core_api.py
index 3cd00aa..265bb2a 100644
--- a/bluesky_httpserver/routers/core_api.py
+++ b/bluesky_httpserver/routers/core_api.py
@@ -736,6 +736,172 @@ async def plans_allowed_handler(
     return msg
 
 
+# ========================================================================
+#                        Experimental endpoints.
+
+
+def get_json_schema(plan_description, allowed_plans, allowed_devices):
+    from bluesky_queueserver.manager.profile_ops import (
+        construct_parameters,
+        filter_plan_description,
+        pydantic_construct_model_class,
+    )
+
+    plan_description = filter_plan_description(
+        plan_description, allowed_plans=allowed_plans, allowed_devices=allowed_devices
+    )
+    param_list = plan_description["parameters"]
+    parameters = construct_parameters(param_list)
+    pydantic_model_class = pydantic_construct_model_class(parameters)
+    return pydantic_model_class.model_json_schema()
+
+
+@router.get("/plans/allowed/json_schema")
+async def plans_allowed_json_schema_handler(
+    payload: dict = {},
+    principal=Security(get_current_principal, scopes=["read:resources"]),
+    settings: BaseSettings = Depends(get_settings),
+    api_access_manager=Depends(get_api_access_manager),
+    resource_access_manager=Depends(get_resource_access_manager),
+):
+    """
+    Returns JSON schemas for plans in the list of allowed plans.
+    """
+
+    try:
+        validate_payload_keys(payload)
+
+        username = get_current_username(
+            principal=principal, settings=settings, api_access_manager=api_access_manager
+        )[0]
+        user_group = resource_access_manager.get_resource_group(username)
+        payload.update({"user_group": user_group})
+        plans_msg = await SR.RM.plans_allowed(**payload)
+        devices_msg = await SR.RM.devices_allowed(**payload)
+
+        plans_allowed = plans_msg["plans_allowed"]
+        devices_allowed = devices_msg["devices_allowed"]
+
+        plans_schemas = {}
+        for plan in plans_allowed:
+            schema = get_json_schema(plans_allowed[plan], plans_allowed, devices_allowed)
+            plans_schemas[plan] = schema
+
+        msg = plans_msg.copy()
+        msg["plans_allowed"] = plans_schemas
+
+        print(f"{list(plans_allowed.keys())=}")
+
+    except Exception:
+        process_exception()
+    return msg
+
+
+def plan_bind_args(item, existing_plans, existing_devices):
+    import inspect
+
+    from bluesky_queueserver.manager.profile_ops import construct_parameters, filter_plan_description
+
+    if item["item_type"] == "plan":
+        name = item.get("name", None)
+        if not name:
+            raise ValueError(f"Item {item} does not have 'name' key")
+        plan_description = existing_plans.get(name, None)
+        if not plan_description:
+            raise ValueError(f"No description is found for  plan {name!r} (item {item})")
+        call_args, call_kwargs = item.get("args", []), item.get("kwargs", {})
+
+        plan_description = filter_plan_description(
+            plan_description, allowed_plans=existing_plans, allowed_devices=existing_devices
+        )
+        param_list = plan_description["parameters"]
+        parameters = construct_parameters(param_list)
+
+        sig = inspect.Signature(parameters)
+        bound_args = sig.bind(*call_args, **call_kwargs)
+
+        arguments = bound_args.arguments
+        item["args"] = []
+        item["kwargs"] = arguments
+
+        # print(f"{args=} {kwargs=} {arguments=}")
+
+    return item
+
+
+@router.get("/queue/get/arguments")
+async def queue_get_arguments_handler(
+    payload: dict = {},
+    principal=Security(get_current_principal, scopes=["read:queue"]),
+    settings: BaseSettings = Depends(get_settings),
+    api_access_manager=Depends(get_api_access_manager),
+    resource_access_manager=Depends(get_resource_access_manager),
+):
+    """
+    Returns plan queue. The plan args are bound to names if possible.
+    """
+
+    try:
+        validate_payload_keys(payload)
+
+        msg_queue = await SR.RM.queue_get(**payload)
+        print(f"msg_queue = {msg_queue}")
+
+        plans_msg = await SR.RM.plans_existing(**payload)
+        devices_msg = await SR.RM.devices_existing(**payload)
+        plans_existing = plans_msg["plans_existing"]
+        devices_existing = devices_msg["devices_existing"]
+
+        items = msg_queue.get("items", [])
+        items_updated = []
+        for item in items:
+            item_updated = plan_bind_args(item, plans_existing, devices_existing)
+            items_updated.append(item_updated)
+
+        msg_queue["items"] = items_updated
+
+    except Exception:
+        process_exception()
+    return msg_queue
+
+
+@router.post("/queue/item/arguments")
+async def queue_item_arguments_handler(
+    payload: dict = {},
+    principal=Security(get_current_principal, scopes=["read:queue"]),
+    settings: BaseSettings = Depends(get_settings),
+    api_access_manager=Depends(get_api_access_manager),
+    resource_access_manager=Depends(get_resource_access_manager),
+):
+    """
+    Adds new plan to the queue
+    """
+    try:
+        plans_msg = await SR.RM.plans_existing()
+        devices_msg = await SR.RM.devices_existing()
+        plans_existing = plans_msg["plans_existing"]
+        devices_existing = devices_msg["devices_existing"]
+
+        try:
+            item = payload.get("item", None)
+            if item is None:
+                raise ValueError("Payload does not contain 'item' key")
+            item = plan_bind_args(item, plans_existing, devices_existing)
+            success, msg = True, ""
+        except Exception as ex:
+            success = False
+            msg = f"Failed to bind arguments for the item: {ex}"
+
+        response = {"success": success, "msg": msg, "item": item}
+    except Exception:
+        process_exception()
+
+    return response
+
+
+# ========================================================================
+
+
 @router.get("/devices/allowed")
 async def devices_allowed_handler(
     payload: dict = {},