Both stack‑traces come from very small compatibility issues in **your local copy** of the library.  
Fixing them just needs two tiny edits.

---

## 1  `'Agent' object has no attribute 'mcp_servers'`

`Agent.__init__()` used to take `mcp_servers`, but in your checkout that
parameter line is commented out:

```python
# mcp_servers: List[MCPServerSseParams] = [],
```

Yet `handle_tool_init()` still refers to `self.mcp_servers`, so the
attribute is missing when the object is created.

### Patch

```diff
@@ class Agent:
-        # mcp_servers: List[MCPServerSseParams] = [],
+        mcp_servers: Optional[list] = None,   # list[MCPServerSseParams]

@@ def __init__(...):
-        self.tools_list_dictionary = tools_list_dictionary
-        # self.mcp_servers = mcp_servers
+        self.tools_list_dictionary = tools_list_dictionary
+        self.mcp_servers = mcp_servers
```

> *Nothing else has to change; the `exists(self.mcp_servers)` check will now
> work, and you can pass `mcp_servers=[server_one]` from your smoke‑test.*

---

## 2  `ImportError: cannot import name 'NotRequired' from typing`

`typing.NotRequired` only exists in **Python ≥ 3.11**.  
On 3.10 you have to import it from **`typing_extensions`**.

The top of `swarms/tools/mcp_integration.py` currently has:

```python
from typing import Any, Dict, List, Optional, TypedDict, NotRequired
```

### Patch

```diff
-from typing import Any, Dict, List, Optional, TypedDict, NotRequired
+from typing import Any, Dict, List, Optional
+from typing_extensions import NotRequired, TypedDict
```

(There is already a `typing_extensions` import later, so you can simply reuse
it and remove `NotRequired` from the `typing` line.)

> Make sure the wheel `typing‑extensions` is installed:
> ```bash
> pip install -U typing_extensions
> ```

---

### After the fixes

Your smoke‑test script should run:

```python
from swarms.tools.mcp_integration import MCPServerSseParams
from swarms.prompts.agent_prompts import MATH_AGENT_PROMPT
from swarms import Agent

server_one = MCPServerSseParams(
    url="http://127.0.0.1:6274",
    headers={"Content-Type": "application/json"},
)

agent = Agent(
    agent_name="Math‑Tester",
    agent_description="Does arithmetic via MCP add tool",
    system_prompt=MATH_AGENT_PROMPT,
    max_loops=1,
    mcp_servers=[server_one],
    output_type="final",
)

print(agent.run("Use the add tool to add 2 and 2"))
```

---

**Summary**

* add the `mcp_servers` parameter back into `Agent.__init__`  
* import `NotRequired` from `typing_extensions`, not `typing`

After these two edits the “attribute missing” and “ImportError” messages
disappear and the agent can reach the MCP server for your smoke‑test.