unable to import StdioServerParameters

[Mahesh5h9]

I previously worked with the Notion MCP about three weeks ago, and it was working fine at that time. However, all of a sudden, it stopped working. I then tried using the Filesystem MCP and Maps MCP, but faced issues there as well.

https://github.com/google/adk-samples/blob/main/python/agents/travel-concierge/tests/mcp_abnb.py
https://google.github.io/adk-docs/tools/mcp-tools/#step-2-define-your-agent-with-mcptoolset-for-google-maps

In particular, I'm unable to import StdioServerParameters:

from google.adk.tools.mcp_tool.mcp_toolset import MCPToolset, StdioServerParameters

StdioServerParameters(
command="npx",
args=["-y", "@notionhq/notion-mcp-server"],
env={"OPENAPI_MCP_HEADERS": NOTION_MCP_HEADERS},
)

I also tried importing it by mcp:
from mcp.client.stdio import StdioServerParameters

But that didn’t work either.

MCPToolset(
connection_params=StreamableHTTPConnectionParams(
url="https://api.githubcopilot.com/mcp/",
headers={
"Authorization": "Bearer " + str(os.getenv("GITHUB_PERSONAL_ACCESS_TOKEN")),
},
),
)

So it seems like StreamableHTTPConnectionParams is working fine, but there’s an issue with StdioServerParameters.

[ivanmkc]

I could not reproduce this using python 3.11.

Can you try running:

python

from google.adk.tools.mcp_tool.mcp_toolset import MCPToolset, StdioServerParameters

?

Please re-open if you still see an issue.

[ivanmkc]

Actually, here's my guess at what's happening.

The version of adk as defined in pyproject.toml is:

google-adk = "^1.0.0"

You might be using another version, where in later versions, they did remove StdioServerParameters and just imported it from mcp directly, like:

from mcp import StdioServerParameters

The fix is to create a new venv and install the dependencies for this sample:

poetry install

And for @gkcng to update the deps for the latest version of ADK.