tcpping-mcp-server 0.1.4

A modern MCP server for TCP ping testing via pingloc.com

tcpping MCP Server (stdio)

Minimal TCP latency probe server for MCP clients (e.g. GitHub Copilot Agents) using Playwright + FastMCP.

0.1.4: Added resilient fallback parsing (summary pattern search + heuristic row scan) and debug artifacts when structure changes on pingloc.com.

1. Add to your MCP client config

Example (mcp.json / Copilot Agents user settings):

"tcpping-mcp-server": {
	"type": "stdio",
	"command": "uvx",
	"args": [
		"tcpping-mcp-server"
	]
}

uvx will fetch & run the published script (or local cache) by name. You can also swap for python -m tcpping_mcp_stdio.modern_server if installed in a venv.

2. Available tool

Tool name: tcpping_run

Parameters (all optional unless noted):

• target (str, required) – domain or URL (scheme optional)
• port (int, default 443)
• timeout (float, default 120)
• retries (int, default 1)
• headless (bool, default true)
• browser_channel (str, default "msedge")
• debug (bool, default false) – dump HTML/screenshot if no rows
• summary_only (bool, default false) – return compact summary

3. Example call (conceptual JSON-RPC)

{
	"jsonrpc": "2.0",
	"id": "1",
	"method": "tools/call",
	"params": {
		"name": "tcpping_run",
		"arguments": { "target": "example.com", "summary_only": true }
	}
}

4. Local install (optional)

pip install tcpping-mcp-server
tcpping-mcp-server  # or: python -m tcpping_mcp_stdio.modern_server

5. Playwright browser dependency

First run will auto-download browsers when using uvx or after pip install. If needed manually:

playwright install chromium

6. Output

Returns a JSON string (you may need to parse once):

{
	"host": "example.com:443",
	"summary": { ... },
	"probes": [ ... ],
	"probe_count": 25,
	"timeouts": 0,
	"duration_sec": 12.34
}

7. Debugging

Set debug=true to dump HTML + screenshot into tcpping/debug/ when no probe rows captured.

---

Concise goal: drop the snippet above into your MCP client config and start using tcpping_run.

8. Release / Publish (maintainers)

Workflow using uv:

1. Bump version in pyproject.toml and src/tcpping_mcp_stdio/modern_server.py (the VERSION constant). Use semver.
2. Clean previous builds (optional):

   Remove-Item dist -Recurse -Force -ErrorAction SilentlyContinue
   

3. Build artifacts:

   uv build
   

4. (Optional) TestPyPI dry run:

   $Env:TEST_PYPI_API_TOKEN = 'pypi-AgENdGVzdC4uLg=='  # your TestPyPI token
   uv publish --repository testpypi --token $Env:TEST_PYPI_API_TOKEN
   

5. Publish to PyPI:

   $Env:PYPI_API_TOKEN = 'pypi-AgEN...'   # never commit this
   uv publish --token $Env:PYPI_API_TOKEN
   

6. Verify installation:

   uvx tcpping-mcp-server --help
   

7. Tag in git (optional but recommended):

   git tag v<version>
   git push origin v<version>
   

If uv publish reports missing token, ensure the environment variable name matches the one you pass after --token.