mcp-pulse
Drop-in observability for MCP servers. Track tool calls, latency, errors, and usage with one line of code.
Install
pip install mcp-pulse
Quick Start
from mcp_pulse import ObserveMCP
# Replace FastMCP with ObserveMCP — that's it
mcp = ObserveMCP("my-server")
@mcp.tool()
def my_tool(param: str) -> str:
"""My tool description."""
return f"result for {param}"
mcp.run(transport="stdio")
Every tool call is now automatically tracked — tool name, duration, success/failure, response size.
Dashboard
pip install mcp-pulse[dashboard]
mcp-pulse
Opens a web dashboard at http://localhost:8020 showing:
- Total calls, error rate, avg latency
- Calls per hour chart
- Per-tool breakdown (call count, p50/p95 latency, error rate)
- Recent call log
Alternative: Wrap an existing server
from mcp.server.fastmcp import FastMCP
from mcp_pulse import observe
mcp = FastMCP("my-server")
@mcp.tool()
def my_tool(param: str) -> str:
return f"result for {param}"
observe(mcp) # instruments all registered tools
mcp.run(transport="stdio")
Options
mcp = ObserveMCP(
"my-server",
db_path="/path/to/custom.db", # default: ~/.mcp-pulse/observe.db
log_params=True, # log input parameters (default: False)
)
License
MIT
1 maintainer
Metadata
1 maintainer
Release files for mcp-pulse 0.1.1
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Source distribution (sdist)
| File | Size | Uploaded | Provenance | |
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| mcp_pulse-0.1.1.tar.gz | 11.1 kB | With provenance | Details |
Built distribution (wheel)
| File | Interpreter | ABI | Platform | Reset |
|---|---|---|---|---|
| mcp_pulse-0.1.1-py3-none-any.whl | Python 3 | none | any | Details |
Total release size: 23.3 kB
Release files / mcp_pulse-0.1.1.tar.gz
| Download URL | mcp_pulse-0.1.1.tar.gz |
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| Size | 11.1 kB |
| Tags | Source |
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| Tags | Python 3 |
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Signed by GitHub Actions, verified by PyPI on Apr 6, 2026.
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