Oncalls MCP Server

by jacobmr

MCP server for OnCalls physician on-call scheduling system

Node.jsstdio

context tax

pending

security

pending

cold start

pending

freshness

pending

Our reading of Oncalls, from the data

Oncalls is a calendar & scheduling MCP server from jacobmr.

We haven't measured its tool list yet, so its token cost is unknown.

It runs locally on your machine over stdio.

Install Oncalls MCP server

claude mcp add oncalls -- npx -y mcp-server-oncalls

{
  "mcpServers": {
    "oncalls": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-server-oncalls"
      ]
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).

{
  "mcpServers": {
    "oncalls": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-server-oncalls"
      ]
    }
  }
}

Settings → Developer → Edit Config (claude_desktop_config.json), then restart.

{
  "servers": {
    "oncalls": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "mcp-server-oncalls"
      ]
    }
  }
}

Add to .vscode/mcp.json in your workspace.

{
  "mcpServers": {
    "oncalls": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-server-oncalls"
      ]
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json.

Freshness

Not enough public signals yet to judge maintenance.

Last commit (default branch)
no data · GitHub
Latest release
no data · GitHub
Package published
no data · npm/PyPI
Registry entry updated
no data · official registry

How it compares in Calendar & Scheduling

Against the most-starred calendar & scheduling servers we index. Token cost is per model turn, measured from each server's live tool list.

Server	Stars	Tools	Tokens / turn	Freshness	Runs
Oncalls (this)	—	—	not measured	—	local
Google Workspace	3,370	—	not measured	Active	—
Vexa	2,889	—	not measured	Active	hosted
Minutes	1,557	—	not measured	Active	local
Google Calendar	1,200	—	not measured	—	local
Microsoft 365	1,058	—	not measured	Active	local

All calendar & scheduling MCP servers

FAQ

›How do I install the Oncalls MCP server in Claude Code?

Run: claude mcp add oncalls -- npx -y mcp-server-oncalls. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.

›Does Oncalls require an API key?

No required environment variables are declared in its published metadata.

›Can I use Oncalls as a remote (hosted) MCP server?

No hosted endpoint is published; it runs locally over stdio.

›Is Oncalls in the official MCP registry?

No. It was indexed from npm.

Sources and method

Package registry (npm / PyPI): listed
Last checked against all sources: 2026-10-19

The description, packages and links come from the maintainer's own published metadata. Token cost, security signals, freshness and the reading above are MCPSkillHub's own measurements; see the methodology. Spot an error? Request a correction or claim the listing.