Google Calendar runs on your own machine — the client starts it, so there is no endpoint to ping. 144 installs a week from npm. Last commit 30 Aug 2026.
MCP server for Google Calendar integration with service account support and domain-wide delegation.
What the code does
We read the source, 3 d ago · rules 995398eba69f
What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.
этот файл ставится пользователю, но в репозитории его нет
const initProcess = spawn(this.claudeCodePath, args, {
Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.
This code can reach further than it looks
We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.
Connect this server
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add google-calendar -e 'GCAL_SERVICE_ACCOUNT_CLIENT_EMAIL=<GCAL_SERVICE_ACCOUNT_CLIENT_EMAIL>' -e 'GCAL_SERVICE_ACCOUNT_PRIVATE_KEY=<GCAL_SERVICE_ACCOUNT_PRIVATE_KEY>' -e 'GCAL_IMPERSONATE_EMAIL=<GCAL_IMPERSONATE_EMAIL>' -- npx -y google-calendar-workspace-mcp-server{
"mcpServers": {
"google-calendar": {
"command": "npx",
"args": [
"-y",
"google-calendar-workspace-mcp-server"
],
"env": {
"GCAL_IMPERSONATE_EMAIL": "<GCAL_IMPERSONATE_EMAIL>",
"GCAL_SERVICE_ACCOUNT_CLIENT_EMAIL": "<GCAL_SERVICE_ACCOUNT_CLIENT_EMAIL>",
"GCAL_SERVICE_ACCOUNT_PRIVATE_KEY": "<GCAL_SERVICE_ACCOUNT_PRIVATE_KEY>"
}
}
}
}[mcp_servers.google-calendar]
command = "npx"
args = ["-y", "google-calendar-workspace-mcp-server"]
env = { GCAL_SERVICE_ACCOUNT_CLIENT_EMAIL = "<GCAL_SERVICE_ACCOUNT_CLIENT_EMAIL>", GCAL_SERVICE_ACCOUNT_PRIVATE_KEY = "<GCAL_SERVICE_ACCOUNT_PRIVATE_KEY>", GCAL_IMPERSONATE_EMAIL = "<GCAL_IMPERSONATE_EMAIL>" }{
"mcpServers": {
"google-calendar": {
"command": "npx",
"args": [
"-y",
"google-calendar-workspace-mcp-server"
],
"env": {
"GCAL_IMPERSONATE_EMAIL": "<GCAL_IMPERSONATE_EMAIL>",
"GCAL_SERVICE_ACCOUNT_CLIENT_EMAIL": "<GCAL_SERVICE_ACCOUNT_CLIENT_EMAIL>",
"GCAL_SERVICE_ACCOUNT_PRIVATE_KEY": "<GCAL_SERVICE_ACCOUNT_PRIVATE_KEY>"
}
}
}
}{
"servers": {
"google-calendar": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"google-calendar-workspace-mcp-server"
],
"env": {
"GCAL_IMPERSONATE_EMAIL": "<GCAL_IMPERSONATE_EMAIL>",
"GCAL_SERVICE_ACCOUNT_CLIENT_EMAIL": "<GCAL_SERVICE_ACCOUNT_CLIENT_EMAIL>",
"GCAL_SERVICE_ACCOUNT_PRIVATE_KEY": "<GCAL_SERVICE_ACCOUNT_PRIVATE_KEY>"
}
}
}
}Put your own values in place of
<GCAL_SERVICE_ACCOUNT_CLIENT_EMAIL> (Service account email address from Google Cloud Console), <GCAL_SERVICE_ACCOUNT_PRIVATE_KEY> (Service account private key in PEM format from Google Cloud Console), <GCAL_IMPERSONATE_EMAIL> (Email address of the user whose calendar to access via domain-wide delegation).
The author’s registry entry marks them as required.
Optional settings from the registry entry, left out of the block above:
ENABLED_TOOLGROUPS (Comma-separated list of tool groups to enable (readonly or readwrite)).
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Google Calendar — questions
Answers built from our own checks of this server.