Microsoft Calendar (Outlook Calendar) MCP server for managing events via Microsoft Graph.
Connect Runs on your machine
claude mcp add ms-calendar-mcp -e MICROSOFT_CLIENT_ID=<MICROSOFT_CLIENT_ID> -- npx -y [email protected]
{
"mcpServers": {
"ms-calendar-mcp": {
"command": "npx",
"args": [
"-y",
"[email protected]"
],
"env": {
"MICROSOFT_CLIENT_ID": "<MICROSOFT_CLIENT_ID>"
}
}
}
}
{
"mcpServers": {
"ms-calendar-mcp": {
"command": "npx",
"args": [
"-y",
"[email protected]"
],
"env": {
"MICROSOFT_CLIENT_ID": "<MICROSOFT_CLIENT_ID>"
}
}
}
}
{
"servers": {
"ms-calendar-mcp": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"[email protected]"
],
"env": {
"MICROSOFT_CLIENT_ID": "<MICROSOFT_CLIENT_ID>"
}
}
}
}
Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.
Tools
This server runs locally, so its tools are listed by your MCP client once it starts.
Environment variables
| Name | Description |
|---|---|
MICROSOFT_CLIENT_IDOptional | Entra ID application (client) ID for the public client app used to sign in. Run `npx -y ms-calendar-mcp login` once to cache a refresh token. |
Details
| Package | [email protected] (NPM, stdio) |
| First published | 8 Jun 2026 |
| Last updated | 8 Jun 2026 |
| Registry name | io.github.0xka13b/ms-calendar-mcp |
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