Microsoft Outlook MCP server — 22 tools for email, calendar, contacts, and mailbox management.
Connect Runs on your machine
claude mcp add outlook-assistant -e OUTLOOK_CLIENT_ID=<OUTLOOK_CLIENT_ID> -e OUTLOOK_CLIENT_SECRET=<OUTLOOK_CLIENT_SECRET> -- npx -y @littlebearapps/[email protected]{
"mcpServers": {
"outlook-assistant": {
"command": "npx",
"args": [
"-y",
"@littlebearapps/[email protected]"
],
"env": {
"OUTLOOK_CLIENT_ID": "<OUTLOOK_CLIENT_ID>",
"OUTLOOK_CLIENT_SECRET": "<OUTLOOK_CLIENT_SECRET>"
}
}
}
}{
"mcpServers": {
"outlook-assistant": {
"command": "npx",
"args": [
"-y",
"@littlebearapps/[email protected]"
],
"env": {
"OUTLOOK_CLIENT_ID": "<OUTLOOK_CLIENT_ID>",
"OUTLOOK_CLIENT_SECRET": "<OUTLOOK_CLIENT_SECRET>"
}
}
}
}{
"servers": {
"outlook-assistant": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@littlebearapps/[email protected]"
],
"env": {
"OUTLOOK_CLIENT_ID": "<OUTLOOK_CLIENT_ID>",
"OUTLOOK_CLIENT_SECRET": "<OUTLOOK_CLIENT_SECRET>"
}
}
}
}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 |
|---|---|
OUTLOOK_CLIENT_IDOptional | Azure AD application (client) ID. Optional: if it is not set here, supply it at sign-in with the auth tool (action=authenticate clientId=<id>) |
OUTLOOK_CLIENT_SECRETOptional, secret | Azure AD application client secret value. Only needed for the browser sign-in flow; the default device-code flow doesn't use it |
Details
| Package | @littlebearapps/[email protected] (NPM, stdio) |
| First published | 5 Oct 2026 |
| Last updated | 5 Oct 2026 |
| Registry name | io.github.littlebearapps/outlook-assistant |
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