Outlook MCP runs on your own machine — the client starts it, so there is no endpoint to ping. Last commit 7 Oct 2026.
Microsoft Outlook MCP server — 20 tools for email, calendar, contacts, and settings via Graph API.
What the code does
We read the source, 7 d ago · rules 995398eba69f
A value the model can set ends up inside a file or shell call. That is not a flaw by itself — for a terminal server it is the job — but it is where things go wrong when it is not.
fs.writeFileSync(outputPath, buffer);
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.
current = path.join(current, segment);
Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.
A tool parameter here reaches a dangerous call
That is not a flaw by itself — but it is where things go wrong when it is not the job. We re-read this code on every release. Watch it and you hear from us the day another one appears.
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 outlook-mcp -e 'OUTLOOK_CLIENT_ID=<OUTLOOK_CLIENT_ID>' -e 'OUTLOOK_CLIENT_SECRET=<OUTLOOK_CLIENT_SECRET>' -- npx -y @littlebearapps/outlook-mcp{
"mcpServers": {
"outlook-mcp": {
"command": "npx",
"args": [
"-y",
"@littlebearapps/outlook-mcp"
],
"env": {
"OUTLOOK_CLIENT_ID": "<OUTLOOK_CLIENT_ID>",
"OUTLOOK_CLIENT_SECRET": "<OUTLOOK_CLIENT_SECRET>"
}
}
}
}[mcp_servers.outlook-mcp]
command = "npx"
args = ["-y", "@littlebearapps/outlook-mcp"]
env = { OUTLOOK_CLIENT_ID = "<OUTLOOK_CLIENT_ID>", OUTLOOK_CLIENT_SECRET = "<OUTLOOK_CLIENT_SECRET>" }{
"mcpServers": {
"outlook-mcp": {
"command": "npx",
"args": [
"-y",
"@littlebearapps/outlook-mcp"
],
"env": {
"OUTLOOK_CLIENT_ID": "<OUTLOOK_CLIENT_ID>",
"OUTLOOK_CLIENT_SECRET": "<OUTLOOK_CLIENT_SECRET>"
}
}
}
}{
"servers": {
"outlook-mcp": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@littlebearapps/outlook-mcp"
],
"env": {
"OUTLOOK_CLIENT_ID": "<OUTLOOK_CLIENT_ID>",
"OUTLOOK_CLIENT_SECRET": "<OUTLOOK_CLIENT_SECRET>"
}
}
}
}Put your own values in place of
<OUTLOOK_CLIENT_ID> (Azure AD application client ID), <OUTLOOK_CLIENT_SECRET> (Azure AD application client secret value).
The author’s registry entry marks them as required.
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Answers built from our own checks of this server.