mcp server

office-outlook-mcp

Outlook / Microsoft 365 MCP server for Claude — mail, calendar, contacts and tasks, using your signed-in browser session to mint an access token

chrischall/office-outlook-mcpcommunitylistedunreviewed

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The repository states no licence, so by default nobody may reuse it. We only link to it. Setup instructions and the README are on the project's own page.

Where it runs

Can be installed on your computer
Cloud support not yet determined

Requirements

OUTLOOK_ACCESS_TOKENoptional
Pre-obtained Outlook bearer token. Overrides the browser bridge. Power users / CI only; tokens last about 25 hours.
OUTLOOK_DISABLE_FETCHPROXYoptional
Set to '1' to disable browser capture, requiring OUTLOOK_ACCESS_TOKEN.
OUTLOOK_API_BASEoptional
Override the Outlook REST base URL. Defaults to https://outlook.office.com/api/v2.0.
OUTLOOK_WS_PORToptional
fetchproxy concentrator port used for token capture. Defaults to 37149, the fleet-wide shared port.
OUTLOOK_CAPTURE_TIMEOUToptional
Seconds to wait for the Outlook tab to make a request we can read a token from. Defaults to 30.
OUTLOOK_TOKEN_CACHEoptional
Set to 'false' to stop caching the captured token between runs. Defaults to true.
OUTLOOK_TOKEN_FILEoptional
Path to the cached token file. Defaults to ~/.office-outlook-mcp/token.json.
FETCHPROXY_WS_HOSToptional
Bind interface for the fetchproxy concentrator, a literal IP only (default 127.0.0.1). Keep on loopback; it exists for hosted deployments that run each MCP in its own network namespace.
FETCHPROXY_IDENTITY_DIRoptional
Absolute path where the fetchproxy long-term identity keypair is stored (default ~/.fetchproxy/identity/).
MCP_CONFIRM_MODEoptional
What outlook_send_mail, outlook_reply, outlook_respond_to_invite and the other write tools do on a client that cannot show a confirmation prompt (claude.ai, Claude Desktop): "ask-user" (default: the f
MCP_CONFIRM_ELICITATIONoptional
"off" never shows a confirmation prompt, so every client gets the MCP_CONFIRM_MODE flow. Set it for a client that says it can show prompts but never does. Defaults to on.
MCP_CONFIRM_TTL_SECONDSoptional
How long a confirmToken stays valid, in seconds. Defaults to 600.
MCP_CONFIRM_SECREToptional
Signing key for confirmTokens. Random per process by default; set it only if tokens must survive a server restart.

Cost

Free on Conduit. This tool does not call a paid external service.

Details

License: None found
License type: No licence
Last commit: Oct 17, 2026
Runtime: Node.js
Language: TypeScript
Transport: stdio
Access: No key needed
Last synced: Oct 17, 2026

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Productivity Browser & web Cloud & infrastructure