Modular Outlook MCP Server

MCP server for Claude to access Outlook data via Microsoft Graph API

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// key findings

🚨

Known vulnerabilities in dependencies: 1 critical, 1 high

Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.

⚠️

Tests do not pass

Either the test suite is broken or the code regressed. Either way the published behaviour can’t be verified by the publisher’s own tests.

🔐

You'll be asked for 3 credentials: MS_CLIENT_SECRET, MYAPP_CLIENT_SECRET, OUTLOOK_CLIENT_SECRET

These are read from process.env at runtime. Make sure you trust where they’ll be sent.

// required environment variables

This server reads these from process.env. You'll be asked to provide them before it can run.

configMS_AUTHORITY_HOST

configMS_CLIENT_ID— your-application-client-id-here

🔐 secretMS_CLIENT_SECRET— your-client-secret-VALUE-here

configMS_REDIRECT_URI

configMS_SCOPES

configMS_TENANT_ID— your-tenant-id-here

configMS_TOKEN_ENDPOINT

configMYAPP_AUTHORITY_HOST

configMYAPP_AUTH_ENDPOINT

configMYAPP_CLIENT_ID

🔐 secretMYAPP_CLIENT_SECRET

configMYAPP_REDIRECT_URI

configMYAPP_SCOPES

configMYAPP_TENANT_ID

configMYAPP_TOKEN_ENDPOINT

configOUTLOOK_CLIENT_ID— For Claude Desktop config, you'll use and OUTLOOK_CLIENT_SECRET

🔐 secretOUTLOOK_CLIENT_SECRET— For Claude Desktop config, you'll use OUTLOOK_CLIENT_ID and

configUSE_TEST_MODE— "": "false",

// full audit trail

The full breakdown of what we checked, the deductions that landed, the network hosts, the dependency advisories, and concrete fix guidance is available to verified publishers.

// improvement guidance — verified publishers only

We have 4 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.

// embed badge in your README

[![M8ven Score](https://m8ven.ai/badge/mcp/ryaker-outlook-mcp-kf87jk)](https://m8ven.ai/mcp/ryaker-outlook-mcp-kf87jk)

commit: 95d6ff2d248903c086f17782c2de28e16016e6aa

code hash: 8c438d91ba646b8385358473c4afe864809d615457b56269f1349cb7f0ff25c0

verified: 5/31/2026, 10:08:39 AM

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