Office MCP Server (hvkshetry/office-365-mcp-server) is an MCP server listed on the M8ven Trust Index. It scores 74 out of 100, grade C. It declares 19 tools. No publisher has claimed this listing.

C
Caution
74/100

Office MCP Server

Connects Claude with Microsoft 365 services such as Email, Calendar, Teams, OneDrive, and more through the Microsoft Graph API.

Caution. Specific findings reduced this grade. They are listed on the page. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.

How we verified

⚡ Live Monitored: not connected

Verified is a snapshot. Live keeps it current, and builds your track record.

⚡ Connect GitHub → continuous verification on every pushwhy connect →

Who stands behind it

hvkshetry

Source: Glama

Is this your MCP?

Claim it to get a verified publisher badge, a free copy of our full audit findings, and direct contact for any high-priority issues we find. Or connect your repo for our deepest verification, Live Monitored: read-only, revoke anytime. What we access →

Install from

The grade above is for the source repository. Registries can serve a different version, so we mark the ones we were not able to read.

// key findings
🚨
Known vulnerabilities in dependencies: 1 critical, 2 high
Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.
🔐
You'll be asked for 2 credentials: COMMUNICATION_AGENT_AUDIT_TOKEN, OFFICE_CLIENT_SECRET
These are read from process.env at runtime. Make sure you trust where they’ll be sent.
// known CVEs in dependencies1 critical2 high2 low

Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.

critical@modelcontextprotocol/inspector@0.10.2GHSA-7f8r-222p-6f5g

MCP Inspector proxy server lacks authentication between the Inspector client and proxy

high@modelcontextprotocol/sdk@1.1.0GHSA-w48q-cv73-mx4w

Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default

high@modelcontextprotocol/inspector@0.10.2GHSA-g9hg-qhmf-q45m

MCP Inspector is Vulnerable to Potential Command Execution via XSS When Connecting to an Untrusted MCP Server

lowexpress@4.18.2GHSA-qw6h-vgh9-j6wx

express vulnerable to XSS via response.redirect()

lowexpress@4.18.2GHSA-rv95-896h-c2vc

Express.js Open Redirect in malformed URLs

Depend on this server? Get alerted when its CVEs change.Watch this server free →
// environment variables
To run this server yourself, you supply these values. They go in your own MCP client configuration and stay on your machine. The secret label means the value is sensitive, not that the server mishandles it.
🔐 secretCOMMUNICATION_AGENT_AUDIT_TOKEN
configCOMMUNICATION_AGENT_AUDIT_URL
configCOMMUNICATION_AGENT_POLICY_JSON
configCOMMUNICATION_AGENT_WORK_ITEM_ID
configDEFAULT_TIMEZONE
configHTTP_HOST
configHTTP_PORT
configLEGAL_AGENT_DRAFT_ONLY
configOFFICE_AUDIT_LOG_PATH
configOFFICE_CLIENT_ID9. From the Overview section of the app settings page, copy the "Application (client) ID" and enter it as the in the .env file as well as in the claude-config-sample.json file
🔐 secretOFFICE_CLIENT_SECRET7. Copy the secret value and enter it as the in the .env file as well as in the claude-config-sample.json file
configOFFICE_ENABLE_COPILOT_INSIGHTS
configOFFICE_SENDAS_FALLBACK_MAILBOXES
configOFFICE_SENDAS_TOKEN_PATH
configOFFICE_TENANT_ID
configONEDRIVE_SYNC_PATH
configSERVICE_MODE
configSHAREPOINT_SYMLINK_PATH
configSHAREPOINT_SYNC_PATH
configTRANSPORT_TYPE
configUSE_TEST_MODE
Deployment configuration, supplied by whoever hosts the server. Users are not asked for these.
deployPORT
// quality suggestions

Tool annotations

No tools have read-only/destructive annotations

Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.

All four hints declared on every tool

19/19 tools missing one or more hints — calendar (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); contacts (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); directory (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +16 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.

For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.

Tool test coverage

15/19 tools referenced in tests (79%)

Write tests that reference each tool by name so every tool has at least one test.

Secrets not written to files

1 secret value written to files

Avoid persisting secrets to disk. Keep them in memory or your secret manager.

Production dependencies are patched

0 critical, 1 high severity in production deps — @modelcontextprotocol/sdk@1.1.0 (high), express@4.18.2 (low)

Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.

Dev dependencies

2 critical/high in dev-only deps (does not ship to users)

Upgrade dev dependencies when convenient.

Claim the listing to review these findings one by one and send us a correction where you disagree, straight to the team. Claiming also means we tell you when the grade moves, and reach you first if we find anything urgent.

// full audit trail
The findings above are the summary. The full trail, every check we ran, each deduction, the network hosts observed and the dependency advisories, goes to verified publishers, along with an alert whenever a new one lands. Verified publishers can also review each finding and dispute it in one click. Publisher corrections have sharpened several of our checks this month, because the maintainer knows the codebase better than any scanner.
// improvement guidance — verified publishers only
We have 6 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 Verified](https://m8ven.ai/badge/mcp/hvkshetry/office-365-mcp-server?variant=verified)](https://m8ven.ai/mcp/hvkshetry/office-365-mcp-server)
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commit: 12c9dd358e00576d6b2f18a9480891050a23851c
code hash: 2498bfe7255f08e1513b316d15fd362ef64dfe711911ed2e5aa6c39b382441ed
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