Grammarly MCP Server

Automates Grammarly's web interface to check AI detection and plagiarism scores, then uses Claude to iteratively rewrite text until it meets target thresholds for humanized content.

→ BjornMelin/grammarly-mcp · listed on 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.

Install from

Glama

M8ven verifies MCPs across every public registry — install directly from whichever one you prefer.

// 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 4 credentials: ANTHROPIC_API_KEY, CLAUDE_API_KEY, GOOGLE_GENERATIVE_AI_API_KEY, OPENAI_API_KEY

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

// known CVEs in dependencies1 critical2 high1 low

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

criticalvitest@4.0.15GHSA-5xrq-8626-4rwp

When Vitest UI server is listening, arbitrary file can be read and executed

high@modelcontextprotocol/sdk@1.24.3GHSA-345p-7cg4-v4c7

@modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuse

high@modelcontextprotocol/sdk@1.24.3GHSA-8r9q-7v3j-jr4g

Anthropic's MCP TypeScript SDK has a ReDoS vulnerability

lowai@5.0.0GHSA-rwvc-j5jr-mgvh

Vercel’s AI SDK's filetype whitelists can be bypassed when uploading files

Depend on this server? Get alerted when its CVEs change.Watch this server free →

// required environment variables

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

🔐 secretANTHROPIC_API_KEY— No\ Anthropic API key. Required when using direct Anthropic provider.

🔐 secretCLAUDE_API_KEY— No Claude API key. If not set, uses claude login CLI auth

🔐 secretGOOGLE_GENERATIVE_AI_API_KEY— No\ Google API key for Gemini models. Also accepts GEMINI_API_KEY

configIGNORE_SYSTEM_ENV— No false When true, ignores shell env vars and uses only .env file. Prevents IDE-inherited env pollution.

🔐 secretOPENAI_API_KEY— No\ OpenAI API key. Required when using OpenAI provider.

configSETUP_LOG_LEVEL

// 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/bjornmelin-grammarly-mcp-6mzwik)](https://m8ven.ai/mcp/bjornmelin-grammarly-mcp-6mzwik)

commit: 172604b8f643fd5d4e4445151eba72f7c79055ad

code hash: 658867bb5caa18b8bc7ea207e5841fe5ae31e40cbdc997c39fd708d509538ca3

verified: 6/18/2026, 11:49:03 AM

view raw JSON →