Missive MCP Server

Item: Missive MCP Server
Rating: 68
Author: M8ven

An MCP server that interfaces with the Missive API, enabling Claude to manage email conversations, contacts, and team collaboration.

→ grncdr/missive-mcp · listed on glama

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// key findings

⚠️

Known vulnerabilities in dependencies: 2 high

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

✅

No credential exfiltration, no sensitive file access, no obfuscation

Static analysis found nothing flowing your secrets to unexpected places.

🔐

You'll be asked for 2 credentials: ENCRYPTION_KEY, MISSIVE_API_TOKEN

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

// known CVEs in dependencies2 high1 low

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

high@modelcontextprotocol/sdk@1.0.0GHSA-8r9q-7v3j-jr4g

Anthropic's MCP TypeScript SDK has a ReDoS vulnerability

high@modelcontextprotocol/sdk@1.0.0GHSA-w48q-cv73-mx4w

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

lowzod@3.22.0GHSA-m95q-7qp3-xv42

Zod denial of service vulnerability

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.

configBASE_URL— export ="https://missive-mcp.example.com"

configDATA_DIR— No Directory for storage files (default ./data)

🔐 secretENCRYPTION_KEY— export ="$(openssl rand -hex 32)"

🔐 secretMISSIVE_API_TOKEN— Set the environment variable:

configPORT— No HTTP port (default 3000)

// 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 7 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/grncdr-missive-mcp-1mcbjl)](https://m8ven.ai/mcp/grncdr-missive-mcp-1mcbjl)

commit: 6a92795944dfa5c5499302e7ad071561d227a1b0

code hash: f768d520945dc879e61cceeab97d013870151acb8e57ed776bcd627ebc43a001

verified: 6/10/2026, 11:03:36 AM

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