Beehiiv MCP

Item: Beehiiv MCP
Rating: 62
Author: M8ven

An MCP server that integrates with the Beehiiv newsletter platform to retrieve subscriber information with filtering, pagination, and optional expanded data.

→ martymarkenson/beehiiv-mcp · listed on glama

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// key findings

🚨

Secret credentials may flow to a network call

1 flow detected: BEEHIIV_API_KEY. We can’t prove the destination matches the brand the credential belongs to.

⚠️

Known vulnerabilities in dependencies: 3 high

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

🔐

You'll be asked for 1 credential: BEEHIIV_API_KEY

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

// known CVEs in dependencies3 high

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

high@modelcontextprotocol/sdk@1.18.1GHSA-345p-7cg4-v4c7

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

high@modelcontextprotocol/sdk@1.18.1GHSA-8r9q-7v3j-jr4g

Anthropic's MCP TypeScript SDK has a ReDoS vulnerability

high@modelcontextprotocol/sdk@1.18.1GHSA-w48q-cv73-mx4w

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

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// required environment variables

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

🔐 secretBEEHIIV_API_KEY— your Beehiiv API key

configBEEHIIV_PUBLICATION_ID— your Beehiiv publication ID

// 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/martymarkenson-beehiiv-mcp-1fhdyx)](https://m8ven.ai/mcp/martymarkenson-beehiiv-mcp-1fhdyx)

commit: 21a2f0c2126d72706d6070b2faeb38f0bec48772

code hash: 7f5d886734847097f1332bb56662d3d1b3e4aa7bf03a0423572d53236bcb054e

verified: 6/21/2026, 10:17:29 AM

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