posthog-mcp

Item: posthog-mcp
Rating: 52
Author: M8ven

Enables AI agents to query PostHog analytics data directly via tool calls, including insights, events, feature flags, trends, and persons.

→ johnnikolo/posthog-mcp · listed on glama

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// key findings

🚨

Secret credentials may flow to a network call

1 flow detected: POSTHOG_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: POSTHOG_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@1.12.0GHSA-345p-7cg4-v4c7

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

high@modelcontextprotocol/sdk@1.12.0GHSA-8r9q-7v3j-jr4g

Anthropic's MCP TypeScript SDK has a ReDoS vulnerability

high@modelcontextprotocol/sdk@1.12.0GHSA-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.

🔐 secretPOSTHOG_API_KEY— Yes — Your PostHog personal API key

configPOSTHOG_HOST— No https://app.posthog.com Override for self-hosted PostHog instances

configPOSTHOG_PROJECT_ID— Yes — The numeric project ID to query

// 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 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 Score](https://m8ven.ai/badge/mcp/johnnikolo-posthog-mcp-ijr84u)](https://m8ven.ai/mcp/johnnikolo-posthog-mcp-ijr84u)

commit: 19c57fc135394e91068dc3fd2606fc180a7c4ae1

code hash: 66cdbb3ab4af973cee89e256e58cdf2400436168bc17820ccf6adb020b3f1cfb

verified: 7/1/2026, 9:59:49 AM

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