# Posthog MCP (@posthog/mcp) - AgentBreakWatch Reference

> TL;DR Verdict: Posthog MCP (`@posthog/mcp`) is currently at v0.23.0 on NPM (published 2026-10-19), with a 90-day Stability Score of 65/100 (C+) and HIGH schema drift risk across 43 releases in the last 90 days. recent release v0.23.0 (up from v0.22.3) updates Observability MCP tool schemas and transport handling (43 releases in last 90d). Pin exact version v0.23.0 in .mcp.json to avoid silent parameter drift.

## Live Telemetry Metadata
- Canonical Page: https://agentbreakwatch.vercel.app/p/posthog-mcp
- Category Hub: https://agentbreakwatch.vercel.app/c/observability (Observability, Sentry, Datadog & Metrics MCP Servers)
- Package Name: `@posthog/mcp`
- Registry: NPM (https://www.npmjs.com/package/@posthog/mcp)
- GitHub Repository: https://github.com/PostHog/posthog-js
- Vendor: Posthog
- Latest Live Version: v0.23.0
- Published Date: 2026-10-19T14:47:04.172Z
- 90-Day Release Count: 43
- Direct Dependencies: 1
- License: MIT
- Stability Score: 65/100 (Grade C+)
- Schema Drift Risk: HIGH
- Recommended Exact Pin Command: `npx -y @posthog/mcp@0.23.0`
- Watched Symbols / MCP Tools: tools/list, tools/call, mcp
- Snapshot Timestamp: 2026-10-24T12:11:27.697Z

## Breaking Change & Schema Drift Summary
recent release v0.23.0 (up from v0.22.3) updates Observability MCP tool schemas and transport handling (43 releases in last 90d). Pin exact version v0.23.0 in .mcp.json to avoid silent parameter drift.

## Migration Diff: Before (Deprecated / Unpinned Pattern)
```
"posthog-mcp": {
  "command": "npx",
  "args": ["-y", "@posthog/mcp@latest"]
}
```

## Migration Diff: After (Verified v0.23.0 Pattern)
```
"posthog-mcp": {
  "command": "npx",
  "args": ["-y", "@posthog/mcp@0.23.0"]
}
```

## Recent Verified Releases
- v0.23.0 (published 2026-10-19) [LATEST]
- v0.22.3 (published 2026-10-09)
- v0.22.2 (published 2026-10-07)
- v0.22.1 (published 2026-10-06)
- v0.22.0 (published 2026-10-05)
- v0.21.4 (published 2026-10-02)