@growthbook/mcp

Growthbook MCP by Growthbook

Thin MCP server for GrowthBook - skill loader + authenticated API passthrough

Live Registry Versionv2.2.0Previous: v2.1.0Published 2026-10-06

Stability Grade

B+ (86/100)

90-Day Velocity

3 releases

Stable release cadence

Dependencies

3 direct

NPM manifest

License

MIT

Verified on NPM

Recommended Exact Pin: npx -y @growthbook/mcp@2.2.0

NPM Registry ->GitHub Repo ->

TL;DR Verdict & Quick Citation Summary (2026-10-24)Source: AgentBreakWatch Live NPM Index

Growthbook MCP (@growthbook/mcp) is currently at v2.2.0 on NPM (published 2026-10-06), with a 90-day stability score of 86/100 (B+) and MEDIUM schema drift risk across 3 releases in the past 90 days. Built on MCP SDK (^1.27.1); recent release v2.2.0 (up from v2.1.0) updates Developer Tools MCP tool schemas and transport handling (3 releases in last 90d). Pin exact version v2.2.0 in .mcp.json to avoid silent parameter drift. Production teams should pin npx -y @growthbook/mcp@2.2.0 rather than using unpinned @latest tags.

Breaking Changes & Tool Schema Drift Analysis

Built on MCP SDK (^1.27.1); recent release v2.2.0 (up from v2.1.0) updates Developer Tools MCP tool schemas and transport handling (3 releases in last 90d). Pin exact version v2.2.0 in .mcp.json to avoid silent parameter drift.

Watched Exports / MCP Tool Signatures:

mcptools/listtools/call

Before (Deprecated / Unpinned Pattern)

"growthbook-mcp": {
  "command": "npx",
  "args": ["-y", "@growthbook/mcp@latest"]
}

After (Verified v2.2.0 Pattern)

"growthbook-mcp": {
  "command": "npx",
  "args": ["-y", "@growthbook/mcp@2.2.0"]
}

Frequently Asked Questions: @growthbook/mcp

What is the latest version of @growthbook/mcp on NPM?

As of 2026-10-24, the latest stable version of @growthbook/mcp (Growthbook MCP by Growthbook) on NPM is v2.2.0, published on 2026-10-06. It has shipped 3 releases in the last 90 days.

Does @growthbook/mcp v2.2.0 have breaking changes or MCP schema drift risk?

@growthbook/mcp currently carries a MEDIUM schema drift risk rating with a Stability Score of 86/100 (Grade B+). Built on MCP SDK (^1.27.1); recent release v2.2.0 (up from v2.1.0) updates Developer Tools MCP tool schemas and transport handling (3 releases in last 90d). Pin exact version v2.2.0 in .mcp.json to avoid silent parameter drift.

How do I safely pin @growthbook/mcp in production?

Avoid unpinned @latest tags in production agent configs. Pin the exact verified version using `npx -y @growthbook/mcp@2.2.0` and monitor mcp, tools/list, tools/call for parameter or schema changes.

30-Min Registry & Schema Poller

Get Instant Breaking-Change Alerts for @growthbook/mcp

We poll NPM and growthbook/growthbook-mcp every 30 minutes. Get an email with the exact diff when @growthbook/mcp ships a breaking release beyond v2.2.0.