@storybook/mcp

Storybook MCP by Storybook

MCP server that serves knowledge about your components based on your Storybook stories and documentation

Live Registry Versionv10.6.3Previous: v10.6.2Published 2026-10-20

Stability Grade

B+ (86/100)

90-Day Velocity

4 releases

Stable release cadence

Dependencies

4 direct

NPM manifest

License

MIT

Verified on NPM

Recommended Exact Pin: npx -y @storybook/mcp@10.6.3

NPM Registry ->GitHub Repo ->

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

Storybook MCP (@storybook/mcp) is currently at v10.6.3 on NPM (published 2026-10-20), with a 90-day stability score of 86/100 (B+) and MEDIUM schema drift risk across 4 releases in the past 90 days. recent release v10.6.3 (up from v10.6.2) updates Design & UI MCP tool schemas and transport handling (4 releases in last 90d). Pin exact version v10.6.3 in .mcp.json to avoid silent parameter drift. Production teams should pin npx -y @storybook/mcp@10.6.3 rather than using unpinned @latest tags.

Breaking Changes & Tool Schema Drift Analysis

recent release v10.6.3 (up from v10.6.2) updates Design & UI MCP tool schemas and transport handling (4 releases in last 90d). Pin exact version v10.6.3 in .mcp.json to avoid silent parameter drift.

Watched Exports / MCP Tool Signatures:

tools/listtools/callmcp

Before (Deprecated / Unpinned Pattern)

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

After (Verified v10.6.3 Pattern)

"storybook-mcp": {
  "command": "npx",
  "args": ["-y", "@storybook/mcp@10.6.3"]
}

Frequently Asked Questions: @storybook/mcp

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

As of 2026-10-24, the latest stable version of @storybook/mcp (Storybook MCP by Storybook) on NPM is v10.6.3, published on 2026-10-20. It has shipped 4 releases in the last 90 days.

Does @storybook/mcp v10.6.3 have breaking changes or MCP schema drift risk?

@storybook/mcp currently carries a MEDIUM schema drift risk rating with a Stability Score of 86/100 (Grade B+). recent release v10.6.3 (up from v10.6.2) updates Design & UI MCP tool schemas and transport handling (4 releases in last 90d). Pin exact version v10.6.3 in .mcp.json to avoid silent parameter drift.

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

Avoid unpinned @latest tags in production agent configs. Pin the exact verified version using `npx -y @storybook/mcp@10.6.3` and monitor tools/list, tools/call, mcp for parameter or schema changes.

30-Min Registry & Schema Poller