@lovable.dev/mcp-js

Lovable.dev MCP Js by Lovable.dev

Author MCP servers for Lovable apps. Declare tools with defineTool, register them in defineMcp, and a framework adapter (TanStack or Supabase Edge Functions) emits the route(s) at build time.

Live Registry Versionv3.3.0Previous: v3.2.2Published 2026-10-23

Stability Grade

B (78/100)

90-Day Velocity

32 releases

High release cadence

Dependencies

7 direct

NPM manifest

License

MIT

Verified on NPM

Recommended Exact Pin: npx -y @lovable.dev/mcp-js@3.3.0

NPM Registry ->GitHub Repo ->

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

Lovable.dev MCP Js (@lovable.dev/mcp-js) is currently at v3.3.0 on NPM (published 2026-10-23), with a 90-day stability score of 78/100 (B) and MEDIUM schema drift risk across 32 releases in the past 90 days. Built on MCP SDK (1.28.0); recent release v3.3.0 (up from v3.2.2) updates Database & Backend MCP tool schemas and transport handling (32 releases in last 90d). Pin exact version v3.3.0 in .mcp.json to avoid silent parameter drift. Production teams should pin npx -y @lovable.dev/mcp-js@3.3.0 rather than using unpinned @latest tags.

Breaking Changes & Tool Schema Drift Analysis

Built on MCP SDK (1.28.0); recent release v3.3.0 (up from v3.2.2) updates Database & Backend MCP tool schemas and transport handling (32 releases in last 90d). Pin exact version v3.3.0 in .mcp.json to avoid silent parameter drift.

Watched Exports / MCP Tool Signatures:

lovable-mcp-checklovable-mcp-extract-manifesttools/listtools/call

Before (Deprecated / Unpinned Pattern)

"lovable-dev-mcp-js": {
  "command": "npx",
  "args": ["-y", "@lovable.dev/mcp-js@latest"]
}

After (Verified v3.3.0 Pattern)

"lovable-dev-mcp-js": {
  "command": "npx",
  "args": ["-y", "@lovable.dev/mcp-js@3.3.0"]
}

Frequently Asked Questions: @lovable.dev/mcp-js

What is the latest version of @lovable.dev/mcp-js on NPM?

As of 2026-10-24, the latest stable version of @lovable.dev/mcp-js (Lovable.dev MCP Js by Lovable.dev) on NPM is v3.3.0, published on 2026-10-23. It has shipped 32 releases in the last 90 days.

Does @lovable.dev/mcp-js v3.3.0 have breaking changes or MCP schema drift risk?

@lovable.dev/mcp-js currently carries a MEDIUM schema drift risk rating with a Stability Score of 78/100 (Grade B). Built on MCP SDK (1.28.0); recent release v3.3.0 (up from v3.2.2) updates Database & Backend MCP tool schemas and transport handling (32 releases in last 90d). Pin exact version v3.3.0 in .mcp.json to avoid silent parameter drift.

How do I safely pin @lovable.dev/mcp-js in production?

Avoid unpinned @latest tags in production agent configs. Pin the exact verified version using `npx -y @lovable.dev/mcp-js@3.3.0` and monitor lovable-mcp-check, lovable-mcp-extract-manifest, tools/list, tools/call for parameter or schema changes.

30-Min Registry & Schema Poller

Get Instant Breaking-Change Alerts for @lovable.dev/mcp-js

We poll NPM and lovablelabs/lovable every 30 minutes. Get an email with the exact diff when @lovable.dev/mcp-js ships a breaking release beyond v3.3.0.