# Js

> 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.

## Facts
- Page: https://tashan.sh/capability/pkg-lovable-dev-mcp-js
- tashan id: pkg:@lovable.dev/mcp-js
- Source: https://github.com/lovablelabs/lovable
- npm: https://www.npmjs.com/package/@lovable.dev/mcp-js
- Type: npm
- Category: other
- tashan score: 86.0 / 100
- Adoption: 70.0
- Upkeep: 99.0
- Freshness: 97.0
- Evidence coverage: 100% of the inputs this score can use
- Health: active
- Instruction depth: not yet graded
- npm downloads: 227,726/week
- License: MIT
- Official: no

## Install

```sh
claude mcp add lovable-dev-mcp-js -- npx -y @lovable.dev/mcp-js
```

## Security audit
- Known advisories: 0
- Install-time script: none declared
- Build provenance: not attested

Permissions are read from DECLARED dependencies only. Nothing is executed, so an empty result means "nothing declared", never "nothing possible".

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Measured 2026-09-12 by tashan (https://tashan.sh) from public evidence. Scorer s5.