# Webmcp Local Relay

> Local MCP relay for browser WebMCP tools via embed iframe and localhost WebSocket

## Facts
- Page: https://tashan.sh/capability/pkg-mcp-b-webmcp-local-relay
- tashan id: pkg:@mcp-b/webmcp-local-relay
- Source: https://github.com/WebMCP-org/npm-packages
- npm: https://www.npmjs.com/package/@mcp-b/webmcp-local-relay
- Type: npm
- Category: other
- tashan score: 68.0 / 100
- Adoption: 44.0
- Upkeep: 81.0
- Freshness: 84.0
- Evidence coverage: 100% of the inputs this score can use
- Health: active
- Instruction depth: not yet graded
- npm downloads: 1,459/week
- License: MIT
- Official: no

## Install

```sh
claude mcp add mcp-b-webmcp-local-relay -- npx -y @mcp-b/webmcp-local-relay
```

## Security audit
- Known advisories: 0
- Install-time script: none declared
- Build provenance: 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 2026-08-20 by tashan (https://tashan.sh) from public evidence. Scorer s5.