Developer · Local MCP server

mcp-v8

Run JavaScript and TypeScript in sandboxed V8 isolates with policy-controlled host capabilities.

What the MCP Registry states

The entry as published to the official MCP Registry (read 2026-10-04), latest version.

Registry name
io.github.r33drichards/mcp-js
Version
0.21.0-rc.4
Status
Active
Category
developer
Transport
stdio (local process)
Package
OCI image (Docker)
Published
2026-10-02
Updated
2026-10-02
Publisher
r33drichards (GitHub)
Repository
github.com/r33drichards/mcp-js
Source
Registry API entry

Packages

RegistryPackageVersionTransportEnvironment variables
OCI image (Docker)runtime: dockerdocker.io/wholelottahoopla/mcp-js:0.21.0-rc.4—stdioNone declared

How to connect mcp-v8

mcp-v8 runs locally from a container image in an OCI registry such as Docker Hub or GitHub Container Registry: docker.io/wholelottahoopla/mcp-js:0.21.0-rc.4. It speaks MCP over stdio, so the client starts it as a program and talks to it through standard input and output. It needs Docker or another OCI container runtime; started with docker run — the usual command is docker run -i --rm docker.io/wholelottahoopla/mcp-js:0.21.0-rc.4.

In the mcpServers JSON format that many desktop and editor MCP clients read, the entry looks like this (placeholders in angle brackets):

{
  "mcpServers": {
    "mcp-js": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "docker.io/wholelottahoopla/mcp-js:0.21.0-rc.4"
      ]
    }
  }
}

Derived from the registry entry, not tested here. What the server does, and on what terms, is set by its publisher; check its repository or website before giving it access to your accounts or files. How to add an MCP server to an assistant · Before you connect

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