mcpbeat Sign in

mcp-v8 MCP Server

by r33drichards Your server? Claim it
local only

mcp-v8 runs on your own machine — the client starts it, so there is no endpoint to ping. Last commit 8 Sep 2026.

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

Installs / week
not published
57
Stars
7 open issues
8 Sep 2026
Last commit
from GitHub
AGPL-3.0
License
Rust

What the code does

We read the source, 9 h ago · rules 3dff92dd89df

A tool parameter reaches a dangerous call

A value the model can set ends up inside a file or shell call. That is not a flaw by itself — for a terminal server it is the job — but it is where things go wrong when it is not.

A tool parameter reaches a file or shell call get_file.path → server/src/engine/ffi.rs:1708, get_file.path → server/src/engine/ffi.rs:1919
        std::fs::write(
Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

execFileSync(process.execPath, ['node_modules/typescript/bin/tsc', '-p', 'tsconfig.build.json'], { stdio: 'inherit' });
In the project's build, not in the package

Found in continuous integration, deployment or infrastructure files, or in a neighbouring package of the same monorepo. None of this is installed when you add the server: it describes how the project is built and released. We list it because a leaked key in a build pipeline is still a real problem, but it is not something this server does on your machine.

Builds a database query by concatenation .github/workflows/npm-publish.yml:42
      - name: Select matrix package
        id: select
        env:
          EVENT_NAME: ${{ github.event_name }}

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

A tool parameter here reaches a dangerous call

That is not a flaw by itself — but it is where things go wrong when it is not the job. We re-read this code on every release. Watch it and you hear from us the day another one appears.

Three servers free · no card

Alternatives to mcp-v8

same job, measured the same way
SQL MCP Server
by nethinwei

Controlled SQL access gateway with policy, cost limits, tenant isolation, and safe tools.

local only
MCP Server Analyzer
by anselmoo

MCP server for Python, JavaScript, and TypeScript code analysis with Ruff, ty, Vulture, and Biome

590 installs/wk local only
Foundry MCP code mode
by foundry-mcp

Code mode (preview): the AI writes a script against a typed foundry.* API and runs it in a sandbox.

answering
Osmcp
by krushnavardhanreddy

A typed, policy-controlled OS capability layer for AI agents.

local only
Dotnet Sherlock MCP
by jcucci

.NET assembly introspection MCP server with advanced reflection and type analysis capabilities

local only
Customjs MCP
by customjs

Host static HTML pages, generate PDFs, screenshots, scrape JS sites, run sandboxed JavaScript.

answering
Telleroutlook
by telleroutlook

WasmAgent MCP server — WASM-sandboxed code execution with capability manifests and Tasks API.

285 installs/wk local only
Pmcp
by noahgift

High-quality Rust SDK for Model Context Protocol (MCP) with full TypeScript SDK compatibility

local only

mcp-v8 — questions

Answers built from our own checks of this server.

Why is there no uptime for mcp-v8?
mcp-v8 runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone.
Is mcp-v8 open source?
Yes — it is published under the AGPL-3.0 licence, written in Rust, 57 stars on GitHub and 7 open issues. The source link is on this page, so you can read exactly what it does with your data before you connect it.