Lauther

Name: Lauther
Author: csanadymiklos

@csanadymiklosMCP server · External

Puts Approve/Deny on your phone before an agent acts, and waits for your fingerprint.

AI agent governancev0.1.1MITJavaScript

Freeno charge per call

How to install

Runs on your machine from its package; the steps are below.

What it does

Reads
Writes
High impact

At most: moves money, runs code or commands, deletes data, or sends messages for you.

What it costs

Free

Odel charges nothing per call. The publisher may charge for its own service.

Runs locally over stdio

This server isn't hosted — your MCP client launches it from a package registry. Use one of the commands below, or drop the config into your client (e.g. Claude Desktop).

npmlauther-mcpv0.1.1

Run

npx -y lauther-mcp

MCP client config

{
  "mcpServers": {
    "lauther": {
      "command": "npx",
      "args": [
        "-y",
        "lauther-mcp"
      ]
    }
  }
}

README1 min readView on GitHub

lauther-js

JavaScript packages for Lauther — push notifications to your phone from any web app or script, and questions that wait for a yes before something irreversible happens.

Package	What it is
`lauther-client`	The Node client. Zero dependencies, two methods, TypeScript types bundled.
`lauther-mcp`	An MCP server, so a coding agent can ask its owner for approval on their phone.

bash

npm install lauther-client

import { Lauther } from "lauther-client";

const lauther = new Lauther(process.env.LAUTHER_TOKEN);

await lauther.push({ title: "Backup finished" });

if (await lauther.ask("Deploy v2.4 to production?")) {
  await deploy();
}

Only an explicit Approve returns true. A denial and a timeout are both false — an unanswered question must never read as a yes.

Why this exists

A browser tab can't reach someone who closed it, and building a native app per project to fix that was never going to happen. Lauther is one app your projects share over an HTTP call.

Development

Node 18+. npm workspaces, no build step, no bundler.

bash

npm install
npm test          # both packages

lauther-client has no runtime dependencies and is tested with a stubbed fetch. lauther-mcp is tested by spawning the real server over stdio and driving it with a real MCP client against a fake Lauther API — so a broken tool schema or broken stdio wiring fails the suite rather than a user's agent.

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