Catalyst Core

Developer-workflow MCP server for catalyst-core: migration guidance, debugging, and task planning.

Quick Install

Automated & IDE Setup

Copy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.

Add to Cursor Add to VS Code

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Manual Client & Custom JSON ConfigExpand JSON ▾

Client Config & Setup

Choose your client or environment

Target File:~/Library/Application Support/Claude/claude_desktop_config.json

claude_desktop_config.json

{
  "mcpServers": {
    "mcp-308": {
      "command": "npx",
      "args": [
        "-y",
        "create-catalyst-app@latest"
      ]
    }
  }
}

💡 Paste the JSON block into your client's configuration file under mcpServers, then restart the application.

Documentation Overview

Catalyst

Catalyst is a React framework for building performant web apps and universal apps for Android and iOS. It provides server-side rendering, route-level data fetching, app shell primitives, styling conventions, and native WebView packaging tools.

Quick Start

Create a new Catalyst app with:

Terminal

npx create-catalyst-app@latest

Then start the generated app:

cd <your-app>
npm run start

The development server starts at http://localhost:3005.

Documentation

Read the full documentation at catalyst.1mg.com.

Useful starting points:

Packages

catalyst-core: the framework package used by Catalyst applications.
create-catalyst-app: the CLI for scaffolding new Catalyst apps.

Requirements

Node.js 20.4.0 or later for generated Catalyst apps.
macOS or Linux for local development.

Repository

This repository is a monorepo containing the framework package, scaffolding CLI, docs app, and internal test fixture.

packages/catalyst-core: framework package
packages/create-catalyst-app: CLI and scaffold templates
apps/catalyst-core-test: standalone fixture app used to test catalyst-core
docs: Catalyst documentation app

Contributing

Install dependencies and create local docs config before running build/test commands:

Terminal

npm run setup

Common development commands:

Terminal

npm run core:build
npm run core:test
npm run cca:test
npm run docs:build

To scaffold a real app from the current branch packages:

Terminal

npm run sandbox:create -- --name release-test

The sandbox app is created under .sandbox/<name> and uses a local packed catalyst-core from the current branch.

Read the full README →View source on GitHub →

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Frequently Asked Questions about Catalyst Core

Add the following block to your claude_desktop_config.json under mcpServers: "mcpServers": { "catalyst-core": { "command": "npx", "args": ["-y", "tata1mg/catalyst-core"] } }

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Technical Specs & Signals

CategoryDeveloper Tools

41Quality signal: Fair · 41/100How this signal is calculated ▾

Server availabilityNot measured

Not scored for repo-hosted servers — we can't reach the running server, only its GitHub page. Hosted MCP endpoints are health-checked live.

Verified ownership10/20

Documentation & tools16/30

Adoption & activity5/15

Community engagement0/10

A guidance signal from public completeness & health data — not a user rating. New listings start lower and rise as they add docs, get verified, and grow adoption. Signals we can't observe for a listing are skipped, not counted against it.

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Moxie Docs MCP

MCP & Agent Skills for Automated Documentation, and codebase conventions + context

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Documentation Overview

Catalyst

Quick Start

Create a new Catalyst app with:

Terminal

npx create-catalyst-app@latest

Then start the generated app:

cd <your-app>
npm run start

The development server starts at http://localhost:3005.

Documentation

Read the full documentation at catalyst.1mg.com.

Useful starting points:

Packages

catalyst-core: the framework package used by Catalyst applications.
create-catalyst-app: the CLI for scaffolding new Catalyst apps.

Requirements

Node.js 20.4.0 or later for generated Catalyst apps.
macOS or Linux for local development.

Repository

This repository is a monorepo containing the framework package, scaffolding CLI, docs app, and internal test fixture.

packages/catalyst-core: framework package
packages/create-catalyst-app: CLI and scaffold templates
apps/catalyst-core-test: standalone fixture app used to test catalyst-core
docs: Catalyst documentation app

Contributing

Install dependencies and create local docs config before running build/test commands:

Terminal

npm run setup

Common development commands:

Terminal

npm run core:build
npm run core:test
npm run cca:test
npm run docs:build

To scaffold a real app from the current branch packages:

Terminal

npm run sandbox:create -- --name release-test

The sandbox app is created under .sandbox/<name> and uses a local packed catalyst-core from the current branch.

Frequently Asked Questions about Catalyst Core

Add the following block to your claude_desktop_config.json under mcpServers: "mcpServers": { "catalyst-core": { "command": "npx", "args": ["-y", "tata1mg/catalyst-core"] } }