Installation

Installation

There are two ways to install the ChainGPT Developer Kit for Claude Code: via the plugin installer (recommended) or via manual git clone.

Plugin install (recommended)

Run this command inside Claude Code:

/plugin install ChainGPT-org/chaingpt-claude-skill

This automatically sets up the skill files, configures the MCP server via .mcp.json, and makes all 5 skills and 12 MCP tools available immediately. The only additional step is setting your API key (see API Key Setup).

Manual install (git clone)

Clone the repository into your project's .claude/skills/ directory:

git clone https://github.com/ChainGPT-org/chaingpt-claude-skill .claude/skills/chaingpt

For a user-level install that applies to all projects, clone to your home directory instead:

git clone https://github.com/ChainGPT-org/chaingpt-claude-skill ~/.claude/skills/chaingpt

Configure the MCP server (manual installs only)

If you installed via git clone, you need to build the MCP server and add it to your settings:

cd .claude/skills/chaingpt/mcp-server
npm install && npm run build

Then add the following to your .claude/settings.json:

{
  "mcpServers": {
    "chaingpt": {
      "command": "node",
      "args": [".claude/skills/chaingpt/mcp-server/dist/index.js"],
      "env": { "CHAINGPT_API_KEY": "your-key-here" }
    }
  }
}

What gets installed

After installation, the following components are available:

Component	Description
5 skills	Main API reference, playground, debug assistant, hackathon scaffolder, update manager
12 MCP tools	Direct API access from Claude conversations
16 reference docs	Complete API documentation for all 7 products
10 templates	Production-ready project scaffolds
45+ patterns	Audited Solidity smart contract patterns
8 examples	Working code in JavaScript and Python
Mock server	Zero-credit local testing server

Verifying the installation

Open Claude Code and ask it anything about ChainGPT:

"What ChainGPT products are available and how much do they cost?"

If the skill is loaded correctly, Claude will respond with detailed product information including exact credit costs, SDK package names, and endpoint URLs — not generic information from its training data.

Updating

To check for and apply updates, use the update skill inside Claude Code:

/chaingpt-update

This fetches the latest changes from GitHub and shows a changelog before applying. For manual installs, you can also run git pull in the skill directory.

Prerequisites

Requirement	Details
Claude Code	code.claude.com
ChainGPT API key	app.chaingpt.org — connect a wallet to sign up
API credits	Buy credits — 1,000 credits = $10
Node.js	Required for the MCP server (LTS version recommended)