How to install the ChainGPT Claude Skill plugin in Claude Code

There are two ways to install the ChainGPT Claude Skill: the recommended single-command plugin install, and a manual install via git clone.

Prerequisites

• Claude Code, available from code.claude.com.
• A ChainGPT API key from app.chaingpt.org.
• API credits purchased at app.chaingpt.org/addcredits (1,000 credits = $10, so 1 credit = $0.01).
• Node.js (LTS recommended) for the MCP server.

Recommended: plugin install

Run this command inside Claude Code:

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

With a plugin install, the MCP server reads CHAINGPT_API_KEY from your environment automatically.

Manual install via git clone

Project-level install:

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

User-level install uses the path ~/.claude/skills/chaingpt:

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

For manual installs only, build the MCP server:

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

Then configure it in .claude/settings.json with the environment variable CHAINGPT_API_KEY.

Notes

The plugin uses standard Claude Code plugin conventions and the MCP protocol. The skills also work standalone for code generation without the MCP server configured.

If the one-step owner/repo plugin install does not work, use the two-step flow: add the marketplace (ChainGPT-org/chaingpt-claude-skill), then install the chaingpt plugin.

For the full installation guide, see https://docs.chaingpt.org/dev-docs-b2b-saas-api-and-sdk/chaingpt-claude-skill-and-plugin/getting-started/installation