Massive AI

Official Massive.com plugins and skills for AI coding assistants. They teach your assistant how to use the Massive market-data API correctly: the right host and auth, when to use REST, WebSocket or Flat Files, what your plan is entitled to, and how to get historically accurate numbers.

Install

You need a Massive API key. Get one at massive.com and export it before starting your assistant:

export MASSIVE_API_KEY=your_key_here

Claude Code

/plugin marketplace add massive-com/ai
/plugin install massive@massive-plugins

Restart the session to load the skills.

Cursor

The massive plugin also ships a Cursor manifest. Install instructions will be added here when it is listed in the Cursor Marketplace.

Plugins

Plugin	Platforms	What it does
massive	Claude Code, Cursor	Skills for the Massive API: auth and host, REST vs WebSocket vs Flat Files, entitlements, accurate historical data, and recipes for backtests, screens, options, streaming and more. Optionally registers the hosted Massive MCP server.

Layout

Content is grouped by the platform it targets:

.claude-plugin/marketplace.json   # Claude Code marketplace catalog
.cursor-plugin/marketplace.json   # Cursor marketplace catalog
providers/
  claude/plugins/<name>/          # Claude Code plugins (some also ship to Cursor)
  chatgpt/<name>/                 # ChatGPT apps, GPT configs and action schemas

Contributing

Issues and pull requests are welcome. See CONTRIBUTING.md.

License

MIT