What is OpenSea CLI?

@opensea/cli is a command-line tool and TypeScript SDK for querying the OpenSea API. It supports collections, NFTs, listings, offers, events, search, tokens, swaps, and accounts — with both JSON and table output formats.

Quick Start

Install globally:

npm install -g @opensea/cli

Or use without installing:

npx @opensea/cli collections get mfers

Authentication

Set your API key via environment variable or flag:

export OPENSEA_API_KEY=your-api-key
opensea collections get mfers

# or pass inline
opensea --api-key your-api-key collections get mfers

Get an API key at Settings → Developer.

Full Documentation

For complete CLI usage, the programmatic SDK, all available commands, examples, and output formats, see the full documentation on GitHub:

github.com/ProjectOpenSea/opensea-cli

Links