ccxt/ccxt's Claude Code Plugin for Crypto Exchange Trading

What is the ccxt/ccxt plugin, actually

ccxt/ccxt is the source repository for CCXT, a crypto trading API that reaches more than 100 exchanges and prediction markets from a single unified interface, published for JavaScript, TypeScript, Python, C#, PHP, Go, and Java. The Claude Code plugin that lives inside that same repository does not rewrite CCXT, it packages 9 skills and 1 agent that teach an agent how to use the library and how to work on it.

Flowy indexes ccxt/ccxt at 43,778 GitHub stars, one of the higher counts in the catalog. The 10 components split into four jobs: a skill per supported language for building your own integration, a CLI skill for working without writing code, an MCP skill for handing an AI agent live exchange access, and two components for people extending CCXT itself.

Which language skill matches your project

Six of the nine skills follow one pattern, each scoped to a single language: ccxt-csharp (C# and .NET), ccxt-go, ccxt-java, ccxt-php, ccxt-python, and ccxt-typescript (TypeScript and JavaScript, covering both Node.js and the browser). Every one of them covers the same ground in its own language: installing CCXT, connecting to an exchange, fetching market data, placing orders, streaming live tickers and order books over the WebSocket API, handling authentication, and managing errors, for both CCXT's standard REST API and its real-time WebSocket API.

Pick the one that matches your project rather than installing several. A Node or browser project reaches for ccxt-typescript, a JVM project for ccxt-java, and so on for ccxt-csharp, ccxt-go, ccxt-php, and ccxt-python.

Working from a terminal, no code: ccxt-cli

ccxt-cli is not tied to any one language. It covers installing CCXT's command line interface and calling any of its unified methods, such as fetching a ticker, fetching OHLCV candle data, creating an order, or checking a balance, by passing arguments straight into the terminal. Reach for this one to check a price or try a call against an exchange before writing any code at all.

Giving an AI agent live exchange access: ccxt-mcp

ccxt-mcp is CCXT's own MCP server, and it is aimed at connecting an AI agent, rather than a program you write, to the same 100+ exchanges and prediction markets the language skills cover. It covers installing the server in Claude Desktop, Claude Code, Cursor, VS Code, and other MCP hosts, then configuring it so the agent can read market data and balances, with trading itself opt-in rather than automatic. Reach for this one when you want an agent to answer questions about markets or a portfolio directly, rather than writing code against a language library yourself.

Adding a new exchange, or reviewing a pull request

The remaining two components are for people working on CCXT's own codebase, not on a trading application. new-exchange scaffolds a brand new exchange integration in TypeScript, following CCXT's certified-exchange template: its own describe block, the unified methods an exchange is required to implement, response parsers, capability flags, sandbox setup, and the static test fixtures an integration needs. It is for adding an exchange that CCXT does not already support.

ccxt-pr-reviewer is the plugin's one agent, and it reviews a CCXT pull request end to end: reading the diff, transpiling and building the change across all six of CCXT's languages (TypeScript and JavaScript, Python, PHP, C#, Go, and Java), running the offline test suite plus live smoke tests, inspecting both the hand-written source and the generated code, and checking for security, performance, and race-condition problems before drafting its findings.

How do I install it

Flowy indexes ccxt/ccxt from its public GitHub repository, where the skills and the agent sit alongside CCXT's own source. Install it from the listing page linked at the top of this guide, then pick the one language skill that matches your project, plus ccxt-cli or ccxt-mcp if you need them. new-exchange and ccxt-pr-reviewer only matter once you are contributing to CCXT itself.