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Kraken's official CLI and MCP server: your agent reads market data and paper trades on Kraken, or trades live once you add API keys.
by Kraken· Crypto & Web3Unclaimed · Yours? Claim it
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About
Kraken CLI is Kraken's open-source command-line tool for trading crypto, tokenized stocks (xStocks), forex and derivatives, built for AI agents. Every command returns JSON and it has a built-in MCP server, so your agent can read market data, paper trade against live prices and, once you add API keys, work with your own Kraken account. It ships as a Gemini CLI extension, and its repository includes a Claude plugin with Kraken's Agent Skills. What you can do with it - Get tickers, order books, recent trades and candles for Kraken markets, with no account needed - Paper trade spot and futures against live prices, with no API keys and no real money - Check balances and open orders, and place, amend and cancel orders once you add API keys - Work across spot, futures, xStocks, forex and staking from one tool - Follow its Agent Skills for trading strategies, market analysis and portfolio tasks How it connects - Install the kraken binary first with Kraken's one-line installer (macOS and Linux; on Windows use WSL): curl --proto '=https' --tlsv1.2 -LsSf https://github.com/krakenfx/kraken-cli/releases/latest/download/kraken-cli-installer.sh | sh - In Gemini CLI: gemini extensions install https://github.com/krakenfx/kraken-cli. The extension and the Claude plugin start its MCP server with the market data, paper trading and feedback tools. - In any other MCP client, run kraken mcp. kraken mcp -s all exposes every command group; dangerous calls then need confirmation unless you add --allow-dangerous. - Market data and paper trading need no account. For your own account, set KRAKEN_API_KEY and KRAKEN_API_SECRET (and the futures keys for futures). Good to know - Kraken calls it experimental software. It interacts with the live Kraken exchange and can execute real financial transactions, and orders, withdrawals and transfers are irreversible once processed. - It isn't financial advice and doesn't check whether a trade is sound. Kraken recommends paper trading first, validating orders with --validate, least-privilege API keys, small amounts, and its dead man's switch (kraken order cancel-after) for unattended sessions. - The MCP server is local-first: any agent connected to it uses your configured Kraken account, so don't expose it outside systems you control. - xStocks aren't available in the US, and availability of every product varies by jurisdiction. Trading derivatives and leveraged instruments involves significant risk and isn't appropriate for all investors.
Once it’s added
“Install kraken-cli and build me a morning market brief for BTC, ETH, and SOL.”
“Watch ETH, SOL, and BTC for 30 seconds. Show me the price movement, volume, and volatility for each.”
“Initialize a paper trading session with $10,000. Buy and sell BTC using a simple momentum strategy for 1 minute. Show me the trade log and P&L.”
“Paper trade: buy $100 of BTC every time the price drops 1% from the last fill. Start with $1,000, run it for 2 minutes and return the trade log.”
Before you add it
Reads only
Tickers, order books, trades and candles for Kraken markets · Your balances, open orders and trade history (with API keys) · Paper trading balances, positions and P&L
Makes changes · your agent can ask first
Places and cancels paper trades against live prices · Places, amends and cancels real orders on your Kraken account (with API keys) · Withdrawals, transfers and staking, only when you turn those services on
From people who use it
Step by step
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Write a reviewRuns on your machine.
gemini extensions install https://github.com/krakenfx/kraken-cli
Scanned and passed · checked 6 h ago
“Check my Kraken balance and show the trades that would bring BTC to 50% of my portfolio. Don't execute yet.”
“Monitor BTC and ETH every 60 seconds and alert me if either moves more than 2% from where the session started.”
Scanned on every change, and again when our rules improve.
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Security scan
Passed
Safe to install in every agent it supports. Extensions, Claude plugins.
Plugins people install alongside Kraken CLI.
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