Sam Daodu
Quick Read
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Grok dominates Coinbase’s AI agent trading with a 60% share, dwarfing Claude at 13%, custom tools at 22%, and ChatGPT at just 2%.
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Coinbase has disclosed which AI programs drive trades but refuses to reveal which coins those agents actually buy, making speculation unreliable.
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USDC dominates AI agent payments via Coinbase’s x402 standard, with Base network handling over 90% of 160 million processed transactions.
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Grok, the AI chatbot created by Elon Musk’s xAI, has become the frontrunner in automated trading on Coinbase (NASDAQ: COIN). On September 25, 2026, Coinbase’s CEO Brian Armstrong announced that “Grok is the leading client for agentic traders on Coinbase currently.” Data shows that from September 14 to September 21, Grok accounted for about 60% of AI agent trading activity on the platform.
Traditionally, exchange executives refer to their clients as either retail investors or institutional traders. However, Armstrong broke from that norm by naming a chatbot, highlighting the significant role that software plays in executing orders on the largest U.S. crypto exchange. This raises a pressing question: what coins are these AI agents actually buying?
Grok Drove About 60% of AI Agent Trading on Coinbase
An “agentic trader” is essentially a program that receives a wallet and specific instructions to place trades automatically, without human approval for each transaction. Coinbase introduced this capability on June 11, 2026, when it launched “Coinbase for Agents.” This service allows AI tools to trade cryptocurrencies and derivatives within predefined spending limits set by their owners.
In the week of September 22, Coinbase even expanded this service to include U.S. stocks and ETFs.
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