Claude Code now sees the market: 17,000 stocks and cryptocurrencies in one terminal.
The professional financial data market is undergoing a tectonic shift. An analyst known by the pseudonym CyrilXBT has demonstrated how to connect Claude Code to live market data — from quotes for more than 17,000 stocks to cryptocurrencies, earnings reports, balance sheets, and cash flow statements. It takes about 60 seconds and a single command. This is not just convenience — it is a direct threat to outdated monopolies like the Bloomberg Terminal.
Setup in three steps
The connection mechanics are based on the open MCP (Model Context Protocol) protocol. The first step is running a command inside Claude Code to add the financial-datasets service via HTTP transport. The second is authorization via OAuth in the browser, after which the connection status is checked with a separate command. The third is natural language queries. CyrilXBT provides examples: Apple's current price-to-earnings ratio, Tesla's quarterly reports for the last four periods, or the change in Bitcoin's price over a year.
Previously, this level of access required either a Bloomberg terminal, complex APIs, or hours of manual searching across disparate sources. Now, Claude Code acts as a shell through which the user accesses the data provider without a single manual action. According to the analyst's estimates, a Bloomberg subscription costs roughly $24,000 per year, and the emergence of such a combination is unlikely to please those paying that money.
Who benefits from this
A sustainable advantage will go to those who learn to combine Claude Code's reasoning with live financial data. This concerns quants, analysts, and portfolio managers. It is a research edge that compounds daily — every day of using the combination widens the gap over competitors. None of the steps is difficult on its own, but it is precisely the connection of an ordinary tool with a stream of up-to-date market data that creates value.
Night work: thousands of agents from a smartphone
Special attention deserves the breakdown of the workflow of Boris Cherny, one of the creators of Claude Code. He uses a smartphone as the primary interface instead of a laptop and maintains between five and ten active sessions simultaneously. Each of them is capable of spawning auxiliary agents — sometimes hundreds, sometimes thousands overnight on larger tasks. Dozens of loops run continuously in the background, and some are preserved server-side even when the laptop is closed.
CyrilXBT highlights four critical elements for the security of such a scheme. The first is a full-fledged interface for sending instructions from a smartphone, not just receiving notifications. The second is isolated parallel execution: each agent works in its own context, otherwise running many processes simultaneously will produce chaos, not scale. The third is verification without human involvement: each agent's result is checked against real data, tests, or rules, not against the agent's own report. The fourth is strict stop conditions and a spending cap: a process running for hours unattended requires an absolute limit on time, money, and volume that does not depend on whether a person notices a failure.
My view: Connecting Claude Code to financial data via MCP is not just another integration, but the beginning of the end of the era of expensive terminals. Those who master this combination before others will gain not just a tool, but a strategic advantage that will only strengthen with each day of use. The question is not whether it is worth doing, but how quickly you start.