StockMarketStack

StockMarketStack is a catalogue of software and data for people who manage their own money and build on market data. It covers 190+ products: market data APIs, charting platforms and screeners, portfolio trackers, backtesting frameworks, fundamental data, trade journals, MCP servers and AI agents, tick-data stores and JavaScript charting libraries. Every card fills in the same blocks: pricing, access, coverage, capabilities and interfaces. That lets you read two APIs side by side without translating between their marketing pages. A blank field means "not verified", never "zero", and each block carries its own verification date. Beyond the cards: – Guides on how the industry works: exchange data fees, security identifiers, index licensing – How-tos for common tasks, each with the part that breaks the naive approach – "Alternatives" pages for products that shut down or changed terms (IEX Cloud, Yahoo Finance, Quandl) – A glossary of terms the industry uses inconsistently Every page has a plain-Markdown twin at the same URL plus .md, so AI agents can read it cleanly.