S&P 500 market data for investors and AI agents

Quantustik is a market data service for the S&P 500: prices, fundamentals, dividends, analyst coverage, SEC filings, insider and Congress trades, macro series, market indicators and market conditions. Read it on the dashboard, or pull it as clean JSON through a REST API and an MCP server for agents, notebooks and apps.

What data is covered?

Every S&P 500 company, with price history, fundamentals, dividends and filings, plus market-wide readings such as the VIX, the Fear & Greed index, credit spreads and the yield curve. Each page shows when its data was last updated and where it comes from.

What makes it different?

Sourced data with the date attached, explained in plain English next to every number. The data is the same for everyone; paid plans add API capacity, history exports and email delivery. See the AI Guides for how AI tools can use live market data.

How do agents connect?

The MCP server is at https://quantustik.com/mcp. Listing its tools needs no API key, and its server card describes the connection.

Educational research only — not investment advice.