Mantafin is an equity research platform for self-directed investors. It combines up to 20 years of historical company financials and prices, stock and ETF screening, analyst estimates, earnings and IPO calendars, and custom portfolio backtesting. ChatGPT and Claude integrations through MCP support AI-assisted research using Mantafin tools. It is a paid product with a 7-day free trial, then Plus at $39 and Pro at $79 a month. It does not give investment advice.
Mantafin addresses the friction between researching company fundamentals, testing portfolio ideas, and using AI assistants. The product brings these research steps together so investors can investigate an idea, examine historical context, and explore portfolio assumptions in a connected workflow.