finance-query

Open-source API, library, and MCP server for stock quotes, historical data, and indicators

PlatformWebfreemium

Finance Query is an open-source Rust library, CLI, and server providing REST, WebSocket, and GraphQL access to stock quotes, historical prices, technical indicators, and SEC EDGAR filings, alongside a free hosted API. It also includes an MCP server with 36 tools so AI agents like Claude and Cursor can query financial data directly. It targets developers building financial applications or AI-agent integrations who need free, programmatic market data access.

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