>_ best Equity Data APIs tools
The 16 top equity data apis tools in the index, ranked by upvotes.
- 01.Billionr— Provides authenticated CLI access to proprietary options signals, squeeze setups, ticker history, and a Risk-on/Risk-off gauge informed by The Tao of Trading philosophy.
- 02.Arkolith— Provides SEC 13F institutional holdings, Form 4 insider trades, and congressional disclosures through MCP and REST API with per-datapoint provenance to primary SEC filings.
- 03.Activ8 Insights— Tracks activist short seller reports, ranks investigators by verified stock impact, and provides forensic scoring on targeted companies with real-time alerts.
- 04.AskEdgar— Extracts structured data from SEC filings in real time, monitors dilution events, offerings, registrations, and compliance status, delivering proprietary datasets and alerts via API and web platform.
- 05.Kaleidoscope— Provides SEC filing search, AI-powered extraction, institutional holdings tracking, insider trading data, M&A intelligence, and financial data APIs with semantic research tools and MCP server integration.
- 06.StockAInsights— Extracts financial data and metrics from SEC filings using multi-strategy AI trained on industry-specific patterns, delivering 12+ years of standardized statements, ratios, and AI-generated investment narratives.
- 07.StockMarketScan— Provides 24 curated stock screeners covering technical, momentum, fundamental, and dividend setups with unusual options activity data and API access.
- 08.Quiver Quantitative— Aggregates alternative data on congressional trading, insider transactions, hedge fund activity, lobbying, government contracts, and corporate political contributions for equity research.
- 09.Earnings API— Provides REST API access to historical and upcoming earnings calendar data for NYSE and NASDAQ stocks with date-based queries, post-earnings reactions, and structured JSON responses for automated workflows.
- 10.Quant Data— Provides exchange-licensed real-time and historical options order flow, dealer exposure metrics, dark pool prints, and market data with dashboard and mobile apps.
- 11.Soria— Aggregates healthcare-specific financial data from 125+ sources into an AI-native terminal for sector-focused research and analysis.
- 12.Quantcha— Provides options trade search, screening, analysis, portfolio management, and proprietary options data through a web platform and API.
- 13.WhaleWisdom— Tracks institutional investor 13F filings, insider transactions, 13D/13G disclosures, and mutual fund holdings with backtesting and portfolio replication tools
- 14.Jay R. Ritter IPO Data— Provides comprehensive historical IPO datasets covering US and international markets from 1975-2025, including underpricing statistics, underwriter rankings, founding dates, VC-backing status, and long-run returns for academic research.
- 15.Kwants— Provides a self-hosted Python library for downloading Polygon flat-file data, building point-in-time ticker universes with adjustments, and running backtests against 1m/5m/daily bars using a declarative DSL for entry/exit conditions.
- 16.TickerTrends— Generates KPI forecasts for public companies using consumer search trends, web traffic, and social sentiment data to predict earnings metrics before official releases
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