>_ best Data APIs tools
The 46 top data apis tools in the index, ranked by upvotes.
- 01.Valyu - Finance— Provides web search and specialized data APIs for AI agents covering SEC filings, clinical trials, patents, market data, and macro sources through a unified interface.
- 02.TradeOdds— Analyzes historical patterns by matching current market conditions against 30+ years of data across 2,000+ stocks, ETFs, and crypto to calculate base rates for specific moves.
- 03.WithAI— Provides AI agent infrastructure for asset managers to automate research across securities and integrate proprietary processes with frontier models
- 04.FRED MCP Server— Provides MCP server access to 800,000+ Federal Reserve Economic Data time series with built-in transformations, search, and browsing capabilities for AI assistants and developers.
- 05.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.
- 06.FinImpulse— Provides global financial data for stocks, ETFs, and mutual funds via REST API and dashboard across 97 markets with 56 years of historical pricing, fundamentals, holdings, analyst data, and options chains
- 07.AltIndex— Aggregates alternative data signals including Reddit mentions, web traffic, app downloads, job postings, and sentiment across 2,527+ stocks, ETFs, and cryptocurrencies with AI-powered scoring and alerts.
- 08.AltIndex— Tracks social media mentions, sentiment, and alternative data signals across Reddit, Twitter, and other platforms for 2,500+ stocks, ETFs, and cryptocurrencies with historical time series and real-time alerts
- 09.Octagon AI— Generates AI research reports comparing model probabilities to live prediction market prices for Kalshi contracts, with cited sources and real-time repricing.
- 10.VestMap— Provides 1,000+ source-cited GIS fields for any US address across multiple geographic scales, accessible via web, API, and MCP server for AI agents.
- 11.Barchart— Provides real-time market data, charting tools, screeners, news, and analysis across equities, futures, options, ETFs, commodities, and currencies with customizable workflows.
- 12.Activ8 Insights— Tracks activist short seller reports, ranks investigators by verified stock impact, and provides forensic scoring on targeted companies with real-time alerts.
- 13.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.
- 14.Itô Research Grant— Provides free authenticated API access to prediction market data, basket analytics, and hosted backtesting infrastructure for researchers and academics.
- 15.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.
- 16.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.
- 17.Artemis— Provides institutional-grade metrics, dashboards, and research for crypto protocols, stablecoins, prediction markets, and tech equities with fundamental analysis across 600+ assets.
- 18.String AI— Scrapes structured data from websites using AI-generated scrapers with automated maintenance, proxy infrastructure, and data quality monitoring.
- 19.EODHD— Provides REST and WebSocket financial data APIs covering 60+ exchanges, 150K+ tickers, 30 years of historical EOD/intraday prices, fundamentals, options, forex, crypto, and macroeconomic indicators
- 20.Twelve Data— Provides REST API and WebSocket access to real-time and historical market data for stocks, forex, crypto, ETFs, commodities, and fundamentals across 250+ exchanges.
- 21.Wisesheets— Provides real-time and historical financial data for stocks, ETFs, options, and crypto directly in Excel and Google Sheets through custom functions and statement dumps
- 22.StockMarketScan— Provides 24 curated stock screeners covering technical, momentum, fundamental, and dividend setups with unusual options activity data and API access.
- 23.You.com Finance Research API— Provides cited, multi-step financial research API delivering structured intelligence from filings, macro data sources, and licensed S&P Global data with inline citations and source reconciliation
- 24.CountryRisk.io— Provides country risk scores, sovereign ratings, and AML/ESG assessments for 200 countries with AI-powered workflows and API access
- 25.Quiver Quantitative— Aggregates alternative data on congressional trading, insider transactions, hedge fund activity, lobbying, government contracts, and corporate political contributions for equity research.
- 26.CoinGecko— Provides real-time and historical cryptocurrency prices, market data, charts, and fundamental analysis across 17,000+ coins, NFT collections, and exchanges
- 27.Terminal X— Indexes petabyte-scale internal and external financial data at cell and sentence level for AI-powered investment research and decision-making across multiple asset classes.
- 28.Pinecone— Provides a managed vector database for semantic search, recommendations, and RAG workflows at production scale
- 29.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.
- 30.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.
- 31.Soria— Aggregates healthcare-specific financial data from 125+ sources into an AI-native terminal for sector-focused research and analysis.
- 32.Bipsync— Centralizes investment research from emails, documents, and third-party providers into a structured workspace with AI-assisted tagging and collective intelligence tools for institutional teams.
- 33.Homesage.ai— Provides AI-powered investment property search, property analysis reports, and real estate data APIs covering 150M+ US residential properties with computer vision-driven renovation estimates and investment scoring.
- 34.Zillow Research— Provides downloadable CSV datasets and interactive dashboards covering US home values, rental prices, inventory, sales, affordability, and market forecasts at national, metro, and county granularity.
- 35.Thinknum— Provides alternative data scraped from the web covering store locations, job listings, product pricing, real estate listings, car inventories, and app engagement metrics across 450,000+ companies.
- 36.Quantcha— Provides options trade search, screening, analysis, portfolio management, and proprietary options data through a web platform and API.
- 37.IVolatility— Provides institutional-grade historical and real-time options data via API, including implied volatility, Greeks, full chains, and volatility surfaces across 20+ years of equity and futures options markets.
- 38.Trading Economics— Provides access to 20 million economic indicators, forecasts, and financial data for 196 countries through web platform and API
- 39.Tiingo— Provides financial market data APIs covering equities, ETFs, crypto, forex, and fundamentals with historical and real-time access.
- 40.WhaleWisdom— Tracks institutional investor 13F filings, insider transactions, 13D/13G disclosures, and mutual fund holdings with backtesting and portfolio replication tools
- 41.Finaeon— Provides manually transcribed historical financial data from original archives spanning 1000+ years, covering equities, bonds, commodities, exchange rates, and economic indicators with unbroken chain-linked series.
- 42.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.
- 43.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.
- 44.Questflow— Operates an AI agent orchestration platform enabling users to build, deploy and monetize autonomous trading agents across prediction markets, DeFi protocols and on-chain venues
- 45.Carbon Arc— Operates a two-sided insights platform acting as counterparty for proprietary data transactions between parties.
- 46.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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