★ A CURATED DIRECTORY OF FINANCIAL TOOLS AND RESOURCES ★
VOL. XCIV, NO. 247
Wednesday, June 24, 2026
Best Free Financial Data APIs
Community-ranked free financial data APIs ordered by net upvotes with starred picks breaking close calls.
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Want more options? The full Best Financial Data APIs list includes 20 tools across all pricing tiers.
Top 10 picks
10 picks- 1
Fiscal.ai is an AI-assisted public-company research terminal and financial data API platform for investors, analysts, developers, and AI-agent builders. It combines global fundamentals, segments and KPIs, transcripts, filings, estimates, dashboards, screeners, valuation workflows, AI Copilot, REST APIs, webhooks, and MCP access.
List votesPricing: Free • From $468/yrPlatforms: Web, API - 2
FinancialReports.eu is a public-company filings database, filings API, and hosted MCP server for analysts, AI-agent builders, and data teams that need fast document ingestion, Markdown extraction, watchlist alerts, webhooks, and filing Q&A across global markets. It is strongest when the workflow starts with filings rather than price charts: company documents, insider trades, IPO references, filing feeds, and programmatic document access are the center of the product. Free access is mainly for testing; Analyst or Enterprise is needed for serious API, MCP, AI chat, and production workflows.
List votesPricing: Free • From $379/yrPlatforms: Web, API - 3
EODHD is a market-data API provider for developers, quants, and analysts who need REST, WebSocket, spreadsheet, and AI-agent access to historical prices, fundamentals, calendars, news, sentiment, options, forex, crypto, and other financial datasets. It is strongest for API-first data workflows, but free usage is tiny, commercial licensing is separate, and some datasets require add-ons or marketplace plans.
List votesPricing: Free • From $19.99/moPlatforms: Web, API, Desktop - 4
Financial Modeling Prep (FMP) is a market-data API and spreadsheet-data provider for developers, analysts, quants, and product builders who need equities, ETFs, funds, FX, crypto, commodities, macro, ESG, ownership, news, calendars, transcripts, and fundamentals from one vendor. It is strongest when you want REST and WebSocket access plus Excel and Google Sheets add-ins at a lower entry price than enterprise terminals. The main buying questions are plan limits, geography, history depth, and dataset access: the free Basic tier is a limited EOD sandbox, while real-time, global, transcript, 13F, holdings, intraday, and bulk workflows require paid tiers.
List votesPricing: Free • From $22/moPlatforms: Web, Desktop, API - 5
Alpha Vantage is an API-first financial data provider for developers, students, quants, and analysts who need a simple API key for stock, ETF, mutual fund, FX, crypto, options, commodities, fundamentals, news, sentiment, and macroeconomic datasets. It is strongest for learning, prototypes, spreadsheets, and personal API workflows, but the free quota is small, premium endpoints require membership, and commercial use needs separate licensing.
List votesPricing: Free • Contact for pricingPlatforms: Web, API - 6
Quartr is a qualitative public-market research platform for earnings calls, real-time transcripts, filings, reports, slide decks, analyst estimates, AI chat, and investor-relations data. The mobile app is useful for free earnings-call and transcript access, while Quartr Pro and Quartr API serve professional research, MCP, webhook, and data-integration workflows.
List votesPricing: Free • Contact for pricingPlatforms: Web, Mobile, API - 7
Trading Economics is a macro and markets data platform for browsing economic indicators, calendars, forecasts, market data, company financials, news, ratings, and corporate events, with paid REST API, WebSocket, spreadsheet, BI, and AI-assistant integrations. It is strongest for developers, analysts, and teams building dashboards, alerts, research apps, and macro data pipelines from one source. Guest credentials provide limited sample access, while Standard, Professional, and Enterprise plans govern real API use, streaming, rate limits, row limits, and commercial rights. It is data infrastructure, not a broker or investment-advice service.
List votesPricing: Free • From $149/moPlatforms: Web, Mobile, Desktop, API - 8
Börsdata is a Nordic-first equity analytics, screening, and data platform for investors who want long-history fundamentals, thousands of ratios, strategy screens, ownership data, insider and short-selling context, technical charts, reports, watchlists, calendars, and API or spreadsheet access. It is strongest for Nordic stock research, while global coverage, holdings data, Excel/Sheets workflows, and REST API access depend on paid tiers and professional users are routed to Enterprise.
List votesPricing: Free • Contact for pricingPlatforms: Web, API - 9
Calcbench is a professional SEC filing, XBRL, financial statement, disclosure, and Excel research platform for analysts who need traceable as-filed numbers, standardized accounting metrics, footnotes, redlines, proxy data, compensation data, M&A details, and API access. It is strongest for accounting-heavy U.S. equity research and data workflows, but meaningful access is priced for professional users and API access is sold separately from standard subscriptions.
List votesPricing: Free • From $6000/yrPlatforms: Web, Desktop, API - 10
Estimize is a crowdsourced earnings and macro-estimates platform for investors and data teams that want alternative expectations data before company reports and economic releases. Use it for EPS, revenue, and macro forecast context, not for broad portfolio management or trading execution.
List votesPricing: Free • From $99/moPlatforms: Web, API
- 11
FinancialData.Net is an API-first financial data platform for developers, analysts, spreadsheet users, and AI-agent builders who want broad market data, fundamentals, ownership, options, funds, ESG, calendars, news, Excel access, and MCP connectivity from one provider. It is strongest when breadth matters: stocks, ETFs, mutual funds, options, futures, crypto, forex, commodities, OTC securities, indices, filings-related datasets, and institutional/insider activity can sit behind one REST API. Serious use is paid, and compliance/security claims should be verified directly because the local profile does not include public audit reports.
List votesPricing: Free • From $19/moPlatforms: Web, API, Desktop - 12
Marketstack is an APILayer REST market-data API for developers who need stock prices, end-of-day history, intraday bars, corporate actions, reference data, ETF holdings, bond yields, commodities, analyst ratings, and SEC EDGAR company datasets through JSON endpoints. It is useful for prototypes and products that need a simple stock market API with a free tier and clear paid plans. It is not a charting app, broker, portfolio tracker, screener UI, or unlimited institutional data license.
List votesPricing: Free • From $9.99/moPlatforms: Web, API - 13
Tiingo is an API-first market data provider for developers, quants, and small teams that need transparent flat-rate access to prices, fundamentals, corporate actions, news, forex, and crypto data. It is strongest when the user wants JSON, CSV, REST, WebSocket, Python, and AmiBroker-friendly data access rather than a consumer portfolio app. Free and paid plans differ by endpoint access, usage limits, history, and commercial rights. Tiingo is not a broker, portfolio tracker, research terminal, or blanket redistribution license; users need the right plan for business and commercial use.
List votesPricing: Free • From $30/moPlatforms: Web, API - 14
SEC API is a commercial SEC/EDGAR API suite for developers, quants, compliance teams, and AI products that need fast filing search, real-time feeds, XBRL-to-JSON conversion, section extraction, insider filings, 13F data, and other structured regulatory datasets. It is strongest when you want production-ready normalized SEC data instead of building your own EDGAR ingestion stack, but the free tier is only a small starter allowance and redistribution requires enterprise terms.
List votesPricing: Free • From $55/moPlatforms: Web, API - 15
GuruFocus is a value-investing research platform for investors who want global fundamentals, valuation tools, GF Score, GF Value, screeners, backtesting, guru and institutional holdings, insider trades, portfolio tracking, spreadsheet add-ins, and data/API access. It is strongest for fundamental and value-oriented research rather than brokerage execution.
List votesPricing: Free • From $549/yrPlatforms: Web, Mobile, API, Other
Need production data access?
Explore the full list of 20 financial data APIs, including premium providers for market data, fundamentals, filings, transcripts, estimates, SDKs, quotas, uptime, and licensing.
See all financial data APIsBest Free Financial Data APIs FAQ
What belongs on this financial data APIs page?
This page is for API-first financial data products with endpoints, documentation, SDKs, quotas, rate limits, exports, licensing, or data delivery workflows for developers and data teams.
How is this different from stock analysis software?
Stock analysis software is investor-facing. Financial data APIs are developer-facing or data-team-facing products used to build apps, models, dashboards, databases, and internal research systems.
Are filing and transcript APIs included?
Yes, when API access is a primary workflow. Interactive filing search and transcript research products still fit better on their dedicated SEC filing or earnings call transcript pages.
Information
About Me
Hey! Thanks for stopping by. I'm an independent investor with a soft spot for coding and the stock market - especially value investing (as you can probably tell from the tools I've collected here, haha). Hopefully you'll find something useful or interesting along the way.
Find me here:
- Twitter / X: @Jera_Value
- Website: Jera Value
Got questions or suggestions? I'm all ears!
Missing a Tool?
Discovered a gem I don't have here yet? Drop the link below and I'll check it out ASAP. Tagging me on X works too! Can't wait to see what you've found!
Starred Tools
These are my top picks. Tools I've tested thoroughly and found to be excellent. They do their job really well, and I use them a lot. If you're not already familiar with them, I highly recommend checking them out.
Tested Tools
These are tools I've tried and found to be solid, but not standout. Think of them as passing an initial quality screen: worth exploring, though not all will be exceptional.
Curation & Accuracy
This directory blends AI‑assisted discovery with human curation. Entries are reviewed, edited, and organized with the goal of expanding coverage and sharpening quality over time. Your feedback helps steer improvements (because no single human can capture everything all at once).
Details change. Pricing, features, and availability may be incomplete or out of date. Treat listings as a starting point and verify on the provider’s site before making decisions. If you spot an error or a gap, send a quick note and I’ll adjust.