VOL. XCIV, NO. 247
FIND MY MOAT EDITOR PICKS
Editor order · Top 15 free tools
Best Free Financial Data APIs
Our editor-ranked free financial data APIs. Global vote totals are shown separately.
These financial data APIs provide free access or durable free tiers. Compare market data, fundamentals, filings, transcripts, estimates, SDKs, rate limits, quotas, documentation, and licensing before upgrading.
Editor-ranked · Free tiers only · Global votes shown
Top 10 Tools
- 1Top pick
Financial Modeling Prep provides API and spreadsheet access to market data, fundamentals, news, calendars, transcripts, ownership, and macroeconomic data. The free Basic tier is an end-of-day test plan. Real-time, global, transcript, 13F, intraday, and bulk access require paid plans. Display or redistribution requires a separate commercial agreement.
Best forMarket data APIFinancial data APIFundamentals dataHistorical market dataEarnings transcript researchWatch-outsFree sandbox is limitedGlobal and advanced datasets require higher tiers - 2
EODHD supplies market data through REST, WebSocket, spreadsheet, and agent interfaces. Datasets cover prices, fundamentals, calendars, news, sentiment, options, foreign exchange, and crypto. The free quota is 20 calls per day, commercial use requires a B2B plan, and some datasets are separate marketplace products.
Best forFinancial data APIHistorical market dataFundamentals dataOptions dataAI agent data accessWatch-outsCommercial use is separateFree API quota is very limited - 3
Alpha Vantage is an API-first source for market and economic data. Developers, students, quants, and analysts can pull stocks, funds, FX, crypto, options, commodities, fundamentals, news, sentiment, and macro series with one key. The free quota is small, and commercial use needs separate licensing.
Best forMarket data APIFinancial data APIHistorical market dataOptions dataFundamentals dataWatch-outsCommercial usage requires separate licensingFree quota is small - 4
Tiingo provides price, fundamentals, corporate-actions, news, forex, and crypto data through REST, WebSocket, JSON, CSV, Python, and AmiBroker. Plans differ in limits, history, and licensing rights.
Best forMarket data APIFinancial data APIHistorical market dataFundamentals dataInvestment newsWatch-outsCommercial use needs the right planData-feed scope varies - 5
Marketstack is an APILayer REST service for prices, end-of-day history, intraday bars, corporate actions, reference data, ETF holdings, bond yields, commodities, analyst ratings, and SEC EDGAR datasets. It suits prototypes and products that need a simple stock API. It is not a charting app, broker, portfolio tracker, or unlimited institutional license.
Best forMarket data APIFinancial data APIHistorical market dataFundamentals dataAnalyst ratingsWatch-outsRequest limits are tight at low tiersNot a full research terminal - 6
FinancialData.Net provides market data, fundamentals, ownership, options, funds, ESG, calendars, and news through REST, Excel, and MCP interfaces. It covers stocks, ETFs, mutual funds, futures, crypto, foreign exchange, commodities, OTC securities, and indexes. The free plan is limited, and the homepage security claims are not supported by a public audit report.
Best forFinancial data APIMarket data APIAI agent data accessFundamentals dataOptions dataWatch-outsSerious use is paidCompliance claims need verification - 7
SEC API is a commercial EDGAR service with filing search, real-time feeds, XBRL-to-JSON conversion, section extraction, insider filings, 13F data, and other regulatory datasets. It is for production ingestion rather than building your own parser. The free tier is small and redistribution needs enterprise terms.
Best forFinancial data APIFundamentals dataInsider and institutional trackingMarket monitoringAI agent data accessWatch-outsFree tier is only a starterSEC-only scope - 8
Calcbench extracts and standardizes financial data and disclosure text from SEC filings. Users can trace values to source documents, compare filings, work in Excel, or license API access separately.
Best forFundamentals dataFundamental researchFinancial data APIAI agent data accessValuation modelingWatch-outsSEC-centered coverageAPI is a paid add-on - 9
Quartr provides earnings calls, live transcripts, filings, reports, decks, estimates, AI chat, and investor-relations data. The app is useful for free call and transcript access; Pro and API serve professional research, MCP, webhooks, and integrations.
Best forEarnings transcript researchAI research workspaceFinancial data APIInvestment research workspaceResearch reportsWatch-outsPro and API are contact-sales productsQualitative research focus - 10
Fiscal.ai combines a company-research terminal with REST, webhook, and MCP access. It covers financials, segments, KPIs, estimates, transcripts, filings, screens, valuation, ownership, fund letters, and AI-assisted research.
Best forAI research workspaceFundamental researchFinancial data APIAI agent data accessValuation modelingWatch-outsFree access is limitedMarket prices are not fully real-time
- 11
Trading Economics provides indicators, calendars, forecasts, market data, company financials, news, ratings, and events through web, REST, WebSocket, spreadsheet, BI, and AI integrations. It is data infrastructure for dashboards and pipelines, not a broker or adviser. Plans control streaming, limits, and commercial rights.
Best forFinancial data APIMarket data APIHistorical market dataMarket monitoringAI agent data accessWatch-outsReal API use is paidRate and row limits apply - 12
Börsdata gives investors long-history Nordic fundamentals, ratios, screens, ownership, insider and short-selling data, technical charts, reports, watchlists, calendars, and spreadsheet or API access. It is strongest for Nordic equities. Global data, holdings, Excel or Sheets workflows, and the REST API depend on the plan.
Best forGlobal stock screeningStock screeningFundamental researchFinancial data APIDividend analysisWatch-outsBest value is Nordic-firstAPI and global depth are paid-tier features - 13
Estimize collects crowdsourced EPS, revenue, and macro forecasts before company reports and economic releases. It gives investors and data teams an expectations benchmark alongside official estimates. It is not a portfolio manager or execution platform.
Best forAnalyst ratingsMarket monitoringFinancial data APIAlertsStock screeningWatch-outsNarrow estimates productFull access is paid - 14
Financial Filings provides public-company filings through a free web index, APIs and a hosted MCP server. It supports document search, Markdown extraction, standardized financials, webhooks and enterprise data delivery.
Best forFinancial data APIAI agent data accessMarket monitoringResearch reportsFundamental researchWatch-outsSelf-serve limitsFilings product, not full terminal - 15
SEC.gov EDGAR is the official free source for U.S. company, fund, insider, and 13F filings, with full-text search, RSS, bulk archives, and public JSON APIs. It is the validation source for filings research, not a polished commercial terminal.
Best forFinancial data APIFundamentals dataInsider and institutional trackingMarket monitoringResearch reportsWatch-outsFair-access limitsRaw source, not enrichment
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.
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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.