Introduction
A comprehensive SEC filings API that provides structured financial and corporate data directly from official sources.
What is StockFit API?
StockFit API is a developer-focused data platform that delivers structured and traceable financial information parsed directly from SEC EDGAR filings. It solves the problem of accessing and normalizing complex, unstructured financial data from official regulatory sources. This SEC filings API offers ready-to-use endpoints for income statements, balance sheets, cash flow statements, earnings data, and more. It is suitable for investors, quant developers, and research platforms that require reliable, auditor-grade financial data to power their applications, models, and investment decisions. By providing data that is updated daily and fully traceable back to the original XBRL, it ensures transparency and accuracy for critical financial analysis.
Key Features of StockFit API
Financials API
This core feature provides direct access to structured income statement API, balance sheet API, and cash flow statement API data, parsed from raw XBRL with full traceability, including growth rates and health scores.
SEC Filings API
Access a wide range of official documents, including 10-K, 10-Q, 8-K, DEF 14A, and S-1 IPO prospectus data, with capabilities for section extraction and a predicted filing calendar.
Earnings API
Utilize the earnings calendar API to get predicted announcement dates, along with historical EPS data, dividend history, and earnings quality metrics for comprehensive performance analysis.
Stock & ETF Screener API
Filter US equities and funds using the stock screener API and ETF screener API based on AI-classified business models, margin structures, and financial health scores, not just basic multiples.
ETF Holdings API
Perform detailed fund analysis with full portfolio holdings from NPORT-P filings, enabling look-through analysis, overlap comparison, and exposure modeling for ETFs.
Ownership API
Track institutional and insider activity by accessing 13F holdings, beneficial owner data from Schedule 13D/G, and insider transactions from Forms 3, 4, and 5.
Use Cases for StockFit API
Building Investment Research Platforms
Developers can integrate the SEC filings API to create platforms that automatically pull and display structured financials, earnings history, and filing documents for in-depth company analysis.
Quantitative Modeling and Backtesting
Quant teams can use the structured income statement API and balance sheet API data to feed financial models, calculate ratios, and backtest investment strategies with reliable, as-reported numbers.
Screening for Investment Opportunities
Traders and analysts can leverage the powerful stock screener API to filter thousands of companies based on specific financial criteria, business models, or ownership signals to identify potential investments.
ETF and Fund Analysis
Financial advisors and fund managers can use the ETF holdings API to analyze portfolio composition, check for holdings overlap between funds, and assess fee structures and fund flows.
How to Use StockFit API
- Sign Up for Access: Visit the StockFit developer portal to register for an account. A free tier is available to start testing the API endpoints.
- Review the Documentation: Explore the comprehensive Swagger documentation linked from the homepage to understand available endpoints like
/api/financials/income-statementor/api/screener/stocks. - Authenticate Your Requests: Use your provided API key to authenticate HTTP requests to the StockFit API servers.
- Make Your First API Call: Start by calling a simple endpoint, such as the income statement API for a known ticker, to receive structured JSON data.
- Integrate into Your Application: Parse the returned JSON data and integrate the live SEC filings and financial data into your own application, dashboard, or model.
Target Audience for StockFit API
- Quantitative Developers and Data Scientists: Professionals building automated trading systems, financial models, or data pipelines.
- FinTech Startups and Established Platforms: Companies creating investment research tools, robo-advisors, or portfolio management software.
- Investment Analysts and Research Firms: Individuals and teams needing programmatic access to clean, structured financial data for deep analysis.
- Academic Researchers: Scholars studying markets, corporate finance, or accounting who require reliable, granular data from SEC filings.
Is StockFit API Free?
StockFit API offers a free tier, allowing users to test the service and integrate basic data. For detailed pricing on higher-volume plans with more features and requests, users should refer to the official StockFit website.
| Plan | Price | Features |
|---|---|---|
| Free Tier | $0 | Access to core endpoints with limited call volume, suitable for testing and small projects. |
| Paid Plans | Variable | Increased rate limits, access to premium endpoints (e.g., advanced screeners, historical data), and priority support. |
StockFit API's Pros and Cons
| Aspect | Pros | Cons |
|---|---|---|
| Data Source & Quality | Data is parsed directly from official SEC XBRL, ensuring high traceability and accuracy. | As-reported data may require additional normalization for specific analytical models. |
| Coverage | Comprehensive coverage of US equities, ETFs, and key SEC filings like the S-1 IPO prospectus. | Primarily focused on US markets; international company data is not a focus. |
| Developer Experience | Clear REST API structure with extensive Swagger documentation for easy integration. | Users must have technical expertise to implement and manage API integrations. |
| Functionality | Offers unique features like AI-classified business models and an ETF screener API. | The breadth of features might have a learning curve for new users. |
Frequently Asked Questions about StockFit API
Is StockFit a real SEC filings API?
Yes. StockFit API's primary data source is the SEC's EDGAR database. It provides structured access to 10-K, 10-Q, 8-K, S-1, and many other filing types through dedicated endpoints.
Do you offer an income statement and balance sheet API?
Yes. Separate endpoints exist for the income statement API (/api/financials/income-statement) and the balance sheet API (/api/financials/balance-sheet), both providing data parsed directly from XBRL.
Is there an earnings calendar API?
Yes. The platform includes an earnings calendar API (/api/earnings/calendar) that returns predicted earnings announcement dates for specified stock symbols.
Do you offer a stock screener API?
Yes. StockFit provides a stock screener API (/api/screener/stocks) that allows filtering based on AI-classified business models, financial health scores, and margin structures.
Do you offer an ETF holdings API?
Yes. An ETF holdings API (/api/fund/holdings) is available, delivering full portfolio holdings data parsed from official NPORT-P filings for analysis and overlap checks.
Do you provide data for IPO companies via an S-1 API?
Yes. The API includes endpoints to access S-1 IPO prospectus data, offering details on expected share price, count, and use of proceeds directly from the registration filings.
StockFit API Tags
SEC filings API, financial data API, income statement API, balance sheet API, cash flow statement API, earnings API, stock screener API, ETF screener API, S-1 IPO API, ETF holdings API, SEC EDGAR data, quantitative finance API, investment research data, XBRL parser API
