> ## Documentation Index
> Fetch the complete documentation index at: https://docs.bigdata.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Introduction

## Structured Data REST APIs

Welcome to Bigdata's **Structured Data REST APIs**, your gateway to comprehensive, programmatic access to financial, company, market, and analyst data. Our APIs provide reliable, up-to-date information to support research, analytics, integrations, and client-facing applications.

Whether you're building dashboards, monitoring market events, or performing deep financial analysis, our REST APIs give you structured access to the data you need.

***

## Key Capabilities

### Company Data

* **[Company Profile](https://docs.bigdata.com/api-reference/company-&-events/company-profile)** – Retrieve comprehensive company information including identifiers, sector, industry, executive leadership, and descriptive metadata.
* **[Stocks & Funds Screener](https://docs.bigdata.com/api-reference/company-&-events/stocks-&-funds-screener)** – Filter and screen stocks and funds based on financial, market, and descriptive attributes.
* **[Events Calendar](https://docs.bigdata.com/api-reference/company-&-events/events-calendar)** – Upcoming and historical company and market events (e.g., earnings dates, dividends) with pagination support.
* **[ESG Scores](https://docs.bigdata.com/api-reference/company-&-events/esg-scores)** - Environmental, Social, and Governance scores providing sustainability and risk-related insights where available.

### Financial Statements & Metrics

* **[Income Statement](https://docs.bigdata.com/api-reference/financials-&-ratios/income-statement)** – Revenue, expenses, and profit data over historical periods.
* **[Balance Sheet](https://docs.bigdata.com/api-reference/financials-&-ratios/balance-sheet)** – Assets, liabilities, and equity at reporting periods.
* **[Cash Flow Statement](https://docs.bigdata.com/api-reference/financials-&-ratios/cash-flow-statement)** – Operating, investing, and financing cash flows.
* **[Key Metrics (TTM)](https://docs.bigdata.com/api-reference/financials-&-ratios/key-metrics-ttm)** – Core trailing twelve-month performance metrics including growth, margins, and efficiency indicators.
* **[Company Ratios (TTM)](https://docs.bigdata.com/api-reference/financials-&-ratios/company-ratios-ttm)** – Trailing ratios such as P/E, ROE, and other financial performance metrics.

### Market Data

* **[Daily Prices](https://docs.bigdata.com/api-reference/market-data/daily-prices)** – End-of-day equity prices (OHLC) and volume.
* **[Intraday Prices](https://docs.bigdata.com/api-reference/market-data/intraday-prices)** – High-resolution, within-day equity price data.
* **[Price Changes](https://docs.bigdata.com/api-reference/market-data/price-changes)** – Percent and absolute price change metrics.
* **[Quote](https://docs.bigdata.com/api-reference/market-data/quote)** – Latest real-time or near-real-time quote for equities.

### Analyst & Estimates Data

* **[Earnings Surprise](https://docs.bigdata.com/api-reference/analyst-estimates/earnings-surprises)** – Actual earnings vs. consensus with surprise metrics.
* **[Analyst Estimates](https://docs.bigdata.com/api-reference/analyst-estimates/analyst-estimates)** – Detailed forward-looking forecasts for earnings, revenue, and other financial indicators.
* **[Analyst Ratings](https://docs.bigdata.com/api-reference/analyst-estimates/analyst-ratings)** – Aggregated Buy/Hold/Sell ratings and consensus data.

### Fund Holdings

* **[Fund Holdings](https://docs.bigdata.com/api-reference/holdings/funds-holdings)** – Institutional fund positions, portfolio breakdowns, and summary metrics for ownership and exposure analysis.

***

## Why Use Our APIs

* **Comprehensive Coverage:** All core structured data in one unified platform.
* **Scalable:** Supports high-volume queries and robust integrations.
* **Reliable & Consistent:** Structured, normalized responses designed for programmatic consumption.
* **Real-Time & Historical:** Access both live and historical data for thorough analysis.
* **Developer-Friendly:** Fully RESTful endpoints with pagination, filtering, and consistent schemas.

***

## Getting Started

1. **Authentication:** All APIs require an API key. Include it in your headers for secure access.
2. **Explore the API:** Browse our endpoints for company data, financials, market data, analyst insights, and more.
3. **Test in the Playground:** Use our interactive API playground to try requests and inspect responses.
4. **Integrate:** Use structured JSON responses to build dashboards, alerts, and custom analytics workflows.

***

## Resources

* [API Reference](https://docs.bigdata.com/api-reference) – Full list of endpoints with parameters, examples, and response schemas.
* [Release Notes](https://docs.bigdata.com/release-notes) – Keep up to date with the latest API updates and new endpoints.
* [Developer Guide](https://docs.bigdata.com/getting-started/introduction) – Best practices, tutorials, and integration tips.

***

> **Tip:** Start with the endpoints that match your use case.
>
> * For financial analysis: **Income Statement, Balance Sheet, Key Metrics (TTM)**
> * For market monitoring: **Daily Prices, Intraday Prices, Quote APIs**
> * For investment research: **Fund Holdings, Analyst Estimates, Earnings Surprise**