> For the complete documentation index, see [llms.txt](https://hertzflow.gitbook.io/hertzflow-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hertzflow.gitbook.io/hertzflow-docs/tech-docs.md).

# TECH DOCS

- [Overview](https://hertzflow.gitbook.io/hertzflow-docs/tech-docs/overview.md): Architecture, oracle design, and integration entry points for developers.
- [Smart Contract](https://hertzflow.gitbook.io/hertzflow-docs/tech-docs/smart-contract.md): HertzFlow is built on a modular smart contract architecture deployed on BNB Smart Chain.
- [Reader Contract](https://hertzflow.gitbook.io/hertzflow-docs/tech-docs/smart-contract/reader-contract.md): The Reader contract provides read-only functions to query protocol state, market data, and position information.
- [ExchangeRouter](https://hertzflow.gitbook.io/hertzflow-docs/tech-docs/smart-contract/exchangerouter.md): The ExchangeRouter is the primary entry point for user interactions with the HertzFlow protocol.
- [API](https://hertzflow.gitbook.io/hertzflow-docs/tech-docs/api.md): HertzFlow provides REST APIs for accessing market data, prices, and historical trading information.
- [Market List API](https://hertzflow.gitbook.io/hertzflow-docs/tech-docs/api/market-list-api.md): List all markets with leverage limits, open interest, and 24h stats.
- [Latest Price API](https://hertzflow.gitbook.io/hertzflow-docs/tech-docs/api/latest-price-api.md): Current price and 24h high/low/open/volume for every market.
- [User Activity API](https://hertzflow.gitbook.io/hertzflow-docs/tech-docs/api/user-activity-api.md): Cursor-paginated trade and position history for a wallet.
- [Kline (Candlestick) API](https://hertzflow.gitbook.io/hertzflow-docs/tech-docs/api/kline-candlestick-api.md): Retrieve historical candlestick/OHLC data for tokens.
- [HertzFlow SDK](https://hertzflow.gitbook.io/hertzflow-docs/tech-docs/hertzflow-sdk.md): SDK
- [Overview](https://hertzflow.gitbook.io/hertzflow-docs/tech-docs/hertzflow-sdk/overview.md): The HertzFlow SDK is a comprehensive TypeScript SDK designed for interacting with the HertzFlow protocol on BNB Smart Chain.


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