# ElkassabgiData [Health: Active]

**Category:** 💰 Finance & Fintech  
**Repository:** https://github.com/elkassabgi/hfdatalibrary  
**GitHub Stars:** 1  
**Views:** 2  
**Installs:** 0  
**Upvotes:** 0  
**Directory Page:** https://allmcps.com/mcp/elkassabgidata

## Description
A growing family of free academic data libraries: finance, economics, and beyond (ElkassabgiData).

## Claude Desktop Quick Installation
Remote MCP endpoint (confidence: high). Install path detected from listing signals. Add as a URL/SSE server in your client:

```json
"mcpServers": {
  "elkassabgidata": {
    "url": "https://api.hfdatalibrary.com"
  }
}
```

## Documentation & README

# HF Data Library

Free 1-minute OHLCV bars for 1,391 U.S. stocks and ETFs, December 2002 → present, updated daily.

**Website / downloads:** https://hfdatalibrary.com · **API:** https://api.hfdatalibrary.com · **DOI:** [10.5281/zenodo.19501605](https://doi.org/10.5281/zenodo.19501605)

## Licensing

This project uses different licences for code and for data.

- **Code** — API clients, MCP server, pipeline, and Worker source: **MIT** (see [`LICENSE`](https://github.com/elkassabgi/hfdatalibrary/blob/HEAD/LICENSE))
- **Data and documentation** — all datasets and derived measures: **CC BY 4.0** (see [`LICENSE-DATA`](https://github.com/elkassabgi/hfdatalibrary/blob/HEAD/LICENSE-DATA))

Data obtained after March 2022 is additionally subject to the
[IEX Historical Data Terms of Use](https://www.iex.io/legal/hist-data-terms).
Data before March 2022 is sourced from PiTrading under their terms.

When using the data, cite *Elkassabgi, A. (2026). HF Data Library: Free 1-Minute
Intraday U.S. Equity Data. Zenodo.* <https://doi.org/10.5281/zenodo.19501605>

## Data sources

| Period | Source | Coverage |
|---|---|---|
| Dec 2002 – Mar 2022 | PiTrading (consolidated tape, CTA/UTP) | All U.S. equity exchanges |
| Mar 2022 – present | IEX Exchange market data (HIST pcap files) | IEX exchange only, ~2–3% of consolidated volume — a reference point, not the full tape |

Post–March 2022 bars reflect IEX-only trading activity. Some tickers have no IEX trades on a given day. See [Known Issues](https://hfdatalibrary.com/pages/issues) before using the post-2022 segment for research.

## Upstream source attribution (required)

Bars dated 2022-03-07 onward are derived from IEX market data. If you redistribute or provide access to this data, include:

> Data provided for free by IEX. By accessing or using IEX Historical Data, you agree to the [IEX Historical Data Terms of Use](https://www.iex.io/legal/hist-data-terms).

IEX retains all rights in the underlying securities information.

## Repository contents

This repo holds the website (`index.html`, `pages/`), the Cloudflare Worker API (`api/`), and the daily data pipeline (`pipeline/` — IEX HIST pcap download, Go TOPS parser, bar building, 9-step cleaning, R2 upload). The data itself is distributed from https://hfdatalibrary.com, not from this repository.

The MCP server that exposes this library (and the Econ and IP libraries) to AI assistants
lives in its own repository: [elkassabgidata-mcp](https://github.com/elkassabgi/elkassabgidata-mcp) — MIT licensed.