Compare
Creo and the alternatives.
Five ways to put factor numbers on a portfolio, and what each one actually gives you. Checked November 8, 2026.
Side by side
| Creo | riskprism | Eulerpool | yfinance notebook | Licensed risk model | |
|---|---|---|---|---|---|
| What it is | A hosted API that computes named factor exposures and risk contribution on the book and prices you send. | An open-source (MIT), Barra-style US equity risk model with a free hosted API, MCP server and weekly artifacts. | A broad financial-data API. Its documentation lists factor exposure, factor covariance and portfolio-risk endpoints. | Code your agent writes on top of the yfinance library. | An enterprise risk model such as MSCI Barra or Axioma. |
| Factor model | Raw characteristics (beta, size, momentum, low volatility, liquidity, plus opt-in SEC value and quality). No cross-sectional z-scores or factor covariance. | Market, 9 styles and 30 industries, with factor covariance and specific risk. | Not checked: the risk-model methodology isn't described on the pages we read. | Whatever you write, often Fama-French regressions. | Full cross-sectional model with factor covariance and specific risk. |
| Universe | Any ticker you have daily prices for, including crypto in its own sleeve. | About 6,100 US common stocks. | Eulerpool's covered securities. | What Yahoo Finance serves. | The vendor's universe. |
| Where prices come from | You send them. Creo fetches only public SEC EDGAR filings. | Yahoo's chart API (its build metadata says price_provider: yahoo). Fundamentals from EDGAR. | Eulerpool's data, under its terms. | Yahoo Finance, through an unofficial library. | The vendor's licensed data. |
| Freshness | Daily, as fresh as the series you send. | Weekly builds. The hosted build was dated 2026-10-16 when we checked on 2026-11-08. | Free tier data is 15-minute delayed, per its docs. | Today's adjusted history; delisted names are often missing. | Managed by the vendor. |
| Point in time and provenance | valid_at cutoff; SEC facts count only if filed by then, each with its accession number. Missing is null with a reason, never zero. | Fundamentals by EDGAR filed date. Its docs say the price panel is a current snapshot, so history has survivorship bias. | Not checked. | Up to you. | Managed by the vendor. |
| Publishing the output | No third-party data restriction from Creo: your inputs plus public filings. Commercial use needs a paid plan. | Code is MIT. Its docs say raw prices are never redistributed and you should check your price provider's terms. | Set by Eulerpool's terms and your plan. | The yfinance README says the Yahoo Finance API “is intended for personal use only.” | Set by your license agreement. |
| Agent setup | llms.txt, OpenAPI, hosted MCP; a key from one POST, or keyless for the demo. | Keyless JSON API, MCP server and a model.md mirror. | MCP server and SDKs; needs a free API key. | The agent writes and debugs code each time. | Usually a sales process before any API access. |
| Cost to start | Free key: 100 calls a day, 5 positions. Builder $49 a month, Pro $199. | Free. | Free tier: 100,000 requests a month, no card. | Free library; you pay in time and data risk. | Enterprise contract, priced on request. |
When to use which
Use Creo when you already have prices, from your own records or a feed you are licensed to use, and want named, explainable exposures with provenance an agent can cite. It is also for books outside one vendor's universe: crypto, newly listed names or internal series.
Use riskprism when you want a free, full cross-sectional US equity model with factor covariance and stress tests, and weekly freshness and its Yahoo-based price source fit your use.
Use Eulerpool when you also want broad market data, quotes and fundamentals, from one vendor behind one key.
Use a notebook for personal research, when you want to change the math yourself and the numbers never leave your desk.
Use a licensed risk model when you need vendor-maintained coverage, specific-risk forecasts, or a model your compliance team already signs off on. Creo does not replace one.
Try Creo
One keyless call scores the demo book:
curl -s https://itscreo.com/v1/demo/exposures | jq '.exposures[] | {factor_id, value}'
Then send your own book, or read llms.txt if you are an agent.
Sources
- riskprism: README and docs/DECISIONS.md,
and its hosted
/api/v1/metaand/model.md, read 2026-11-08. - Eulerpool: developer docs, MCP server page and API overview, read 2026-11-08. We did not sign up or call its risk endpoints.
- yfinance: README.
Product names belong to their owners. We describe other tools from their public pages and may have missed changes since. Something wrong or out of date? Tell us and we will fix it.