Fluxy vs HaasOnline
Fluxy vs HaasOnline: managed platform vs power-user automation
HaasOnline is one of the oldest names in crypto automation: deep scripting with HaasScript, self-hostable infrastructure, and serious flexibility for power users who want to own every knob. Fluxy aims at a different center of gravity — Python instead of a proprietary scripting language, a hosted engine where research and live execution are the same code, and the fund-side machinery (NAV accounting, managed accounts) that automation tools leave out.
Credit where due
Where HaasOnline shines
Deep scripting control
HaasScript exposes fine-grained control over order logic and indicators for users who want to program every detail, as of writing.
Self-hosting option
TradeServer can run on your own hardware — full infrastructure ownership for those who want it.
Automation longevity
Operating since the early bot era, with a mature feature set across many exchanges.
Side by side
Where the two part ways
| Fluxy Fund | HaasOnline | |
|---|---|---|
| Custody | Non-custodial — trade-only keys, withdrawals disabled at the venue | Non-custodial — API-key based |
| Language | Python on a typed engine API, with AI-written, backtest-validated code | HaasScript (proprietary), visual editor available |
| Backtesting realism | Point-in-time joins, settlement-clock funding, delisting realism, IS/OOS | Historical + simulated testing per script |
| Research-to-live gap | Same engine runs the backtest and the live mandate | Script runs live on TradeServer after testing |
| Investor accounting | Unitized NAV, high-water-mark fees, statements — built in | Not a fund-accounting product |
| Hosting | Hosted platform | Cloud or self-hosted |
Competitor details reflect public information as of writing and may change; verify current features with the vendor. Comparisons focus on product design, not performance claims.
The honest verdict
Which one is for you?
Choose HaasOnline if you want maximal knob-level control in a dedicated scripting environment, possibly on your own hardware. Choose Fluxy if you want Python, an honest research loop, and a platform that can carry the result all the way to managed accounts and investor statements.