Crypto trading strategy with API integration.

I require a working strategy for crypto markets that will be executing trades on an API basis. Hence, a strategy and an algorithmic version of it that will work on major DEXs.
Preferably strategy should be intraday or scalping. Swings are not that welcome.

Please remember that if you are approaching me with an offer, I would require a working demo version to run it at least for a week to see its profitability.