Layer vs. Opposable

One API for prediction markets. Find markets, stream normalized data, place orders, and track positions across Kalshi and Polymarket. Hi HN, I'm David. I built Layer, an API + SDK or building trading bots/ai agents across prediction markets.The idea came from something i kept running into while playing with trading bots. Once your bot needs access to more than 1 venue, you suddenly have to deal with different market schemas, contract definitions, prices, fees and APIs before you can reason about where to trade. That gets messy real fast, especially with prediction markets. The same real-world event can exist on Kalshi & Polymarket, but the contracts can be represented differently.Here's my broader thesis:...

Opposable is computer use for phones. Claude Code, Codex or an on-device model can see, tap and type across every app on a real Android phone, yours or one in our cloud. hey! we built Opposable (named because it gives your AI thumbs to use a smartphone) to bring the computer use revolution to smartphones in a easy-to-use and not too hacky way. most of our life is already on our phones, this enables you to do a lot of things while the phone is in your back pocket.some things /are/ hacks, like using a flashable bluetooth dongle to play as a keyboard+mouse to control iPhones.. but it works!