Skip to content

You should know who is on the other end of a request.

These are the people who built it. They already shipped routing for production RPC. Hopscotch is that gateway, pointed at models.

  • Kevin Callahan

    CEO & Co-Founder · Twitter, Coinbase, Uniblock

    Kevin led global business development, strategy, and operations at Twitter, then growth and ecosystem partnerships at Coinbase, joining before the IPO. In 2022 he founded Uniblock: one API, many chains, and failover when a provider would not answer.

    Hopscotch is that same gateway, pointed at models. The people who already built routing for production RPC are the people who built this.

  • David Liu

    Co-Founder · UofT, ANIFTY, Uniblock

    David teaches blockchain at the University of Toronto, where a guest lecture became a software engineering course. He has had seven-figure exits, including ANIFTY, and he co-founded Uniblock as CTO: the routing layer, the adapters, the thing that answers when a chain's provider does not.

    Hopscotch is the same problem, on models instead of chains.

  • James Liu

    Founding Eng Lead · Uniblock

    James led engineering at Uniblock.

    The hop list, the four failure classes, and the adapters that speak each upstream: that is the surface he owns here.

  • Thomas Harvie

    Partnerships · Uniblock

    Thomas runs partnerships. Capacity, contracts, and the teams deciding whether to send production traffic through a gateway this early.

    If you are here because someone reached out, it was probably him.

  • Robert Pham

    Founding Designer · Immortals, Complexity, FaZe Clan, Uniblock

    Robert designed this product, the dashboard, and this site: one system, not a marketing coat over a different one. He has done that kind of work in more than one industry.

    Before this he played professionally for Immortals, Complexity, and FaZe Clan in VALORANT, and ranked first globally in Spectre Divide.

  • Engineering

    Catalog and adapters

    Labs ship new weights. Providers change a rate, a slug, or an error shape. Every model on this API has an adapter that speaks that upstream.

    150+ models, one chat.completions shape. That is the list they keep.

Now send a request.

The names are who is on the other end of it. A key is how you start.

Start buildingDocs