Hiro Systems
Hiro Systems build developer tools for Bitcoin L1 and the Stacks L2
https://hiro.so
Hiro System builds developer tools for Bitcoin L1 and the Stacks L2 (layer-2). Stacks is a Bitcoin layer for smart contracts; it's an open-source project with an ecosystem of independent entities. Hiro serves 350M+ monthly API requests and thousands of crypto users on dev products.