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How to use?

To generate a trace, you need two things:
  1. programFile - compiled Cairo program in JSON format for Cairo0 or a Sierra file for Cairo1.
  2. (optional) inputFile - supported input format depends on Cairo and VM version:
    • Cairo1 - text file containing an input array, e.g. [1 [2 3 4]], as described in the Rust VM documentation. Your Cairo main function should use fn main(input: Array<felt252>) -> Array<felt252>.
    • Cairo0, Python VM - JSON file representing program private input (as in cairo-run from cairo-lang)
    • Cairo0, Rust VM - not supported
When submitting a Cairo0 program, you can choose between Rust VM and Python VM. Rust VM is much faster and should be used when possible. However, custom hints, including inputs, are not supported for Rust VM. If your program requires custom hints, use Python VM. Cairo1 only works with Rust VM, and input files are supported there.