# `mix t3.interfaces`
[🔗](https://github.com/dl-alexandre/t3-elixir/blob/main/lib/mix/tasks/t3.interfaces.ex#L1)

`mix t3.interfaces` prints the known interface families and operation counts.
`mix t3.interfaces --json` prints their complete catalogs as JSON.
This command does not contact T3 or execute its CLI.

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*Consult [api-reference.md](api-reference.md) for complete listing*