> For the complete documentation index, see [llms.txt](https://docs.intentable.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.intentable.io/intent-structure/calls.md).

# Calls

Every FCT must have at least one call.

Each call defines one executing of a smart contract function or a transfer of native token (ETH) to an address

All calls that exist inside an FCT are executed on the the same native blockchain transaction.\
This makes FCT atomic regardless of the number of contracts and accounts involved in execution.