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Important: If you're upgrading snforge to version 0.48.0 or later, please read the 0.48.0 Migration Guide.

Calling Contracts

Overview

Starknet Foundry sncast supports calling smart contracts on a given network with the sncast call command.

The basic inputs that you need for this command are:

  • Contract address
  • Function name
  • Inputs to the function

For a detailed CLI description, see the call command reference.

Examples

General Example

$ sncast \
  call \
  --network sepolia \
  --contract-address 0x522dc7cbe288037382a02569af5a4169531053d284193623948eac8dd051716 \
  --function "balance_of" \
  --arguments '0x0554d15a839f0241ba465bb176d231730c01cf89cdcb95fe896c51d4a6f4bb8f'
Output: 
Success: Call completed

Response:     0_u256
Response Raw: [0x0, 0x0]

📝 Note Call does not require passing account-connected parameters (account and accounts-file) because it doesn't create a transaction.

Passing block-id Argument

You can call a contract at the specific block by passing --block-id argument.

$ sncast call \
  --network sepolia \
  --contract-address 0x522dc7cbe288037382a02569af5a4169531053d284193623948eac8dd051716 \
  --function "balance_of" \
  --arguments '0x0554d15a839f0241ba465bb176d231730c01cf89cdcb95fe896c51d4a6f4bb8f' \
  --block-id 77864
Output: 
Success: Call completed

Response:     0_u256
Response Raw: [0x0, 0x0]