OpenChain tools
OpenChain Event Signature by Topic
Looks up the event signature for a 32-byte topic0 hash (0x plus 64 hex digits, the keccak-256 of the event signature) in the OpenChain…
$0.0026 per call
Blockchain
OpenChain Function Signature by Selector
Looks up the function signature for a 4-byte selector (first four bytes of EVM calldata, for example 0xa9059cbb) in the OpenChain signature…
$0.0026 per call
Blockchain
OpenChain Selector from Function Signature
Finds the 4-byte selector (and the 32-byte event topic) for an exact signature text such as transfer(address,uint256), by searching the…
$0.0026 per call
Blockchain
You pay the price shown. If a call turns out to cost more than its quote, you pay the actual price, capped at twice the quote. Run omnial_execute with dry_run: true for an exact quote.