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The Smart Contract API lets you interact with any on-chain smart contract directly from a Blockradar wallet without managing ABIs, gas estimation, or RPC providers yourself.

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What you can do

  • Call read functions on any contract
  • Execute write functions that modify on-chain state
  • Use sign-only mode to sign contract interactions without broadcasting
  • Estimate network fees for contract writes

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Endpoints

MethodEndpointDescription
POST/wallets/{walletId}/contracts/readRead from a contract (master wallet)
POST/wallets/{walletId}/contracts/writeWrite to a contract (master wallet)
POST/wallets/{walletId}/contracts/write/sign-onlySign-only contract write (master wallet)
POST/wallets/{walletId}/contracts/network-feeEstimate fee for contract write (master wallet)
POST/wallets/{walletId}/addresses/{addressId}/contracts/readRead from a contract (child address)
POST/wallets/{walletId}/addresses/{addressId}/contracts/writeWrite to a contract (child address)
POST/wallets/{walletId}/addresses/{addressId}/contracts/write/sign-onlySign-only contract write (child address)
POST/wallets/{walletId}/addresses/{addressId}/contracts/network-feeEstimate fee for contract write (child address)

Full API Reference

View all smart contract endpoints in the API Reference tab.