Smart Contract API - Blockradar

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.

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

Endpoints

Method	Endpoint	Description
`POST`	`/wallets/{walletId}/contracts/read`	Read from a contract (master wallet)
`POST`	`/wallets/{walletId}/contracts/write`	Write to a contract (master wallet)
`POST`	`/wallets/{walletId}/contracts/write/sign-only`	Sign-only contract write (master wallet)
`POST`	`/wallets/{walletId}/contracts/network-fee`	Estimate fee for contract write (master wallet)
`POST`	`/wallets/{walletId}/addresses/{addressId}/contracts/read`	Read from a contract (child address)
`POST`	`/wallets/{walletId}/addresses/{addressId}/contracts/write`	Write to a contract (child address)
`POST`	`/wallets/{walletId}/addresses/{addressId}/contracts/write/sign-only`	Sign-only contract write (child address)
`POST`	`/wallets/{walletId}/addresses/{addressId}/contracts/network-fee`	Estimate fee for contract write (child address)

Full API Reference

View all smart contract endpoints in the API Reference tab.

Asset Recovery API Miscellaneous API