Northline ChainKit
Preflight any address on Base or Arc before paying or approving it: EOA vs contract vs EIP-7702-delegated wallet, EIP-1967 proxy implementation/admin, owner(), Safe multisig threshold, ERC-20 metadata, USDC + native balance, Sourcify verification, and risk flags.
- Category
- Crypto & DeFi
- Starting price
- $0.001
- Paid calls · 30 days
- 0
- Unique payers · 30 days
- —
Paid endpoints
5 endpoints, sorted by usage. Prices are per request.
- GET/v1/address/profile
Preflight any address on Base or Arc before paying or approving it: EOA vs contract vs EIP-7702-delegated wallet, EIP-1967 proxy implementation/admin, owner(), Safe multisig threshold, ERC-20 metadata, USDC + native balance, Sourcify verification, and risk flags.
$0.005Base0calls / 30d - GET/v1/payment/verify
Verify that a transaction paid at least N USDC to an address on Base or Arc (handles Arc native-USDC logs). Returns verified true/false, confirmations, matching transfers and reasons. Use it to confirm a customer paid before delivering.
$0.003Base0calls / 30d - GET/v1/tx/explain
Explain a Base or Arc transaction in plain JSON: status, confirmations, fee, method selector, created contract, and every ERC-20 transfer decoded with symbol and decimals.
$0.004Base0calls / 30d - GET/v1/usdc/balances
USDC and native balance of one address on both Base and Arc in a single call.
$0.002Base0calls / 30d - GET/v1/network/status
Live block height, gas price and fee estimates (transfer, ERC-20 transfer, contract call) for Base or Arc. On Arc fees are quoted directly in USDC.
$0.001Base0calls / 30d