Northline ChainKit
northline-chainkit.northline-c86.workers.dev
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
- Service
- Networks
- Base
- Starting price
- $0.001
- Paid calls, 30 days
- 0
Paid endpoints
5 endpoints, sorted by usage. Prices are per request.
| Endpoint | Price | Network | Facilitator | Calls / 30d |
|---|---|---|---|---|
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. | $0.005 | Base | PayAI | 0 |
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. | $0.001 | Base | PayAI | 0 |
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. | $0.003 | Base | PayAI | 0 |
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. | $0.004 | Base | PayAI | 0 |
GET/v1/usdc/balances USDC and native balance of one address on both Base and Arc in a single call. | $0.002 | Base | PayAI | 0 |
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