Northline ChainKit
northline-chainkit.northline-c86.workers.dev · 5 paid endpoints · listed 2026-10-27
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.
livelast check 5 days ago
100%valid x402 answers, 72 h
$0.022USDC received on Base, 7 days
3distinct payers, 7 days
54.1score (0-100)
Paid endpoints
| Method | Endpoint | Price | Networks |
|---|---|---|---|
| GET | northline-chainkit.northline-c86.workers.dev/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 |
| GET | northline-chainkit.northline-c86.workers.dev/v1/usdc/balances USDC and native balance of one address on both Base and Arc in a single call. | $0.002 | Base |
| GET | northline-chainkit.northline-c86.workers.dev/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 | $0.003 | Base |
| GET | northline-chainkit.northline-c86.workers.dev/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 an | $0.004 | Base |
| GET | northline-chainkit.northline-c86.workers.dev/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(), | $0.005 | Base |
Latest checks
| When | Endpoint | HTTP | ms | Result |
|---|---|---|---|---|
| 5 days ago | northline-chainkit.northline-c86.workers.dev/v1/address/profile | 402 | 559 | valid x402 v2 terms |
Income on Base (7 days)
| Day | Transfers | USDC | |
|---|---|---|---|
| 2026-10-30 | 9 | $0.019 | |
| 2026-10-29 | 1 | $0.001 | |
| 2026-10-27 | 1 | $0.001 | |
| 2026-10-26 | 1 | $0.001 |
Is this your API?
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Claim it for free with
<a href="https://logicnodes.io/observatory/p/northline-chainkit.northline-c86.workers.dev"><img src="https://logicnodes.io/observatory/badge/northline-chainkit.northline-c86.workers.dev.svg" alt="x402 status"></a>
Claim it for free with
x402_provider_claim (sign with your payout address), and get an alert within minutes when it stops answering with x402_monitor_create ($5 for 30 days). Both work over MCP (https://logicnodes.io/mcp/v2) or POST https://logicnodes.io/v1/tools/<tool>.Income is all USDC received by the provider's payout address on Base, whatever the source. Score: 0-100: 50 x share of checks in the last 72 h that returned valid x402 payment terms + 30 x min(1, log10(1 + USDC received in 7 days) / 4) + 20 x min(1, log10(1 + distinct payers in 7 days) / 3). A provider never checked scores on income only; income is all USDC received by its payout address on Base, whatever the source. JSON: /v1/observatory/providers/northline-chainkit.northline-c86.workers.dev