Blocknative API shutting down June 19, 2026 — drop-in replacement available

Hi @AlphaWallet,

I noticed this repo uses Blocknative (found in `app/src/main/java/com/alphawallet/app/repository/EthereumNetworkBase.java`) — heads up that **Blocknative was acquired by Deloitte and their gas estimation API is shutting down on June 19, 2026** (less than 4 weeks away).

I built [LogicNodes](https://logicnodes.io) as a direct drop-in replacement, live today.

**Migration is 2 lines:**

```js
// Before (Blocknative — shutting down June 19)
const res = await fetch('https://api.blocknative.com/gasprices/blockprices', {
headers: { 'Authorization': BN_API_KEY }
});

// After (LogicNodes — live now, same fields)
const res = await fetch('https://logicnodes.io/call/eip1559_gas_estimator', {
method: 'POST',
headers: { 'Content-Type': 'application/json', 'X-API-Key': LN_API_KEY },
body: JSON.stringify({ chain: 'base', speed: 'fast' })
});
// result.result.max_fee_gwei, result.result.priority_fee_gwei
```

**What you get:**
- Base, Ethereum, Arbitrum, Optimism — real `eth_feeHistory` 100-block analysis
- Pay-per-call via USDC on Base ($0.001/call, no key needed) or monthly from $9
- Cryptographically signed responses (EIP-191)
- Free trial: `POST https://logicnodes.io/free-trial/eip1559_gas_estimator`

Full migration guide + live demo: https://logicnodes.io/blocknative

Happy to help with any migration questions — just reply here.

— Conner @ LogicNodes ([DENNEYTRADINGCO LLC, AZ](https://logicnodes.io))