From quicknode-pack
Sets up QuickNode Streams for real-time on-chain event processing with custom filters and webhook delivery to Node.js/Express apps.
How this skill is triggered — by the user, by Claude, or both
Slash command
/quicknode-pack:quicknode-webhooks-eventsThis skill is limited to the following tools:
The summary Claude sees in its skill listing — used to decide when to auto-load this skill
Set up QuickNode Streams for real-time on-chain event processing with custom filters and webhook delivery.
Set up QuickNode Streams for real-time on-chain event processing with custom filters and webhook delivery.
1. Dashboard > Streams > Create Stream
2. Select chain: Ethereum Mainnet
3. Filter: Contract events for specific address
4. Destination: Webhook URL
5. Set payload format: JSON
import express from 'express';
const app = express();
app.post('/webhooks/quicknode', express.json(), async (req, res) => {
const events = req.body;
for (const event of events) {
console.log(`Block: ${event.blockNumber}`);
console.log(`TX: ${event.transactionHash}`);
console.log(`Topics: ${event.topics}`);
// Process on-chain event
await processBlockchainEvent(event);
}
res.status(200).json({ received: true });
});
// Stream filter function (runs on QuickNode infrastructure)
function main(data) {
const targetContract = '0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48'; // USDC
const transferTopic = '0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef';
return data.streamData.filter(tx => {
return tx.logs?.some(log =>
log.address.toLowerCase() === targetContract.toLowerCase() &&
log.topics[0] === transferTopic
);
});
}
| Issue | Cause | Solution |
|---|---|---|
| No events received | Filter too restrictive | Test with broader filter first |
| Duplicate events | Block reorganization | Implement idempotency by tx hash |
| Webhook timeout | Slow processing | Return 200 immediately, process async |
Optimize performance: quicknode-performance-tuning
npx claudepluginhub jeremylongshore/claude-code-plugins-plus-skills --plugin quicknode-packImplements Alchemy Notify webhooks for real-time blockchain events: address activity, mined txs, smart contracts. Covers curl API setup and TypeScript Express handler with signature verification.
Builds EVM transaction workflows using QuickNode and ethers.js: send ETH, call smart contracts, listen for events via WebSocket, estimate gas.
Creates, edits, and optimizes skills for Claude Code, including drafting, evaluating with test prompts, iterating on performance, and improving skill descriptions for better triggering accuracy.