Quicknode

GIWA Testnet is now live on Quicknode. GIWA is an Ethereum L2 from Upbit, built on the OP Stack with 1-second block times. A few reasons builders are looking at it: • Backed by Dunamu, the company behind Upbit, Korea's largest exchange by trading volume • Full EVM compatibility, so existing contracts and tooling port over without changes • Low-latency RPC on the same global infrastructure Quicknode runs across 80+ chains and 140+ networks You can test your dApps on GIWA Sepolia today, ahead of mainnet. Get started ↓ https://lnkd.in/eqAnd-Hk

Address screening should fit into the RPC flow you use. `ofac_check` checks an address against the latest OFAC SDN list via your Quicknode endpoint. The list refreshes daily, with versioned artifacts and detached signatures for verification👇 https://lnkd.in/gHm-ndBm

If you call `eth_signTransaction` and get `unknown account`, it doesn't mean your endpoint is broken. The endpoint can't sign because it doesn't hold your private key. Sign locally, then send the signed bytes with `eth_sendRawTransaction`. Full guide👇 https://lnkd.in/ezFh4953

With x402 on Quicknode, a wallet is enough. Fund it with free testnet tokens, then use up to 1,000,000 free API credits every month to query mainnet data through JSON-RPC or REST. No account, API key, or credit card required. https://lnkd.in/ecaHwnBw

Early-stage teams have enough unknowns. Blockchain infrastructure should not be one of them. Our Startup Program provides eligible teams with product credits and direct technical guidance so they can focus on building their product. Beyond infrastructure, teams get partner introductions, opportunities to showcase what they’re building, and support across the Quicknode ecosystem. Apply: https://lnkd.in/eTyec8sH

Moving into a new ecosystem should extend your product, not multiply the infrastructure behind it. Quicknode brings the networks and tooling your team needs into one platform. Choose where your product goes next: https://lnkd.in/efAqhn98

If you’re running your own Robinhood Chain node, the Nitro container is only part of the setup. You still need Ethereum execution and Beacon access, persistent storage, and a way to verify the node is synced. The complete setup ↓ https://lnkd.in/eDwz_seN

Every AI agent shipping right now is running on borrowed credentials. Your API key. Your account. Your card on file. The agent picks the action, but a human still owns the ability to take it. We keep calling that autonomous. It isn’t. And you can’t fix it with a better model. A smarter LLM is still standing in the same doorway, waiting for someone to open it. What actually moves the line is unglamorous infrastructure: • A wallet the agent controls, so it holds value instead of asking for it • An identity other agents can verify before they transact (ERC-8004) • A way to pay per request with no account at all (x402) • A clean path from decision to signed transaction, with real guardrails Stack those pieces, and something interesting happens. Trustless. Programmable. Permissionless. Blockchain spent a decade pitching those three words to humans who mostly didn’t want them. Agents want all three. Full breakdown of the onchain AI agent stack: https://lnkd.in/enK_MnSN

If you're building Web3 in Claude, Cursor, or Codex, you've been pasting docs into the chat. The build-web3 plugin puts a skill and the Quicknode MCP in the agent. It can plan and review the app. Products show up when they're needed Install it and ask the agent to plan a Web3 app👇 https://lnkd.in/ez_5qXaN

If you run your own Hyperliquid node, you know how much a reliable, fast peer matters. Introducing Hyperliquid Peering. Your node stays yours and now peers with Quicknode. Full block data and the full mempool, on one connection. That's the feed a strategy should be reading. 3 dedicated IPs, redundant across multiple datacenters, with a 99.99% SLA. More details ↓ https://lnkd.in/eijhX4GK Subscribe ↓ https://lnkd.in/ekqDj5mP