Arbitrum Developers

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Arbitrum Developers

Arbitrum Developers

@ArbitrumDevs

Technical resource hub for all @arbitrum developers. Tutorials, updates, and technical announcements.

Katılım Haziran 2022
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Arbitrum Developers
Arbitrum Developers@ArbitrumDevs·
Open House is back! This time: $800k in prizes. Four global cities. Not a hackathon, not a hacker house, but a global program built for founders who are serious about shipping, not just weekend builders. First stop: New York City 🗽 Register now 👇🏻 openhouse.arbitrum.io/?utm_source=tw…
Arbitrum@arbitrum

Open House 2026 is officially live - A global program for founders & builders - $800,000 in prizes - Four cities First stop: New York City 🗽 Register now openhouse.arbitrum.io/?utm_source=tw…

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Arbitrum Developers
Arbitrum Developers@ArbitrumDevs·
Building with AI Agents on Arbitrum? This is for you. @blockbyvlog just shipped a proper process-isolated KMS on top of @OpenWallet - agent gets a scoped token, KMS does the signing in complete isolation. No more secrets sitting next to your LLM. Watch the full video here👇🏻
Daniel Ortega@blockbyvlog

Building Secure Key Management for AI Agents Last week, @VitalikButerin explained his mental model on LLM agents and why they need sandboxing, because “malicious activity can happen too quickly to be detected.” That's why I built a process-isolated KMS to manage agents' secrets locally. 00:00 The problem every agent framework still has 00:46 A local KMS Architecture breakdown 02:23 Live demo (zero-trust signing in action) 04:06 Conclusions

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Arbitrum Developers
Arbitrum Developers@ArbitrumDevs·
If you’re building in AI, payments, or DeFi, this is for you. Open House London isn’t just another program. It’s a focused path from idea → product → launch, with real support all the way. Online Buildathon starts May 25th, with $115K in prizes and grants 👇🏻
Arbitrum@arbitrum

Registration is now open for Open House London. Open House London is a builder program + startup accelerator for founders, designed to help launch new businesses into the programmable economy on the Arbitrum Platform. All early-stage teams building AI, payments, or DeFi primitives onchain are welcome to register. Why apply? 👇🧵 openhouse.arbitrum.io/?utm_source=tw…

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Arbitrum Developers
Arbitrum Developers@ArbitrumDevs·
Here’s what best practices for agent wallets should actually look like. @blockbyvlog explains why current setups are risky and how the new Open Wallet Standard (OWS) fixes it with encrypted local vaults and a policy engine. If you’re working on agents, watch this video now 👇🏻
Daniel Ortega@blockbyvlog

AI Agent Wallets Are Broken. Let's Fix That. 00:00 The actual problem 02:20 OWS Architecture 05:22 Step-by-step guide 08:18 Next Steps Every AI agent today uses a raw private key in .env, loaded in memory with full signing power, signing anything the LLM asks. That's the default. It doesn't have to be. Today on @arbitrum we visit the new Open Wallet Standard (OWS) by @moonpay

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Arbitrum Developers
Arbitrum Developers@ArbitrumDevs·
ERC-7715 is now live on Arbitrum! Agents and apps can now request scoped permissions from MetaMask users to execute transactions on their behalf. The programmable economy grows. 🌍
MetaMask Developer@MetaMaskDev

If you've ever used a Web3 wallet, you know the drill... Constant pop-ups, repeated approvals, switching back and forth just to get one thing done. Advanced Permissions change all of that. Now live on @MetaMask. 🦊 Instead of signing every transaction, Advanced Permissions allow users to grant scoped, time-bound access to a dapp or agent once. 🧵

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Arbitrum Developers
Arbitrum Developers@ArbitrumDevs·
The ArbiLink Agentic Bounty is now closed and no longer accepting submissions. Huge thank you to everyone who built and participated - we’ve seen some really strong submissions come through! We’ll be reviewing entries and announcing results soon. Stay tuned 👀
Arbitrum Developers@ArbitrumDevs

ArbiLink is live - so is the Agentic Bounty 🧵👇🏻 We’re kicking off a new challenge for builders exploring AI x onchain: 🏆 $250 USDC for top 3 ✈️ Chance to win a funded trip to Arbitrum Open House London 🌍 Open to everyone (online) 🗓 Starts now → Ends Apr 3, 19:30 CET Join now: notion.so/arbitrumfounda…

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Arbitrum Developers
Arbitrum Developers@ArbitrumDevs·
Builder’s Block #014 is live! This edition covers Mentorship Program partners, the ArbiLink Agentic Bounty (win a trip to Open House London), and the Arbitrum Foundation’s 6th Annual Transparency Report. Dive in now 👇🏻 blog.arbitrum.foundation/builders-block…
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Arbitrum Developers
Arbitrum Developers@ArbitrumDevs·
How to get started: 1. Build your skill 2. Register your agent on the Arbitrum identity registry 3. (Optional) Deploy a live agent 4. Submit your work Full details + resources below 👇 notion.so/arbitrumfounda…
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Arbitrum Developers
Arbitrum Developers@ArbitrumDevs·
What we’re looking for: Agents that can: • Deploy contracts • Use wallets (EOAs, smart wallets, session keys) • Read onchain data • Bridge assets • Interact with ecosystem protocols Bonus if you: ⭐ Build something novel ⭐ Integrate with an Arbitrum-native project
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Arbitrum Developers
Arbitrum Developers@ArbitrumDevs·
ArbiLink is live - so is the Agentic Bounty 🧵👇🏻 We’re kicking off a new challenge for builders exploring AI x onchain: 🏆 $250 USDC for top 3 ✈️ Chance to win a funded trip to Arbitrum Open House London 🌍 Open to everyone (online) 🗓 Starts now → Ends Apr 3, 19:30 CET Join now: notion.so/arbitrumfounda…
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Arbitrum Developers
Arbitrum Developers@ArbitrumDevs·
Prioritize your security from day one on Arbitrum 🔐 Launched in Aug 2025, the Arbitrum Audit Program has helped projects access high-quality smart contract audits, removing a key blocker to shipping securely. Applications are still open. Apply here 👇🏻 tally.so/r/3xzEzv?progr…
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Arbitrum Developers
Arbitrum Developers@ArbitrumDevs·
If you’re at @EthCC, ArbiLink is worth showing up for. Panel on agentic rails w/ serious builders in the ecosystem, but more importantly: the Agentic Bounty. Build an AI agent that interacts with Arbitrum. $250 for top 3 + funded trip to the next Arbitrum Open House in London!
Ben Greenberg@hummusonrails

The event to be at @EthCC is @arbitrum ArbiLink: - Meet @EdFelten from @Offchain and hear the latest on Arbitrum with an AMA - Join a panel on building the agentic rails with -- @VittoStack from @ethereumfndn -- @Swagtimus from @arbitrum -- @umeirzz from @virtuals_io -- @Med_Amine_ID from @bondoncredit - Participate in the agent bounty for a chance to win USDC cash prizes and a funded trip to the next Arbitrum Open House. Registration link in the post below. Tomorrow. Doors open at 4 pm. 📍

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Arbitrum Developers
Arbitrum Developers@ArbitrumDevs·
“Trust us” has been the default for backend systems for decades - that’s no longer enough. Stylus gives devs a new deployment target for Rust, allowing them to run logic onchain with verifiable execution. No new languages. No rewrites. Read more here 👇🏻 blog.arbitrum.foundation/rust-onchain-a…
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Arbitrum Developers
Arbitrum Developers@ArbitrumDevs·
Hello! As a follow up to Monday’s (March 23 2026) Arbitrum Sepolia network outage and out of an abundance of caution, we are asking all node operators to upgrade all of their nodes to Nitro 3.9.8 at their earliest convenience. This release is available as a Docker Image on Docker Hub at offchainlabs/nitro-node:v3.9.8-4624977. This recommendation applies to node operators for all Arbitrum chains. Thank you for your understanding!
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