ArbOS 40 “Callisto” is now live on Arbitrum One and Nova!. This upgrade brings new capabilities from @Ethereum’s Pectra hard fork including:. EIP-7702 (Account Abstraction).EIP-2537 (BLS Precompile).EIP-2935 (Block Hash Access).And a minor Stylus fix for devs. Let’s dive in 👇.

Submit your deployed agent, template, or contribution here 👇🏻.

The future of DeFi is agentic, and we want it built by you. From simplifying yield strategies to inventing new primitives, your contributions can shape what’s next. Build for everyone, build on @Arbitrum. Arbitrum Everywhere.

What’s Vibekit?. Vibekit is Arbitrum’s native agent framework developed by @EmberAGI, designed for building modular, autonomous DeFi agents. It’s fast, composable, and already supports Pendle, GMX, Aave, Camelot + tools like Hyperbolic, Eliza, Allora, and more.

Need inspiration?. We’re especially keen to fund:.•Agents running complex DeFi strategies.•Backtesting suites for Vibekit agents.•Farcaster mini-apps using agent logic.•Frontend modules that extend agent UX.

You’re eligible if you’re building any of the following with Vibekit:.•DeFi agents executing innovative or profitable strategies.•Agent plug-ins or add-ons.•Open-source agent templates.•New integrations or capabilities.•UI tooling like P&L tracking or trade history.

Grant Overview. We’re offering $1 million in grants to support builders who launch agents, agent templates, or any of the contributions below with VibeKit, demonstrating clear utility and performance, with a cap of $10k per submission.

Trailblazer 2.0 is here: $1M to fund DeFi agents built with Vibekit, Arbitrum’s native agent framework developed by @EmberAGI. If you’re building bots, strategies, or infra that acts on-chain, this is your chance to ship with funding, fast. 🧵👇

RT @RnDAO__: Last week to apply to the Arbitrum Ecosystem Pitch Day! 🚀. We’re bringing together @arbitrum builders with active investors in….

RT @Churro808: a tip for new builders -> choose an ecosystem that has . - diverse revenue streams .- eco investment programs led by the com….

Namaste @Arbitrum_India 🇮🇳 Welcome to the big blue family 💙🧡. If you are based in India, we're cooking something really special for you - Stay tuned 👀.

Try out the platform yourselves here.

👀 Remember our Project Spotlight on Speedrun Stylus?. One of our Ambassadors took it for a spin, exploring Stylus fundamentals, setting up his dev environment, and sharing what stood out most while building with it. Curious what it really feels like? His thread says it best 👇.

Apply here now:.

Just a quick reminder — ArbiFuel is live!. Sponsored gas for early-stage builders shipping on @Arbitrum. Gas on us. Build on you.

Check out the video here:.

Thought Stylus only supports Rust or C++? Think again. @wakeuplabs has been working on AssemblyScript integration — making it easier for TypeScript & script-style devs to build on @arbitrum Stylus. Watch it in action 👇.

Ready to build with GMX?. Explore the leverage trading mechanics, dive into the protocol’s architecture, and master the math that powers it. Check out the course here:.

The most comprehensive GMX Perpetuals Trading course, taught by @ProgrammerSmart, is now live on @CyfrinUpdraft. Build GMX-based protocols from the ground up:.🔹 Mechanics, fees, funding math.🔹 Order types, liquidations, ADL.🔹 GLP, staking, delegation. Read the thread below 👇.

Apply here:.

ArbiFuel = Free gas for early builders. If you’re shipping on @Arbitrum, don’t miss this chance to onboard users with no friction.