BuildBear Labs @_BuildBear
A Better Way to Build 🛠️ | Production-grade testing environments | “The Github of Web3” | Trusted by @consensys to @chainstackHQ w/ 200k+ active sandboxes buildbear.io Singapore Joined August 2022-
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Check out our latest blog where we analyze the $41K Yellow Duck Token (YDT) hack. We simulate the attacker’s transaction on the BSC mainnet, retrace the full attack path to uncover the underlying vulnerability, and explore potential fixes that could have prevented the exploit.…
Hardhat v3 transforms Ethereum dev with multichain simulation, native Solidity testing, and flexible build profiles. Faster builds, robust tests, and seamless multi-network workflows are here. Read the full blog on BuildBear: buildbear.io/blog/hardhat-v…
Learn Cross Program Invocation (CPI) in Solana with Anchor. This tutorial walks through setting up and using a PDA as a signer to call another program via CPI, along with testing and verification on localnet. Check out full tutorial here: buildbear.io/docs/tutorials…
Solana’s architecture is built for performance, not by chance but through design. It uses 8 key systems, from Proof of History for timekeeping to Sealevel for parallel execution. Here’s a breakdown of how each part contributes to throughput and scalability:…
We published a walkthrough of auditing the Euler Vault Kit using the @Olympix_ai VS Code extension. This tutorial shows how static analysis helps flag bugs early. Olympix is a great tool for this. Read here: buildbear.io/docs/tutorials…
We published a walkthrough of auditing the Euler Vault Kit using the @Olympix_ai VS Code extension. This tutorial shows how static analysis helps flag bugs early. Olympix is a great tool for this. Read here: buildbear.io/docs/tutorials…
If you're interested in learning about Solana, its architecture, infrastructure, smart contracts & accounts, then check out our latest blog where we cover, blockchain fundamentals, validator clients, slots & epochs, the SVM, contracts and account mechanics of the @solana…
ERC-4337 smart accounts are powerful, but setting up bundlers and testing real flows can be a hassle. With BuildBear's @pimlicoHQ Plugin, you can deploy smart accounts and execute UserOps using the Alto Bundler. Check out the full tutorial with a video walkthrough:…
In most setups, executing complex multi-transaction scripts often requires the --slow flag for proper nonce management. With @_BuildBear's Sandboxes, you don't need it ! Our infra handles nonce management and transaction sequencing seamlessly, even for multi-step contract…
BuildBear Sandbox is live with Pectra, enabling native batching and temporary smart account delegation. Learn how to implement EIP-7702's Smart Account features in our latest tutorial, where we walk through simulating an EOA upgrade, executing signed batch calls, and sponsoring…
Analyze every detail of your smart contract transactions with the Sentio Plugin on BuildBear. From call traces to fund flows, gas profiling, and state diffs. Run your contracts in a sandbox, then visualize and break down everything with a single click. Check out our brief…
Test and debug real cross-chain flows using the @AcrossProtocol plugin on BuildBear Sandboxes. Custom Plugin API routes with programmable relayers, unlimited faucets, and reliable deposit status tracking. The plugin brings bridging logic with full control, unlocked tokens,…
We integrated @pimlicoHQ's ERC20 Paymaster along with Alto Bundler into the Pimlico Plugin on BuildBear to enable true ERC-4337 development and testing without native funds and hassle of API Keys. Checkout our full tutorial with video walkthrough where we cover creating smart…
Account abstraction is the next frontier for Ethereum wallets, enabling programmable, feature-rich smart accounts in place of legacy EOAs. Two major efforts ERC-4337 and EIP-7702, take different paths to this goal. We break down the key differences, pros and cons, and how they…
Execute token swaps on @Uniswap V3 with ERC-4337 smart accounts using the @pimlicoHQ Plugin on BuildBear Sandbox. Our step-by-step tutorial, complete with a video walkthrough, shows how to set up smart accounts, execute token swaps, and send user ops as well as full transaction…
Need accurate mainnet state from @Uniswap V2 for your DeFi protocol? Check out our guide on syncing Uniswap V2 reserves in a BuildBear Sandbox. Visualize and Debug with @sentioxyz plugin. buildbear.io/docs/tutorials…
Batua.sh by @pimlicoHQ streamlines the integration of smart accounts into your application. With support for passkey-secured wallets, sponsored gas, batched transactions, shadcn theming, and full code-level control, Batua brings modern account abstraction…
ChaosChain, a research initiative from the team at @NethermindEth , is pioneering a future where AI agents contribute to Ethereum protocol development, L2 innovation, and on-chain governance. Explore how agentic systems are set to reshape the ecosystem: buildbear.io/blog/chaoschai…
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