Insights from the Bootnode team

The blockchain ecosystem has fragmented into hundreds of specialized chains. Developers who embrace multi-chain architecture today will build the most resilient and accessible applications. We explore why a unified API approach is essential, how to design apps that work across chains, and the infrastructure patterns that make multi-chain development practical at scale.

Account abstraction promises to make blockchain wallets as easy to use as email. After helping hundreds of teams ship ERC-4337 implementations, we share what works, what does not, and how to avoid the most common pitfalls. Topics include gas sponsorship strategies, session key architecture, bundler selection, and the real-world costs of running a paymaster.

Behind every blockchain application is an RPC layer handling the heavy lifting. We share the architecture and engineering decisions that allow Bootnode to serve over 10 billion API requests per day across 100+ chains with sub-100ms latency and 99.999% uptime. Topics covered include our edge caching strategy, global load balancing, automatic failover, and how we monitor the health of thousands of blockchain nodes.

Most blockchain applications need to react to onchain events in real time. Developers typically choose between polling RPC endpoints or subscribing to webhooks. We compare both approaches across latency, reliability, cost, and implementation complexity, and show when each approach makes sense. Includes practical examples for tracking token transfers, NFT mints, and smart contract events.