KraiNode is an open-source developer tool that brings Postman-style simplicity to blockchain RPCs.

I’ve managed production infrastructure across 13+ blockchains and learned how painful RPC reliability can get at scale. KraiNode turns that experience into a community tool that makes blockchain development smoother for everyone.

The mission is simple: make blockchain RPC access easier, safer, and more transparent for developers and teams everywhere. With grant support, we’ll expand integrations with public RPC providers (Alchemy, Blast, PublicNode, etc.), add multi-chain test suites, and maintain a sustainable open-source model that keeps KraiNode free for builders.

Every Web3 developer knows the frustration: broken endpoints, inconsistent latency, missing headers, or juggling ten RPC URLs just to query a blockchain. It slows down building, testing, and debugging smart contracts. Traditional API tools don’t fit the JSON-RPC flow, and most RPC dashboards are built for providers, not developers.

KraiNode is a lightweight, open-source RPC playground where any developer can test blockchain endpoints directly in their browser (Ethereum, Base, Arbitrum, and more) with full request customization, retries, latency metrics, and clean response handling. No backend tracking, no saved API keys, just a safe sandbox for experimenting with public and private RPCs.

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