A solid gateway for broadcasting transactions and estimating gas across 20+ chains including XLayer, Ethereum, Solana, and Base. Handles the tedious stuff like binary integrity checks, version drift warnings, and automatic updates from GitHub releases. The pre-flight checks are thorough, verifying SHA256 checksums and handling rate limits gracefully. Good command separation too: this handles broadcasting and gas estimation while other OKX skills cover swaps and portfolio tracking. The Chinese keyword mapping is a nice touch for international users. It's basically the plumbing you need when you want to get transactions on-chain without writing your own RPC wrapper.
npx skills add https://github.com/okx/onchainos-skills --skill okx-onchain-gateway