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Quickstart: I want to build a dApp

You will need​

  • Node.js >= 20
  • A Catalyst RPC URL

Steps​

  1. Install the SDK package:
npm install @catalyst/sdk
  1. Read the tx lifecycle (so you understand domain separation + receipts):
  1. Follow the SDK guide:

Verify​

  • Deploy a small contract and verify code exists via catalyst_getCode.

Troubleshooting​

  • If signing fails intermittently behind a load balancer, ensure your tooling uses catalyst_getTxDomain (single-call domain).