Blockchain integration checklist

Blockchain integration differs from an ordinary API integration in one way: a deployed contract and a sent transaction are hard to undo. Settle the following before development starts.

Wallets and permissions

• Who can move the company's wallet, and with how many approvals (multisig)
• Where private keys and seed phrases are stored, and how they're handed over when people change roles
• How limits are split between the operating hot wallet and the cold wallet for storage

API and webhook integration

• How on-chain events (deposits, transfers, contract calls) reach your existing systems
• How many block confirmations you wait for to guard against reorgs
• A fallback path when an external node or indexer goes down

Security and operations monitoring

• Scope and schedule of the contract audit before deployment
• Thresholds for unusual-transaction alerts, and who receives them
• Records of admin actions (audit logs)

More than half of this checklist is operating rules, not technology. That's why it has to be decided before development.

Next article The basics to check when you look at a blockchain project