Use an API Key for Lightning Transactions
Lightning requests gain an optional alternative to the privateKey parameter.
Lightning transactions now accept an apiKey in place of the privateKey parameter. Developers can generate the key through the Trade API page and use it across trading, transfers, burns, token creation and other supported methods.
The change adds an optional authentication path; the existing parameter remains supported. ZeroSlip’s documentation describes the API key as an encrypted representation of the wallet’s private key, so it remains a sensitive credential that authorises wallet operations.
This update changes the credential supplied to Lightning requests. ZeroSlip still signs and broadcasts those transactions on your behalf. See the Trade API documentation for the setup flow.