Providers
Deposit notifiers and gas sponsors, and how to set their keys.
Kite uses outside providers for two jobs, and every chain needs one of each: a deposit notifier and a gas sponsor. Set their keys under Providers in the dashboard; they're stored encrypted with your KITE_ENCRYPTION_KEY.
Deposit notifiers
A deposit notifier watches every pay-in address and calls your server when tokens arrive, so payments settle within seconds. Kite creates the provider's webhooks itself, one per network, the first time a chain needs one.
| Provider | Key | Where to get it |
|---|---|---|
| QuickNode | API key | QuickNode dashboard → API keys |
| Alchemy | Auth token | Alchemy dashboard → Webhooks → Auth token |
Callbacks arrive at KITE_PUBLIC_BASE_URL/callback/..., so that URL must be reachable from the internet. Each callback is verified with the provider's signature before Kite trusts it.
Choose which notifier each chain uses in the chain's configuration. A chain can use more than one.
Changing a notifier's key removes the webhooks made with the old one, and Kite creates new ones as transfers need them.
Gas sponsors
A gas sponsor pays the gas for the operator's transactions: settlements, refunds and recoveries. The operator wallet doesn't need native tokens.
| Provider | Keys |
|---|---|
| Alchemy | API key and gas policy ID |
Choose it per chain in the chain's configuration. A refund or recovery can opt out of it, in which case the operator wallet pays.