Credits

It is possible for users to subscribe to a credit-based API Key system: each request consumes a pre-definied amount of credits from your balance. This is the default model for users that subscribe to a free trial key.

For users with API credits, the credit spend per request is summarized in the below table:

Request	Response status	Description	Cost (credits per request)
predictAddressSingle	success	The API returned a successful response on a valid address	5
predictAddressSingle	warning: Address belongs to a smart contract	The requested address belongs to a smart contract which is out of the scope of analysis of the model	2
predictAddressSingle	warning: Address has no activity	The requested address has no activity on Ethereum: either it doesn't exist or its activity is only on other chains. Support for additional chains will be added over time.	1
predictAddressSingle	error	There is an error in the headers or payload (user side) or internal error preventing the API from returning a valid response	0