The Sygna Wallet Address Filter (WAF) API is a key feature that enables you to determine whether a specific wallet address belongs to a VASP or an unhosted wallet based on the Sygna server's directory and your selected blockchain analytics (KYT) vendor. If the wallet address is associated with an un-hosted wallet, your KYT vendor will return a risk score for the address. If you have not yet collaborated with a blockchain analytics vendor, please contact [email protected]