# Transaction screening Transaction screening allows for real-time analysis of financial operations based on your custom risk logic. Use this tool to evaluate payment parameters, such as directions and amounts, to automate decision-making and identify potentially suspicious activities. ## Submit transaction for screening - [POST /services/transaction-screening](https://docs.kycaid.com/risks-check/transaction-screening/submit-transaction.md): Use this endpoint to submit transaction data for screening. The system analyzes the payment parameters against your selected ruleset_id and delivers the result asynchronously to your callback_url. To identify the customer, you must provide either an internal applicant_id or your external_applicant_id.