OpenShield is an API service focused on content moderation and fraud prevention, operated by Sway SRL based in Belgium. Users can transmit images or text from their servers to obtain decisions regarding acceptance, review, or rejection, as well as insights into the categories, scores, and thresholds that influenced those decisions. This service encompasses checks for various concerns, including nudity, violence, weapons, hate symbols, hate speech, personal information, spam, scams, and even custom-defined image categories. Moreover, the same API is capable of analyzing content generated by users and interpreting material created by AI agents. To assess events such as sign-ups, logins, or payments, users can send these events and receive responses indicating whether to allow, step up, hold, or block the action, along with the specific rules that prompted such decisions. The pack rules initially operate in shadow mode and can transition to automatic actions following a 30-day replay period. Notably, content is evaluated in real-time and is not retained after processing. OpenShield utilizes openmod and openfraud, which are open-source engines written in Rust and released under the Apache-2.0 license. Its pricing model is based on a prepaid balance for each check, offering up to 2,000 free checks every month without requiring a credit card for access, making it an accessible option for various users. This combination of features provides a comprehensive solution for organizations seeking to maintain safe and compliant digital environments.