On October 9, 2026, Anthropic rolled out a voluntary service named OSS Scanner, which offers complimentary vulnerability detection for open-source initiatives. Utilizing the Claude large language model, this service conducts ongoing security assessments for vital open-source code repositories. Project custodians are required to proactively apply for this service, and Anthropic will assess each application by considering the project's significance to infrastructure and user safety, its susceptibility to remote exploitation, and its level of dependencies. Presently, entities from the cryptocurrency domain and various other sectors have submitted their applications for inclusion. The reports produced by OSS Scanner encompass specifics about vulnerabilities, methods to replicate them, and AI-driven solutions for remediation. High-risk vulnerabilities are reported following established protocols. This tool is capable of swiftly performing preliminary screenings of extensive codebases, thereby easing the security inspection load for open-source maintainers. Nonetheless, AI-based scanning might yield false positives, and an abundance of alerts could potentially amplify the workload for open-source teams.