Lancaster Library Alma Webhook Handler (open source)
An AWS serverless application written and maintained by Lancaster University Library that listens for Ex Libris Alma webhook events and forwards them to backend SNS topics. It is Lancaster's own code, published under github.com/lulibrary alongside the Library's Alma cache lambdas, Pure extraction tooling (puree, research_metadata, DMAOnline) and Talis Aspire reading-list tools. It is reference implementation and infrastructure, not a callable Lancaster endpoint, and is recorded as such rather than counted as a hosted API.