The Safe Browsing API is an experimental API that allows client applications to check URLs against Google's constantly-updated blacklists of suspected phishing and malware pages. Your client application can use the API to download an encrypted table for local, client-side lookups of URLs.
In addition to providing some background on the capabilities of the Safe Browsing API, this document provides examples for interacting with the API by sending HTTP messages to download lists or perform lookups. This document also includes information and examples on how to perform client-side lookups from a downloaded list.