GitHub's Search API allows you to search GitHub for any specific item you're looking for (users, files, unresolved issues). Each search will return up to 1,000 results and the default sort is by best match. Authenticated requests to the API are limited to 20 per minute, while unauthenticated requests are restricted to 5 per minute. The API is well documented and includes example code for customizing your queries. Examples include: searching for lines of code and how to highlight matching text within code searches, how to search for repositories written a specific language, and searching for issues.