Any access to or use of craigslist to design, develop, test, update, operate, modify, maintain, support, market, advertise, distribute or otherwise make available any program, application or service (including, without limitation, any device, technology, product, computer program, mobile device application, website, or mechanical or personal service) that enables or provides access to, use of, operation of or interoperation with craigslist (including, without limitation, to access content, post content, cross-post content, re-post content, respond or reply to content, verify content, transmit content, create accounts, verify accounts, use accounts, circumvent and/or automate technological security measures or restrictions, or flag content) is prohibited.

I don't believe they can (or perhaps "should be allowed to") stop people from accessing their site via http (which is a protocol or api). Either way, it feels the same to me; I think it's relevant.