Blogger vs Facebook

Blogger API v3 is Google's REST/JSON interface for its blogging platform, letting apps retrieve and manage blogs, posts, comments, and pages. Public data can be read with a plain API key, but writing content or touching private data requires a full OAuth 2.0 authorization flow. The docs still list the deprecated v1.0 and v2.0 protocol guides alongside the current v3.0 reference, reflecting a mature, low-churn API that hasn't needed a v4.

Meta's Graph API is the single HTTP interface behind Facebook Login, Page management, and Social Plugins, exposing versioned endpoints under graph.facebook.com that read and write data about people, Pages, and Groups once a user grants OAuth permissions. Most scopes that touch another person's data or a business Page require Meta's app review process before they work outside development mode, and the same Graph API infrastructure also underlies Instagram's Business API stack.