Dropbox

Dropbox API v2 provides comprehensive file storage and collaboration functionality with OAuth 2.0 authentication supporting short-lived access tokens and long-lived refresh tokens.

The REST API covers files, folders, sharing, Paper documents, file properties, webhooks, and team management extensively.

Three endpoint types: RPC (api.dropboxapi.com), content-upload, and content-download (both on content.dropboxapi.com).

Official SDKs available for Python, JavaScript, Swift, Java, .NET, and Objective-C with automatic code generation via Stone spec language. API Explorer enables rapid prototyping.

Rate limits are generous and enforced per-authorization. Webhooks support real-time change notifications. Development apps support up to 500 users before production approval. Ideal for cloud storage integrations, file sync applications, and collaboration tools with robust documentation.