Top 5 Cloud & Productivity APIs
Ranked by popularity score. A comparison view generated from structured frontmatter (pricing, auth, docs links).
| Rank | API | Free tier | Starting from | Auth | Details |
|---|---|---|---|---|---|
1 | Google Sheets API Read, write, and format Google Sheets programmatically. Build integrations, automate workflows, and use spreadsheets as a simple database. | Yes | Free | oauth2 | View |
2 | Google Drive API Access, upload, download, and manage files in Google Drive. Build cloud storage integrations and automate file workflows. | Yes | Free | oauth2 | View |
3 | Google Calendar API Create, read, update, and delete calendar events. Build scheduling applications and integrate calendar functionality into your products. | Yes | Free | oauth2 | View |
4 | Zapier API Integrate 7,000+ apps and automate workflows with Zapier's platform API. Build custom integrations, trigger Zaps programmatically, and manage automation workflows. | Yes | Free (100 tasks/mo) | oauth2 | View |
5 | Dropbox API Access Dropbox cloud storage to upload, download, share files, and sync data across devices. Build file management and collaboration applications. | Yes | Free (2GB storage) | oauth2 | View |