Contentful

Contentful is a web-based content platform with free and paid plans. It supports content localization, custom role permissions, webhooks, content preview, asset transformations, and both listed API types. The Free plan costs nothing, billed at $0 forever, and allows 10 users, 2 roles, 2 locales, 100K API calls per month, 50 GB per month of CDN bandwidth, and 1 Starter Space. Lite costs $300 a month, billed at $300 per month, with 20 users, 3 roles, 3 locales, 1M API calls per month, 100 GB per month of CDN bandwidth, and 1 Starter Space. Contentful was founded in 2013 and is headquartered in Berlin, Germany.

It suits teams managing localized web content, permissions, previews, assets, and API-based workflows. The free tier fits smaller fixed allowances, while Lite and Enterprise target higher or custom requirements.