Pricing
Not listed
Official monthly price not confirmed
- API
- Documentation and API overlays are listed among Line 21 caption delivery features.
Line 21 pricing
● Identity checkedVideo · Vendor site 2026-10-04
Line 21 is a UK-based live captioning platform for streaming, in-venue, and broadcast events with human captioners, ASR, AI proofreading, translations, and multi-destination output. It integrates with YouTube, Twitch, Teams, Zoom, RTMP, and HLS workflows for 100+ languages.
- Category
- Video
- Free access
- Not confirmed
- API access
- Documentation and API overlays are listed among Line 21 caption delivery features.
Understand the total cost
Line 21 pricing & plans
Price history
No retained pricing changes yet. A current price alone does not establish a historical trend.
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