Stream provides realtime APIs for chat messaging, video and audio (calls/rooms), activity feeds and AI moderation. Hosted on a global edge network with native SDKs for web, mobile (iOS, Android, Flutter, React Native) and game engines (Unity, Unreal). Stream publishes full OpenAPI specs for its server-side APIs.
APIs.json: apis.yml
- x-type: company
- Chat —
https://chat.stream-io-api.com— channels, messages, users, threads, reactions, push, search, import/export. Docs · OpenAPI - Video & Audio —
https://video.stream-io-api.com— calls, audio rooms, livestreams, recordings, transcriptions. Docs · OpenAPI - Moderation — AI moderation across text/image/video, queues, automod policies, harms taxonomy. OpenAPI
- Activity Feeds — flat / aggregated / notification / ranked feeds, follow graph, reactions, personalisation. Docs
Stored under openapi/:
stream-io-chat-openapi.yml(server-side Chat)stream-io-video-openapi.yml(server-side Video & Audio)stream-io-moderation-openapi.yml(server-side Moderation)stream-io-serverside-openapi.yml(combined server-side surface)
Source: https://github.com/GetStream/protocol/tree/main/openapi.
Realtime, Chat, Messaging, Video, Audio, Activity Feeds, Moderation, SDK
- Website
- Documentation
- Pricing
- GitHub
- Protocol Portal
- Status Page
- Plans — reconciled (Chat tiers exact; Video/Feeds/Moderation directional)
- Rate Limits — partially reconciled (headers + 429 contract; numeric ceilings undocumented)
- FinOps — reconciled, FOCUS-aligned
- Build (Free) — 1,000 MAU, 100 concurrent connections.
- Start — 10K MAU $399/mo annual; 25K $1,049/mo; 50K $1,849/mo (annual). Overage $0.07–0.09 / MAU.
- Elevate — adds multi-tenancy, advanced search, HIPAA, translations. 10K MAU $599/mo annual.
- Enterprise — 1M+ MAU, 99.999% SLA, dedicated, 24/7 support, SAML/SSO.
- Add-ons — stored messages $5/M, API calls $7/M, CDN bandwidth $0.17/GB, CDN storage $0.07/GB.
- Created: 2026-05-08
- Modified: 2026-05-08
- Kin Lane — kin@apievangelist.com