# Castr Sub-Second Streams API

**Canonical:** https://apis.io/apis/castr-live/castr-live-sub-second-streams-api/  
**Provider:** Castr — https://apis.io/providers/castr-live/  
**Base URL:** https://api.castr.com/v2  
**Documentation:** https://developers.castr.com/reference/get_v2-live-streams

Castr Sub-Second Streams API is one of 5 APIs that [Castr](https://apis.io/providers/castr-live/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include Sub-Second Streams. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and an API reference.

Ultra-low-latency (WebRTC) live streams.

## Machine-readable artifacts (8)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/castr-live/refs/heads/main/openapi/castr-live-sub-second-streams-api-openapi.yml
- **Documentation** — https://developers.castr.com/docs/getting-started
- **APIReference** — https://developers.castr.com/reference/get_v2-live-streams
- **PostmanCollection** — https://raw.githubusercontent.com/api-evangelist/castr-live/refs/heads/main/collections/castr-live.postman_collection.json
- **OpenCollection** — https://raw.githubusercontent.com/api-evangelist/castr-live/refs/heads/main/collections/castr-live.opencollection.json
- **Documentation** — https://developers.castr.com/docs/create-sub-second-streams
- **Documentation** — https://developers.castr.com/docs/post-a-video
- **Documentation** — https://developers.castr.com/docs/create-a-livestream-pu

## Other Castr APIs (4)

- [Castr Analytics API](https://apis.io/apis/castr-live/castr-live-analytics-api/)
- [Castr Live Streams API](https://apis.io/apis/castr-live/castr-live-live-streams-api/)
- [Castr Video Hosting API](https://apis.io/apis/castr-live/castr-live-video-hosting-api/)
- [Castr Webhooks API](https://apis.io/apis/castr-live/castr-live-webhooks-api/)

## Tags

Sub-Second Streams

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/castr-live/castr-live-sub-second-streams-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/castr-live/.