# StepFun Realtime API

**Canonical:** https://apis.io/apis/stepfun/realtime-api/  
**Provider:** StepFun — https://apis.io/providers/stepfun/  
**Base URL:** https://api.stepfun.com  
**Documentation:** https://platform.stepfun.com/docs/zh/api-reference/realtime/chat

StepFun Realtime API is one of 12 APIs that [StepFun](https://apis.io/providers/stepfun/) publishes on the [APIs.io](https://apis.io/) network, described by an AsyncAPI event-driven specification. Tagged areas include Audio, Real-Time, WebSocket, and Voice. The published artifact set on APIs.io includes API documentation and an AsyncAPI specification.

Bidirectional realtime voice over WebSocket (wss://api.stepfun.com/v1/realtime) with OpenAI Realtime-style session, conversation, and response events, plus a streaming TTS channel at /v1/realtime/audio.

## Machine-readable artifacts (2)

- **Documentation** — https://platform.stepfun.com/docs/zh/api-reference/realtime/chat
- **AsyncAPI** — https://raw.githubusercontent.com/api-evangelist/stepfun/refs/heads/main/asyncapi/stepfun-realtime-asyncapi.yml

## Other StepFun APIs (11)

- [StepFun Chat Completions API](https://apis.io/apis/stepfun/chat-completions-api/)
- [StepFun Messages API](https://apis.io/apis/stepfun/messages-api/)
- [StepFun Responses API](https://apis.io/apis/stepfun/responses-api/)
- [StepFun Models API](https://apis.io/apis/stepfun/models-api/)
- [StepFun Audio API](https://apis.io/apis/stepfun/audio-api/)
- [StepFun Images API](https://apis.io/apis/stepfun/images-api/)
- [StepFun Files API](https://apis.io/apis/stepfun/files-api/)
- [StepFun Vector Stores API](https://apis.io/apis/stepfun/vector-stores-api/)
- [StepFun Web Search API](https://apis.io/apis/stepfun/web-search-api/)
- [StepFun Token Count API](https://apis.io/apis/stepfun/token-count-api/)
- [StepFun Accounts API](https://apis.io/apis/stepfun/accounts-api/)

## Tags

Audio, Real-Time, WebSocket, Voice

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