---
title: "Create Realtime Transcription Session"
method: POST
path: "/openai/v1/realtime/transcription_sessions"
tags: ["realtime"]
---

# Create Realtime Transcription Session

`POST /openai/v1/realtime/transcription_sessions`

Create an ephemeral Realtime transcription session
(POST /v1/realtime/transcription_sessions) for the WebRTC/WebSocket flow.

Mirrors the client_secrets route but targets the transcription_sessions
endpoint and encrypts the ephemeral key returned under `client_secret.value`.

## Response `200`

Successful Response

- RealtimeTranscriptionSessionResponse — Response from POST /v1/realtime/transcription_sessions. `client_secret.value` contains the encrypted token instead of the raw ephemeral key. Unknown fields pass through unchanged.
  - `client_secret` object, nullable

## Changes

- **2026-09-18** `082b5fabd909` — 1 info
  - endpoint added

[Change history](https://skmtc.dev/flock/apis/litellm-api/changes/openai/v1/realtime/transcription_sessions/post.md)

---

[API](https://skmtc.dev/flock/apis/litellm-api.md) · [All operations](https://skmtc.dev/flock/apis/litellm-api/llms.txt) · [OpenAPI document](https://skmtc.dev/flock/apis/litellm-api/revisions/3b2b241e4b0b?raw)