---
title: "Create call"
method: POST
path: "/realtime/calls"
tags: ["Realtime"]
---

# Create call

`POST /realtime/calls`

Create a new Realtime API call over WebRTC and receive the SDP answer needed
to complete the peer connection.

## Response `201`

Realtime call created successfully.

## Changes

- **2026-07-28** `c7549184dd95` — 4 info
  - added the new optional request property `session/allOf[subschema #1: Realtime session configuration]/audio/input/transcription/keywords`
  - added the new optional request property `session/allOf[subschema #1: Realtime session configuration]/audio/input/transcription/languages`
  - added the new `gpt-live-transcribe` enum value to the request property `session/allOf[subschema #1: Realtime session configuration]/audio/input/transcription/model/anyOf[subschema #2]/`
  - added the new `gpt-transcribe` enum value to the request property `session/allOf[subschema #1: Realtime session configuration]/audio/input/transcription/model/anyOf[subschema #2]/`
- …earlier changes not shown

[Full history](https://skmtc.dev/openai/apis/openai-api/changes/realtime/calls/post.md)

---

[API](https://skmtc.dev/openai/apis/openai-api.md) · [All operations](https://skmtc.dev/openai/apis/openai-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/openai/openai-api/revisions/dcd35773a322/schema)