---
title: "Changes to Create call"
method: POST
path: "/realtime/calls"
---

# Changes to Create call

`POST /realtime/calls`

> Every recorded change to this endpoint, newest first.

## Timeline

Changed in 3 of 164 revisions.

- **2026-09-16** `2cd8933757a4` — 1 info
- **2026-08-05** `ab0c5306e390` — 12 info
- **2026-05-13** `74cbcf73838f` — 1 info

## Changes

- **2026-09-16** `2cd8933757a4` — 1 info
  - request property `session/allOf[subschema #1: Realtime session configuration]/tools/items/oneOf[subschema #2: MCP tool]/connector_id` deprecated
- **2026-08-05** `ab0c5306e390` — 12 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 optional request property `session/allOf[subschema #1: Realtime session configuration]/prompt/anyOf[subschema #1]/variables/anyOf[subschema #1: Prompt Variables]/additionalProperties/oneOf[subschema #2: Input text]/prompt_cache_breakpoint`
  - added the new optional request property `session/allOf[subschema #1: Realtime session configuration]/prompt/anyOf[subschema #1]/variables/anyOf[subschema #1: Prompt Variables]/additionalProperties/oneOf[subschema #3: Input image]/prompt_cache_breakpoint`
  - added the new optional request property `session/allOf[subschema #1: Realtime session configuration]/prompt/anyOf[subschema #1]/variables/anyOf[subschema #1: Prompt Variables]/additionalProperties/oneOf[subschema #4: Input file]/prompt_cache_breakpoint`
  - added the new optional request property `session/allOf[subschema #1: Realtime session configuration]/tools/items/oneOf[subschema #2: MCP tool]/allowed_callers`
  - added the new optional request property `session/allOf[subschema #1: Realtime session configuration]/tools/items/oneOf[subschema #2: MCP tool]/tunnel_id`
  - added the new `auto` enum value to the request property `session/allOf[subschema #1: Realtime session configuration]/prompt/anyOf[subschema #1]/variables/anyOf[subschema #1: Prompt Variables]/additionalProperties/oneOf[subschema #4: Input file]/detail`
  - 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-realtime-2.1` enum value to the request property `session/allOf[subschema #1: Realtime session configuration]/model/anyOf[subschema #2]/`
  - added the new `gpt-realtime-2.1-mini` enum value to the request property `session/allOf[subschema #1: Realtime session configuration]/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]/`
- **2026-05-13** `74cbcf73838f` — 1 info
  - endpoint added

---

[Operation](https://skmtc.dev/openai/apis/openapi/docs/realtime/calls/post.md) · [API](https://skmtc.dev/openai/apis/openapi.md) · [Page](https://skmtc.dev/openai/apis/openapi/changes/realtime/calls/post)