---
title: "Changes to Call Start Batch"
method: POST
path: "/call/upsert_batch"
---

# Changes to Call Start Batch

`POST /call/upsert_batch`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 2 of 31 revisions.

- **2026-10-16** `dd89fadfe4e4`: 8 info
- **2025-11-05** `f4a10b6a2e6d`: 2 info

## Changes

- **2026-10-16** `dd89fadfe4e4`: 8 info
  - the endpoint scheme security `HTTPBasic` was removed from the API
  - added the new optional request property `batch/items/anyOf[subschema #2: CallBatchEndMode]/req/end/is_eval`
  - added the new optional request property `batch/items/anyOf[subschema #2: CallBatchEndMode]/req/end/started_at`
  - added the new optional request property `batch/items/anyOf[subschema #2: CallBatchEndMode]/req/end/summary/usage/additionalProperties/cache_creation_input_tokens`
  - added the new optional request property `batch/items/anyOf[subschema #2: CallBatchEndMode]/req/end/summary/usage/additionalProperties/cache_read_input_tokens`
  - added the new optional request property `batch/items/anyOf[subschema #2: CallBatchEndMode]/req/end/trace_id`
  - added the optional property `detail/items/ctx` to the response with the `422` status
  - added the optional property `detail/items/input` to the response with the `422` status
- **2025-11-05** `f4a10b6a2e6d`: 2 info
  - added the new optional request property `batch/items/anyOf[subschema #1: CallBatchStartMode]/req/start/otel_dump`
  - added the new optional request property `batch/items/anyOf[subschema #2: CallBatchEndMode]/req/end/wb_run_step_end`

---

[Operation](https://skmtc.dev/wandb/apis/fastapi/docs/call/upsert_batch/post.md) - [API](https://skmtc.dev/wandb/apis/fastapi.md) - [Page](https://skmtc.dev/wandb/apis/fastapi/changes/call/upsert_batch/post)