---
title: "Changes to Query Threads"
method: POST
path: "/v2/threads/query"
---

# Changes to Query Threads

`POST /v2/threads/query`

> Every recorded change to this endpoint, newest first.

## Timeline

Changed in 2 of 48 revisions.

- **2026-05-27** `a0acb3a6a101` — 1 warning, 29 info
- **2026-04-30** `99490d1e837e` — 2 breaking, 2 warning, 5 info

## Changes

- **2026-05-27** `a0acb3a6a101` — 1 warning, 29 info
  - removed the optional property `has_more` from the response with the `200` status
  - the endpoint scheme security `API Key AND Tenant ID` was added to the API
  - the endpoint scheme security `Bearer Auth AND Tenant ID` was added to the API
  - the endpoint scheme security `API Key` was removed from the API
  - the endpoint scheme security `Bearer Auth` was removed from the API
  - the endpoint scheme security `Tenant ID` was removed from the API
  - added the non-success response with the status `401`
  - added the non-success response with the status `404`
  - added the non-success response with the status `500`
  - added the non-success response with the status `503`
  - added the non-success response with the status `504`
  - added the optional property `detail` to the response with the `400` status
  - added the optional property `detail` to the response with the `403` status
  - added the optional property `detail` to the response with the `422` status
  - added the optional property `instance` to the response with the `400` status
  - added the optional property `instance` to the response with the `403` status
  - added the optional property `instance` to the response with the `422` status
  - added the optional property `items/items/num_errored_turns` to the response with the `200` status
  - added the optional property `remedy` to the response with the `400` status
  - added the optional property `remedy` to the response with the `403` status
  - added the optional property `remedy` to the response with the `422` status
  - added the optional property `status` to the response with the `400` status
  - added the optional property `status` to the response with the `403` status
  - added the optional property `status` to the response with the `422` status
  - added the optional property `title` to the response with the `400` status
  - added the optional property `title` to the response with the `403` status
  - added the optional property `title` to the response with the `422` status
  - added the optional property `type` to the response with the `400` status
  - added the optional property `type` to the response with the `403` status
  - added the optional property `type` to the response with the `422` status
- **2026-04-30** `99490d1e837e` — 2 breaking, 2 warning, 5 info
  - the `max_start_time` request property type/format changed from `string`/`` to `string`/`date-time`
  - the `min_start_time` request property type/format changed from `string`/`` to `string`/`date-time`
  - removed the request property `limit`
  - removed the request property `session_id`
  - added the new optional request property `page_size`
  - added the new optional request property `project_id`
  - added the optional property `has_more` to the response with the `200` status
  - added the optional property `items` to the response with the `200` status
  - added the optional property `next_cursor` to the response with the `200` status

---

[Operation](https://skmtc.dev/langchain-ai/apis/langsmith/docs/v2/threads/query/post.md) · [API](https://skmtc.dev/langchain-ai/apis/langsmith.md) · [Page](https://skmtc.dev/langchain-ai/apis/langsmith/changes/v2/threads/query/post)