---
title: "Get Session Turn Progress"
method: GET
path: "/v1/store/chat-sessions/{chat_session_id}/turn-progress"
tags: ["store"]
---

# Get Session Turn Progress

`GET /v1/store/chat-sessions/{chat_session_id}/turn-progress`

## Request

- Base URL: `https://api.quadrillion.io` (the document declares no server; this is the origin it was published from)
- URL: `https://api.quadrillion.io/v1/store/chat-sessions/{chat_session_id}/turn-progress`
- Auth: none declared
- TypeScript: <https://skmtc.dev/quadrillion/apis/quadrillion-cloud-api/docs/v1/store/chat-sessions/:chat_session_id/turn-progress/get.ts> (a function with typed inputs; its response is checked against the schema)

Fresh turn-progress counters; send-now revalidates turn identity here,
so they must not come from the cached ``get_chat_session`` read.

## Path parameters

- `chat_session_id` string, required

## Response `200`

Successful Response

- unknown

## Other responses

- `422`: Validation Error

## Changes

- **2026-09-18** `abf76937a751`: 2 info
  - 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
- **2026-09-15** `21910d3ae5d8`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/quadrillion/apis/quadrillion-cloud-api/changes/v1/store/chat-sessions/:chat_session_id/turn-progress/get.md)

---

[API](https://skmtc.dev/quadrillion/apis/quadrillion-cloud-api.md) - [All operations](https://skmtc.dev/quadrillion/apis/quadrillion-cloud-api/llms.txt) - [OpenAPI document](https://skmtc.dev/quadrillion/apis/quadrillion-cloud-api/revisions/2e1425e0e054?raw)