---
title: "Get Message Sessions"
method: GET
path: "/api/v1/monitor/messages/sessions"
tags: ["Monitor"]
---

# Get Message Sessions

`GET /api/v1/monitor/messages/sessions`

## Query parameters

- `flow_id` string, uuid, nullable

## Response `200`

Successful Response

- string[]

## Other responses

- `422` — Validation Error

## Changes

- **2026-03-12** `830c31118215` — 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
- **2026-03-06** `0be341779529` — 2 info
  - the endpoint scheme security `OAuth2PasswordBearerCookie` was added to the API
  - the endpoint scheme security `OAuth2PasswordBearer` was removed from the API
- **2026-02-18** `191b57fc530b` — 2 info
  - the endpoint scheme security `OAuth2PasswordBearer` was added to the API
  - the endpoint scheme security `OAuth2PasswordBearerCookie` was removed from the API
- **2026-02-10** `0be341779529` — 2 info
  - the endpoint scheme security `OAuth2PasswordBearerCookie` was added to the API
  - the endpoint scheme security `OAuth2PasswordBearer` was removed from the API
- **2025-10-16** `9bd3e81318d7` — 2 warning, 2 info
  - removed the optional property `detail/items/ctx` from the response with the `422` status
  - removed the optional property `detail/items/input` from the response with the `422` status
  - the endpoint scheme security `OAuth2PasswordBearer` was added to the API
  - the endpoint scheme security `OAuth2PasswordBearerCookie` was removed from the API

[Change history](https://skmtc.dev/langflow-ai/apis/langflow/changes/api/v1/monitor/messages/sessions/get.md)

---

[API](https://skmtc.dev/langflow-ai/apis/langflow.md) · [All operations](https://skmtc.dev/langflow-ai/apis/langflow/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/langflow-ai/langflow/revisions/22962dc5e81b/schema)