---
title: "Create Session"
method: POST
path: "/session/"
tags: ["sessions"]
---

# Create Session

`POST /session/`

Create a new session.

## Request body

- SessionCreate
  - `workflow_id` string, required
  - `user_id` string, required
  - `external_id` string, nullable

## Response `200`

Successful Response

- SessionResponse
  - `workflow_id` string, required
  - `id` string, required
  - `user_id` string, required
  - `created_at` string, date-time, required
  - `updated_at` string, date-time, required
  - `messages` MessageResponse[], required
    - `content` object, required
    - `id` string, required
    - `session_id` string, required
    - `run_id` string, nullable, required
    - `created_at` string, date-time, required
    - `updated_at` string, date-time, required

## Other responses

- `422` — Validation Error

## Changes

- **2025-03-12** `181efcea9e6e` — 1 info
  - endpoint added
- **2024-11-23** `a2d864f3a8db` — 1 breaking
  - api path removed without deprecation

[Change history](https://skmtc.dev/pyspur-dev/apis/pyspur-api/changes/session/post.md)

---

[API](https://skmtc.dev/pyspur-dev/apis/pyspur-api.md) · [All operations](https://skmtc.dev/pyspur-dev/apis/pyspur-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/pyspur-dev/pyspur-api/revisions/adc77484c851/schema)