---
title: "Create Instance"
method: POST
path: "/api/learning-plans/instances"
tags: ["learning-plans"]
---

# Create Instance

`POST /api/learning-plans/instances`

## Headers

- `x-user-id` string, nullable

## Request body

- StartInstanceRequest
  - `plan_key` string, required

## Response `200`

Successful Response

- LearningPlanInstance
  - `instance_id` string, required
  - `user_id` string, required
  - `plan_key` string, required
  - `started_at` string, required
  - `completed_segments` string[]

## Other responses

- `422` — Validation Error

---

[API](https://skmtc.net/usecreed/apis/creed-api.md) · [All operations](https://skmtc.net/usecreed/apis/creed-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/usecreed/creed-api/versions/523833f9e819/schema)