---
title: "Add Group Instance"
method: POST
path: "/claims/{claim_id}/groups/{group_code}/instances"
tags: ["claims"]
---

# Add Group Instance

`POST /claims/{claim_id}/groups/{group_code}/instances`

## Request

- Base URL: `https://api.claimkit.co` (the document declares no server; this is the origin it was published from)
- URL: `https://api.claimkit.co/claims/{claim_id}/groups/{group_code}/instances`
- Auth: none declared

Add a new instance of a repeating group.

Returns the new instance_id. For nested groups, provide parent_instance_id.
Project/activity groups also create the matching Tracking row when Review
and Tracking use the same discovery methodology.

## Path parameters

- `claim_id` integer, required
- `group_code` string, required

## Request body

- AddInstanceRequest
  - `parent_instance_id` integer, nullable

## Response `201`

Successful Response

- AddInstanceResponse
  - `instance_id` integer, required
  - `group_code` string, required
  - `parent_instance_id` integer, nullable

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/claimkit/apis/claimkit-api.md) - [All operations](https://skmtc.dev/claimkit/apis/claimkit-api/llms.txt) - [OpenAPI document](https://skmtc.dev/claimkit/apis/claimkit-api/revisions/94dc85ba5326?raw)