---
title: "Api Testsets Create 2"
method: POST
path: "/api/testsets/{id}/"
tags: ["experiments"]
---

# Api Testsets Create 2

`POST /api/testsets/{id}/`

Default POST handler with automatic organization injection.

For CREATE operations:
- Superadmins can specify organization_id in request body (API key only)
- Regular users always use their own organization

Override this method for:
- POST-for-filtering pattern (delegate to self.get())
- Custom pre-create validation

Note: ``inject_target_organization`` is a DEPRECATED ``request.data``-mutating
shim kept for backward-compat during the DEV-9410 migration. The blessed
path stamps org via ``get_create_save_kwargs`` → ``perform_create`` → a
``read_only`` serializer field. The shim (and these overrides' reliance on
it) is removed in C18 (DEV-9430) once every view's org field is read_only.

## Path parameters

- `id` string, required

## Headers

- `Authorization` string, required

## Request body

- TestsetSheetRequest
  - `testset_unique_id` string
  - `created_at` string, date-time
  - `name` string, required
  - `description` string
  - `updated_at` string, date-time
  - `row_count` integer
  - `column_count` integer
  - `max_insertions_before_rebalance` integer
  - `used_row_indexes` number[]
  - `current_max_row_index` number, double
  - `column_definitions` unknown[]
    - unknown
  - `starred` boolean
  - `tags` string[]

## Response `200`

- TestsetSheet
  - `testset_unique_id` string
  - `project` string, nullable, required
  - `created_at` string, date-time
  - `name` string, required
  - `description` string
  - `updated_at` string, date-time
  - `row_count` integer
  - `column_count` integer
  - `max_insertions_before_rebalance` integer
  - `used_row_indexes` number[]
  - `current_max_row_index` number, double
  - `column_definitions` unknown[]
    - unknown
  - `starred` boolean
  - `created_by` integer, nullable, required
  - `organization` integer, required
  - `updated_by` integer, nullable, required
  - `tags` string[]

---

[API](https://skmtc.net/keywordsai/apis/api-reference.md) · [All operations](https://skmtc.net/keywordsai/apis/api-reference/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/keywordsai/api-reference/versions/c26d550029f8/schema)