---
title: "Add 1–100 existing templates atomically; repeated additions are harmless"
method: POST
path: "/api/v1/collections/{id}/templates/add"
tags: ["Collections"]
---

# Add 1–100 existing templates atomically; repeated additions are harmless

`POST /api/v1/collections/{id}/templates/add`

## Request

- Base URL: `https://api.korala.ai`
- URL: `https://api.korala.ai/api/v1/collections/{id}/templates/add`
- Auth: one of:
  - API key in header `X-API-Key`
  - `bearer` (a scheme the document does not define)

## Path parameters

- `id` string, required

## Query parameters

- `sandbox` boolean

## Request body

- CollectionTemplatesMutationDto
  - `templateIds` string[], required

## Response `204`

## Other responses

- `400`: Malformed UUID in path parameter (`id`).

---

[API](https://skmtc.dev/korala/apis/korala-public-api.md) · [All operations](https://skmtc.dev/korala/apis/korala-public-api/llms.txt) · [OpenAPI document](https://skmtc.dev/korala/apis/korala-public-api/revisions/5c4d7810c507?raw)