---
title: "Check if a concept or collection can be expanded."
method: HEAD
path: "/conceptschemes/{scheme_id}/c/{c_id}/expand"
tags: ["Pyramid_skosprovider"]
---

# Check if a concept or collection can be expanded.

`HEAD /conceptschemes/{scheme_id}/c/{c_id}/expand`

## Path parameters

- `scheme_id` string, required
- `c_id` string, required

## Response `200`

The concept/collection was found in the conceptscheme.

## Other responses

- `404` — The concept/collection was not found in the conceptscheme or the conceptscheme was not found.

---

[API](https://skmtc.net/onroerenderfgoed/apis/atramhasis-api.md) · [All operations](https://skmtc.net/onroerenderfgoed/apis/atramhasis-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/onroerenderfgoed/atramhasis-api/revisions/c2d0b54078a2/schema)