---
title: "Check if concepts or collections exist in a scheme."
method: HEAD
path: "/conceptschemes/{scheme_id}/c"
tags: ["Pyramid_skosprovider"]
---

# Check if concepts or collections exist in a scheme.

`HEAD /conceptschemes/{scheme_id}/c`

## Path parameters

- `scheme_id` string, required

## Query parameters

- `type` string
- `mode` string
- `label` string
- `collection` string
- `sort` string
- `language` string

## Response `200`

The concepts in this conceptscheme were found.

## Other responses

- `404` — 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)