---
title: "Look up concepts by label"
method: GET
path: "/{vocid}/lookup"
tags: ["Vocabulary-specific methods"]
---

# Look up concepts by label

`GET /{vocid}/lookup`

Returns the best matching concept(s) for the given label in JSON-LD format. In case the label matches several concepts with the same precedence, all of them are returned.

## Path parameters

- `vocid` string, required

## Query parameters

- `label` string, required
- `lang` string

## Response `200`

type information about the requested vocabulary

## Other responses

- `404` — no concept could be found with the requested label

## Changes

- **2016-05-20** `b2ef56dee726` — 1 breaking
  - the `query` request parameter `label` became required
- **2016-05-12** `f8c6990627f2` — 1 info
  - api tag `Vocabulary-specific methods` added
- **2016-05-12** `edc7f0ce1476` — 2 info
  - api tag `Vocabulary-specific methods` removed
  - the `query` request parameter `label` became optional

[Change history](https://skmtc.dev/natlibfi/apis/skosmos-api/changes/:vocid/lookup/get.md)

---

[API](https://skmtc.dev/natlibfi/apis/skosmos-api.md) · [All operations](https://skmtc.dev/natlibfi/apis/skosmos-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/natlibfi/skosmos-api/revisions/1ad5811c7a3e/schema)