---
title: "Update a concept's metadata"
method: PATCH
path: "/api/concepts/{id}"
tags: ["concepts"]
---

# Update a concept's metadata

`PATCH /api/concepts/{id}`

Update concept metadata such as description, similarity threshold, and custom score.

### Parameter Guidelines:
- **similarity_threshold**: Cosine distance threshold (range 0.0 to 1.0) determining how closely an article's embedding must align with the concept's anchor embedding to be classified under it.

## Path parameters

- `id` integer, required

## Request body

- object
  - `concept` object
    - `score` number
    - `description` string
    - `similarity_threshold` number

## Response `200`

successful

- Concept — Representation of a concept
  - `id` integer, required
  - `name` string, required
  - `slug` string, required
  - `description` string, nullable
  - `parent_id` integer, nullable
  - `score` number, float
  - `similarity_threshold` number, float, nullable
  - `created_at` string, date-time, required
  - `updated_at` string, date-time, required
  - `daily_metrics` ConceptDailyMetric[]
    - `date` string, date, required
    - `articles_count` integer, required
    - `comments_count` integer, required
    - `page_views` integer, required
    - `reactions_count` integer, required
    - `popularity_score` number, float, required
  - `top_articles` object[]
    - `id` integer
    - `title` string
    - `slug` string
    - `score` number, float
    - `published_at` string, date-time

---

[API](https://skmtc.net/forem/apis/forem-api-v1.md) · [All operations](https://skmtc.net/forem/apis/forem-api-v1/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/forem/forem-api-v1/versions/bcdd2cdd127c/schema)