---
title: "list certificates for a product query"
method: GET
path: "/products/certificates"
tags: ["Certificates"]
---

# list certificates for a product query

`GET /products/certificates`

## Query parameters

- `page` integer
- `per_page` integer
- `q` string
- `usage_id` integer
- `usage_ids[]` string[]
- `category_id` integer
- `brand_id` integer
- `brand_ids[]` integer[]
- `retailer_id` integer
- `retailer_ids[]` integer[]
- `health_group_id` integer
- `health_group_present` true
- `certificate_id` integer
- `certificate_ids[]` integer[]
- `scored` true
- `personal_health_scored` boolean
- `score` integer
- `nutriscore` 'A' | 'B' | 'C' | 'D' | 'E'
- `nutriscores[]` string[]
- `personal_health_score` 'A' | 'B1' | 'B2' | 'C1' | 'C2'
- `personal_health_scores[]` string[]
- `ids` string
- `image` boolean
- `certificates[q]` string

## Response `200`

success

- object
  - `certificates` Certificate[]
    - `id` integer
    - `name` string
    - `description` string
    - `image_url` object
      - `thumb` string — url of image thumbnail
    - `themes` string[] — any of 'environment', 'social' and 'animals'
    - `top` boolean — true if the certificate is among selected top certificates, read more about top certificates at https://keurmerken.milieucentraal.nl/wat-zijn-topkeurmerken/.
  - `total` integer — total number of items

---

[API](https://skmtc.net/thequestionmark/apis/questionmark-api-v1-2.md) · [All operations](https://skmtc.net/thequestionmark/apis/questionmark-api-v1-2/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/thequestionmark/questionmark-api-v1-2/versions/936ff09e6fa1/schema)