What you get#
Onekey exposes Hm as 6 endpoints behind one API key: 6 endpoints return a list (data is an array). Every answer uses the same envelope (success, data, metadata, error), the cost is reported in metadata.credits_charged, and fields are mapped onto the unified schema so the code you write for Hm also works for the rest of the e-commerce & marketplaces category.
Endpoints#
| Endpoint | What it does | Parameters | Credits | Status |
|---|---|---|---|---|
categories | The H&M category tree. | - | 2 | beta needs a pack |
countries | H&M countries and languages. | - | 2 | beta needs a pack |
product_suppliers | Suppliers and factories of an H&M product. | product_id, url | 2 | beta needs a pack |
search | Search H&M products by keyword. | query*, cursor | 2 | beta needs a pack |
search_suggestions | Search suggestions for H&M. | query* | 2 | beta needs a pack |
stores | H&M stores in a country (country dump, not near-me). | country* | 2 | beta needs a pack |
A * marks a required parameter. Each endpoint name links to its reference page with the full parameter table, caching window and a recorded response.
Make a request#
This calls hm.categories (2 credits, beta). Replace YOUR_API_KEY with your key; sign up, no card. 1,000 free credits cover the open-platform endpoints. Hard-to-reach platforms (X, TikTok, Instagram, Reddit, and others marked on their page) need a verified email and a purchased pack.
curl "https://api.onekey.dev/v1/hm/categories" \
-H "x-api-key: YOUR_API_KEY"Fields you get back#
These unified fields come back from Hm, with the same names as on every other platform. The count is how many of its 6 mapped endpoints return the field; a field the source lacks is null, never missing. 1 platform-specific field (ext.<name>) come on top, documented on each endpoint page.
| Field | Type | Endpoints |
|---|---|---|
entity.name | string | 6 |
entity.id | string | 5 |
entity.url | URL | 2 |
place.address | string | 2 |
entity.country | string | 1 |
entity.description | string | 1 |
entity.language | string | 1 |
entity.slug | string | 1 |
entity.stats.rating | number | 1 |
entity.stats.ratingCount | integer | 1 |
entity.type | string | 1 |
listing.brand | string | 1 |
listing.currency | string | 1 |
listing.price | number | 1 |
media.thumbnailUrl | URL | 1 |
place.city | string | 1 |
place.lat | number | 1 |
place.lon | number | 1 |
The full schema is in Unified schema.
Pricing#
Every Hm endpoint costs 2 credits per call. Free when served from cache (0.2 credit for a cached response over 100 KB). Invalid, failed or not-found calls are not charged. See pricing for credit packs.