# Klarna Categories Children API (https://www.socialcrawl.dev/platforms/klarna/categories-children) > Returns one Klarna category and its children. t1 (TV and Audio) returned Headphones as cl94. Unknown category ids return 404 and are not billed. TL;DR: `GET /v1/klarna/categories/children` costs 1 credit per call and returns SocialCrawl's unified JSON schema. Single x-api-key auth, 100 free credits on signup. ## Parameters | Parameter | Required | Description | | --- | --- | --- | | `category_id` | yes | Klarna category id, for example cl94 for Headphones or t1 for TV and Audio. Ids come from GET /v1/klarna/categories and from search rows as category.id. Required for GET /v1/klarna/product when you pass product_id instead of a shopping URL. | | `region` | no | Shopping region: usa (default), uk, germany, sweden, france, italy, spain, netherlands, austria, ireland, norway, finland, denmark. Changes currency, language, and the merchant set. (usa \| uk \| germany \| sweden \| france \| italy \| spain \| netherlands \| austria \| ireland \| norway \| finland \| denmark) | ## Code example ```bash curl -G "https://www.socialcrawl.dev/v1/klarna/categories/children" \ --data-urlencode "category_id=t1" \ -H "x-api-key: sc_YOUR_API_KEY" ``` ## FAQ ### What does the Klarna Categories Children API return? Returns one Klarna category and its children. The response uses the same JSON envelope as every SocialCrawl endpoint, with the data, credits_used and request_id fields. ### When should I use the Klarna Categories Children endpoint? Use it when you have a category id and need the next level before walking products. ### How much does the Klarna Categories Children API cost? Each call costs 1 credit, so the 100 free credits every new account gets cover 100 calls. Credits for failed or empty calls are refunded automatically, and there is no subscription. ### What parameters does the Klarna Categories Children API need? The one required parameter is category_id (klarna category id, for example cl94 for Headphones or t1 for TV and Audio). It also accepts 1 optional parameter, listed on this page. The optional parameter to try first is region (Results for one market). ### How do I call the Klarna Categories Children API? Send a GET request to https://www.socialcrawl.dev/v1/klarna/categories/children?category_id=t1 with your API key in the x-api-key header. An Authorization: Bearer header works too. See the full Klarna API: https://www.socialcrawl.dev/platforms/klarna ## Pricing - Standard endpoints: 1 credit per call - Advanced endpoints: 5 credits per call - Premium endpoints: 10 credits per call - 100 free credits on signup, no credit card required. Cached responses cost 0 credits. Credit packs never expire. - Full pricing: https://www.socialcrawl.dev/pricing ## Explore with AI Questions this API answers, phrased for an AI assistant: - What does the SocialCrawl Klarna Categories Children API return? - How do I get Klarna Categories Children data with the SocialCrawl API?