> ## Documentation Index
> Fetch the complete documentation index at: https://socialquery.dev/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Klarna Category Keywords

> Returns native related-search keywords for a tree (t ID) or product category (cl ID), after verifying that category exists. Names and contextual links retain source order; no popularity metric or exhaustive coverage is inferred. Supports the 13 catalog regions. Empty content for a valid category has zero net charge; nonexistent categories return 404.

Returns native related-search keywords for a tree (t ID) or product category (cl ID), after verifying that category exists. Names and contextual links retain source order; no popularity metric or exhaustive coverage is inferred. Supports the 13 catalog regions. Empty content for a valid category has zero net charge; nonexistent categories return 404.

Use `category_id=t1` for TV & Audio or `category_id=cl94` for Headphones. Tree and product categories use different native keyword services. The adapter first verifies the category’s existence; the keyword service by itself can return an empty list for invalid IDs.

Each `items` entry retains `name` and `source_path`. Repeated names with distinct brand or attribute links stay separate. Use a name as `query` on the search endpoint. Keywords include both search landing paths and filtered category paths. UK, Swedish and Danish results set absolute `url` to null because those legacy paths do not establish a verified Klarna page. Other markets expose source-based shopping URLs. `returned_count` counts all keyword rows.

Regions: `usa` (default), `uk`, `germany`, `sweden`, `france`, `italy`, `spain`, `netherlands`, `austria`, `ireland`, `norway`, `finland` and `denmark`. Region changes the native language and available content. These are current public source snapshots, not promises of inventory or completeness.

A successful fresh request with content costs **1 SocialQuery credit**. Empty content for an existing category is fully refunded. Missing categories, invalid parameters, upstream failures, cached responses and successful idempotent replays have no net charge. Use `X-Max-Credits: 1` to cap the hold.

The anonymous source uses the shared 20-request/minute Klarna ceiling, a 25-second total timeout and a 2 MiB limit per response. Category validation may require one additional source request. Invalid source payloads fail explicitly; they are not converted into empty success or silently truncated.


## OpenAPI

````yaml GET /klarna/category/keywords
openapi: 3.1.0
info:
  title: SocialQuery API
  version: '2026-10-09'
  description: >-
    Documented requests for public-source records. Inspect accepted inputs and
    credit amounts, then verify the selected operation before integrating
    preview coverage.
servers:
  - url: https://socialquery.dev/v1
security:
  - apiKey: []
paths:
  /klarna/category/keywords:
    get:
      tags:
        - Klarna
      summary: Klarna Category Keywords
      description: >-
        Returns native related-search keywords for a tree (t ID) or product
        category (cl ID), after verifying that category exists. Names and
        contextual links retain source order; no popularity metric or exhaustive
        coverage is inferred. Supports the 13 catalog regions. Empty content for
        a valid category has zero net charge; nonexistent categories return 404.
      operationId: get_klarna_category_keywords
      parameters:
        - name: category_id
          in: query
          required: true
          example: t1
          schema:
            type: string
            pattern: ^(?:t|cl)[1-9][0-9]{0,9}$
          description: Existing regional tree or product category.
        - name: region
          in: query
          required: false
          schema:
            type: string
            enum:
              - usa
              - uk
              - germany
              - sweden
              - france
              - italy
              - spain
              - netherlands
              - austria
              - ireland
              - norway
              - finland
              - denmark
        - name: Cache-Control
          in: header
          required: false
          example: no-cache
          schema:
            type: string
        - name: Idempotency-Key
          in: header
          required: false
          example: 7a5e1b4c-2d8f-4a3b-9c1e-6e8b4d2a1f3c
          schema:
            type: string
        - name: X-Max-Credits
          in: header
          required: false
          description: >-
            Optional nonnegative integer cap on the maximum request hold. A live
            request whose hold exceeds this cap returns 422
            CREDIT_BUDGET_EXCEEDED before spending. Metered holds use the
            requested limit; cache hits and successful idempotent replays cost
            zero.
          schema:
            type: integer
            minimum: 0
      responses:
        '200':
          description: >-
            Returns native related-search keywords for a tree (t ID) or product
            category (cl ID), after verifying that category exists. Names and
            contextual links retain source order; no popularity metric or
            exhaustive coverage is inferred. Supports the 13 catalog regions.
            Empty content for a valid category has zero net charge; nonexistent
            categories return 404.
          content:
            application/json:
              schema:
                allOf:
                  - $ref: '#/components/schemas/SocialQueryResponse'
                  - type: object
                    properties:
                      data:
                        type: object
                        properties:
                          category_id:
                            type: string
                          region:
                            type: string
                          country_code:
                            type: string
                          source:
                            type: string
                          returned_count:
                            type: integer
                            minimum: 0
                          coverage_note:
                            type: string
                          items:
                            type: array
                            items:
                              type: object
                              properties:
                                name:
                                  type: string
                                source_path:
                                  type: string
                                url:
                                  type:
                                    - string
                                    - 'null'
                              required:
                                - name
                                - source_path
                                - url
                        required:
                          - category_id
                          - region
                          - country_code
                          - source
                          - returned_count
                          - coverage_note
                          - items
        '400':
          $ref: '#/components/responses/Error400'
        '401':
          $ref: '#/components/responses/Error401'
        '402':
          $ref: '#/components/responses/Error402'
        '403':
          $ref: '#/components/responses/Error403'
        '404':
          $ref: '#/components/responses/Error404'
        '405':
          $ref: '#/components/responses/Error405'
        '409':
          $ref: '#/components/responses/Error409'
        '422':
          $ref: '#/components/responses/Error422'
        '429':
          $ref: '#/components/responses/Error429'
        '500':
          $ref: '#/components/responses/Error500'
        '502':
          $ref: '#/components/responses/Error502'
        '503':
          $ref: '#/components/responses/Error503'
        '504':
          $ref: '#/components/responses/Error504'
components:
  schemas:
    SocialQueryResponse:
      type: object
      required:
        - success
        - platform
        - endpoint
        - credits_used
        - credits_remaining
        - request_id
        - cached
        - data
      properties:
        success:
          type: boolean
          const: true
        platform:
          type: string
        endpoint:
          type: string
        credits_used:
          type: integer
          minimum: 0
        credits_remaining:
          type:
            - integer
            - 'null'
        request_id:
          type: string
        cached:
          type: boolean
        data:
          type: object
          additionalProperties: true
          description: >-
            The selected operation determines the resource fields in this
            object. Source data can omit a metric or report it as null.
    SocialQueryError:
      type: object
      required:
        - success
        - platform
        - endpoint
        - credits_used
        - credits_remaining
        - request_id
        - cached
        - error
      properties:
        success:
          type: boolean
          const: false
        platform:
          type: string
        endpoint:
          type: string
        credits_used:
          type: integer
          minimum: 0
        credits_remaining:
          type:
            - integer
            - 'null'
        request_id:
          type: string
        cached:
          type: boolean
        error:
          type: object
          required:
            - code
            - type
            - message
            - status
            - doc_url
          properties:
            code:
              type: string
            type:
              type: string
            message:
              type: string
            status:
              type: integer
            doc_url:
              type: string
              format: uri
  responses:
    Error400:
      description: Upstream rejected the request.
      headers:
        X-Request-Id:
          schema:
            type: string
        X-Credits-Used:
          schema:
            type: integer
        X-Credits-Remaining:
          schema:
            type: string
        X-Cache:
          schema:
            type: string
            enum:
              - HIT
              - MISS
              - BYPASS
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/SocialQueryError'
    Error401:
      description: Missing, expired, invalid, or revoked API key.
      headers:
        X-Request-Id:
          schema:
            type: string
        X-Credits-Used:
          schema:
            type: integer
        X-Credits-Remaining:
          schema:
            type: string
        X-Cache:
          schema:
            type: string
            enum:
              - HIT
              - MISS
              - BYPASS
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/SocialQueryError'
    Error402:
      description: Insufficient SocialQuery credits.
      headers:
        X-Request-Id:
          schema:
            type: string
        X-Credits-Used:
          schema:
            type: integer
        X-Credits-Remaining:
          schema:
            type: string
        X-Cache:
          schema:
            type: string
            enum:
              - HIT
              - MISS
              - BYPASS
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/SocialQueryError'
    Error403:
      description: Key scope or provider policy denied access.
      headers:
        X-Request-Id:
          schema:
            type: string
        X-Credits-Used:
          schema:
            type: integer
        X-Credits-Remaining:
          schema:
            type: string
        X-Cache:
          schema:
            type: string
            enum:
              - HIT
              - MISS
              - BYPASS
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/SocialQueryError'
    Error404:
      description: Endpoint or upstream resource not found.
      headers:
        X-Request-Id:
          schema:
            type: string
        X-Credits-Used:
          schema:
            type: integer
        X-Credits-Remaining:
          schema:
            type: string
        X-Cache:
          schema:
            type: string
            enum:
              - HIT
              - MISS
              - BYPASS
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/SocialQueryError'
    Error405:
      description: HTTP method is not supported.
      headers:
        X-Request-Id:
          schema:
            type: string
        X-Credits-Used:
          schema:
            type: integer
        X-Credits-Remaining:
          schema:
            type: string
        X-Cache:
          schema:
            type: string
            enum:
              - HIT
              - MISS
              - BYPASS
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/SocialQueryError'
    Error409:
      description: Idempotency conflict or request in progress.
      headers:
        X-Request-Id:
          schema:
            type: string
        X-Credits-Used:
          schema:
            type: integer
        X-Credits-Remaining:
          schema:
            type: string
        X-Cache:
          schema:
            type: string
            enum:
              - HIT
              - MISS
              - BYPASS
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/SocialQueryError'
    Error422:
      description: Invalid parameters.
      headers:
        X-Request-Id:
          schema:
            type: string
        X-Credits-Used:
          schema:
            type: integer
        X-Credits-Remaining:
          schema:
            type: string
        X-Cache:
          schema:
            type: string
            enum:
              - HIT
              - MISS
              - BYPASS
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/SocialQueryError'
    Error429:
      description: Request limit reached.
      headers:
        X-Request-Id:
          schema:
            type: string
        X-Credits-Used:
          schema:
            type: integer
        X-Credits-Remaining:
          schema:
            type: string
        X-Cache:
          schema:
            type: string
            enum:
              - HIT
              - MISS
              - BYPASS
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/SocialQueryError'
    Error500:
      description: Request processing failed.
      headers:
        X-Request-Id:
          schema:
            type: string
        X-Credits-Used:
          schema:
            type: integer
        X-Credits-Remaining:
          schema:
            type: string
        X-Cache:
          schema:
            type: string
            enum:
              - HIT
              - MISS
              - BYPASS
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/SocialQueryError'
    Error502:
      description: Upstream service failed.
      headers:
        X-Request-Id:
          schema:
            type: string
        X-Credits-Used:
          schema:
            type: integer
        X-Credits-Remaining:
          schema:
            type: string
        X-Cache:
          schema:
            type: string
            enum:
              - HIT
              - MISS
              - BYPASS
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/SocialQueryError'
    Error503:
      description: Provider or required service is unavailable.
      headers:
        X-Request-Id:
          schema:
            type: string
        X-Credits-Used:
          schema:
            type: integer
        X-Credits-Remaining:
          schema:
            type: string
        X-Cache:
          schema:
            type: string
            enum:
              - HIT
              - MISS
              - BYPASS
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/SocialQueryError'
    Error504:
      description: Upstream service timed out.
      headers:
        X-Request-Id:
          schema:
            type: string
        X-Credits-Used:
          schema:
            type: integer
        X-Credits-Remaining:
          schema:
            type: string
        X-Cache:
          schema:
            type: string
            enum:
              - HIT
              - MISS
              - BYPASS
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/SocialQueryError'
  securitySchemes:
    apiKey:
      type: apiKey
      in: header
      name: x-api-key

````

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