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

# Languages

Returns the list of supported languages and their ISO language codes. The `LanguageID` is used as the `Language_ID` parameter on the [Qualification Library](https://docs.repdata.com/supply/endpoints/get-v2-qualifications) endpoint.


## OpenAPI

````yaml GET /v2/languages
openapi: 3.0.3
info:
  title: Research Desk Supply API
  version: 1.0.0
  description: >-
    Rep Data's sample platform, Research Desk, lets sample suppliers integrate
    via API for programmatic sample order placement and fulfillment.


    The Supply API is a RESTful service that returns JSON. Suppliers retrieve
    available survey opportunities (Surveys and Streams), read the
    qualifications and quotas attached to each Stream, generate respondent entry
    links, and reconcile completed sessions.


    ## Authentication


    Authentication is done via an obfuscated GUID (API key) associated with each
    supplier and passed in the `Authorization` header of every request. To
    obtain credentials, contact Rep Data's Supply team at supply@repdata.com.


    ## Environments


    Production URL: `https://api.researchdesk.com`  

    Staging URL: `https://stage-api.researchdesk.com`


    We recommend completing full end-to-end testing in staging before going
    live. Staging test surveys 2634 (short, 1 question) and 2635 (longer, ~10
    minutes) are available for integration testing.


    ## Responses


    Successful responses are wrapped in a standard envelope:


    ``` json

    {
        "Status": 0,
        "Message": "Success",
        "Data": { }
    }
     ```

    A `Status` of `0` indicates success. `Data` contains the endpoint-specific
    payload.
servers:
  - url: https://api.researchdesk.com
    description: Production
  - url: https://stage-api.researchdesk.com
    description: Staging
security: []
paths:
  /v2/languages:
    get:
      summary: List Languages
      operationId: Lookups_Languages
      parameters:
        - name: Authorization
          in: header
          required: true
          description: Your obfuscated Supply API key (GUID), provided by Rep Data.
          schema:
            type: string
          example: '{{api_key}}'
      responses:
        '200':
          description: Supported languages and ISO codes.
          content:
            application/json:
              schema:
                type: object
                properties:
                  Status:
                    type: integer
                    description: 0 indicates success.
                  Message:
                    type: string
                  Data:
                    type: object
                    properties:
                      Languages:
                        type: array
                        items:
                          type: object
                          properties:
                            LanguageID:
                              type: string
                            LanguageName:
                              type: string
                            LanguageCode:
                              type: string
              example:
                Status: 0
                Message: Success
                Data:
                  Languages:
                    - LanguageID: '1'
                      LanguageName: English
                      LanguageCode: en
                    - LanguageID: '2'
                      LanguageName: Abkhazian
                      LanguageCode: ab
                    - LanguageID: '3'
                      LanguageName: Afar
                      LanguageCode: aa

````