Quandl (Nasdaq Data Link) Tables API

openapi: 3.2.0
info:
  title: Nasdaq Data Link Time-Series REST Databases Tables API
  description: Nasdaq Data Link REST API (formerly Quandl) provides access to financial and economic time-series datasets including stock prices, economic indicators, interest rates, and commodity data in JSON, XML, and CSV formats. Authenticated users receive up to 50,000 API calls per day.
  version: 3.0.0
  contact:
    name: Nasdaq Data Link Support
    url: https://docs.data.nasdaq.com/docs/contact-support
  license:
    name: Nasdaq Data Link Terms of Use
    url: https://data.nasdaq.com/terms
servers:
- url: https://data.nasdaq.com/api/v3
  description: Nasdaq Data Link API
security:
- apiKeyQuery: []
- apiKeyHeader: []
tags:
- name: Tables
  description: Tabular dataset retrieval
paths:
  /datatables/{datatablesCode}:
    get:
      operationId: getDataTable
      summary: Query a datatable
      description: Returns rows from a Nasdaq Data Link datatable (tabular dataset). Supports row-level filtering, column selection, and pagination using cursor-based pagination. Maximum 10,000 rows per call.
      tags:
      - Tables
      parameters:
      - name: datatablesCode
        in: path
        required: true
        description: Database code and datatable code joined by slash (e.g. ZACKS/FC)
        schema:
          type: string
          example: ZACKS/FC
      - name: qopts.columns
        in: query
        description: Comma-separated column names to return
        schema:
          type: string
      - name: qopts.per_page
        in: query
        description: Number of rows per page (max 10000)
        schema:
          type: integer
          default: 100
          maximum: 10000
      - name: qopts.cursor_id
        in: query
        description: Cursor ID for pagination from previous response
        schema:
          type: string
      - name: qopts.export
        in: query
        description: Set to true to get a download link for full dataset
        schema:
          type: boolean
      - name: api_key
        in: query
        schema:
          type: string
      responses:
        '200':
          description: Datatable rows
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/DatatableResponse'
        '400':
          $ref: '#/components/responses/BadRequest'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '404':
          $ref: '#/components/responses/NotFound'
        '429':
          $ref: '#/components/responses/RateLimited'
components:
  responses:
    BadRequest:
      description: Invalid request parameters
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/QuandlError'
    NotFound:
      description: Dataset or database not found
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/QuandlError'
    Unauthorized:
      description: Invalid or missing API key
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/QuandlError'
    RateLimited:
      description: Rate limit exceeded
      headers:
        X-RateLimit-Limit:
          schema:
            type: integer
          description: Number of requests allowed per day
        X-RateLimit-Remaining:
          schema:
            type: integer
          description: Number of requests remaining today
        X-RateLimit-Reset:
          schema:
            type: integer
          description: Epoch timestamp when limit resets
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/QuandlError'
  schemas:
    DatatableResponse:
      type: object
      properties:
        datatable:
          type: object
          properties:
            data:
              type: array
              description: Array of data rows
              items:
                type: array
                items:
                  oneOf:
                  - type: string
                  - type: number
                  - type: 'null'
            columns:
              type: array
              description: Column metadata
              items:
                type: object
                properties:
                  name:
                    type: string
                  type:
                    type: string
        meta:
          type: object
          properties:
            next_cursor_id:
              type: string
              nullable: true
              description: Cursor ID for next page; null if no more data
    QuandlError:
      type: object
      properties:
        quandl_error:
          type: object
          properties:
            code:
              type: string
            message:
              type: string
  securitySchemes:
    apiKeyQuery:
      type: apiKey
      in: query
      name: api_key
      description: Nasdaq Data Link API key passed as query parameter
    apiKeyHeader:
      type: apiKey
      in: header
      name: X-Api-Token
      description: Nasdaq Data Link API key passed as header