generated: '2026-07-22'
method: searched
source: https://docs.data.nasdaq.com/docs/python-cli
name: bulkdownload (Nasdaq Data Link Python CLI)
description: >-
  Official first-party Python CLI for bulk downloading tables data from Nasdaq
  Data Link as parquet files. Distributed as the ndlbulkdownload package on
  PyPI; source at github.com/Nasdaq/ndlbulkdownload.
install:
  - method: pip
    command: pip install ndlbulkdownload
    source: https://pypi.org/project/ndlbulkdownload/
repository: https://github.com/Nasdaq/ndlbulkdownload
environment:
  - name: NDL_APIKEY
    description: Data Link API key, used for all requests to perform bulk download
    required: true
  - name: NDL_HOSTNAME
    description: Alternative hostname to retrieve files
    required: false
commands:
  - command: bulkdownload
    description: Bulk download a table (vendor_code/table_code) from Data Link
    flags:
      - flag: --code
        description: "The vendor_code/table_code to download (example: NDAQ/ESMS)"
        required: true
      - flag: --param
        description: Add query param key/value pair (row filters like date.gte, ticker.in[]); repeatable
      - flag: --debug
        description: Increase log level to DEBUG
      - flag: --verbose
        description: Show logging output
      - flag: --skip-proxy
        description: Ignore proxy environment variables
      - flag: --skip-ssl-verify
        description: Do not verify SSL (not recommended)
      - flag: --redirect / --no-redirect
        description: "Request redirect to files (default: true)"
      - flag: --workers
        description: "Total parallel workers (default: min(32, os.cpu_count()))"
      - flag: --host
        description: Define an alternative hostname
      - flag: --version
        description: Show program version
examples:
  - description: Download data for a date
    command: NDL_APIKEY=API_KEY bulkdownload --code NDAQ/GITH --param date.eq 2024-09-01
  - description: Download data between a date range
    command: NDL_APIKEY=API_KEY bulkdownload --code NDAQ/GITH --param date.gte 2024-09-01 --param date.lte 2024-09-10
  - description: Download multiple tickers in a date range
    command: NDL_APIKEY=API_KEY bulkdownload --code NDAQ/GITH --param 'ticker.in[]' DAA --param 'ticker.in[]' DAT --param date.gte 2024-01-01 --param date.lte 2024-04-01
  - description: Bulk download an entire table
    command: NDL_APIKEY=API_KEY bulkdownload --code NDAQ/GITH
rate_limits:
  - New subscribers have an initial limit of 25 API calls per table
  - Ongoing daily limit of 30 API calls per table per day (resets 00:00 UTC)
output: Parquet files, which can be concatenated locally into a full database