specification: API Commons Rate Limits
specificationVersion: '0.1'
schema: https://raw.githubusercontent.com/api-evangelist/interface-research/main/schema/api-commons.yml#/$defs/RateLimits
provider: Calypso Workstation
providerId: calypso-workstation
created: '2026-05-04'
modified: '2026-09-05'
generated: '2026-09-05'
method: searched
source: https://www.nasdaq.com/products/fintech/calypso
tags:
  - Capital Markets
  - Financial Technology
  - Market Data
  - Portfolio Management
  - Risk Management
  - Trading
  - Rate Limiting
description: >-
  Published rate limits for Nasdaq Calypso Workstation. There are none. Calypso
  Workstation is the desktop client of an enterprise, customer-deployed capital
  markets platform; no public API host, no public API reference, and therefore
  no published quota, window, burst ceiling, throttling status code or
  RateLimit/X-RateLimit response header could be found on any Nasdaq or Calypso
  host.
limit_count: 0
limits: []
headers: {}
responseCodes: {}
policies: []
note: >-
  This file previously carried free/professional/enterprise tiers with invented
  requests-per-minute and monthly quotas plus a full X-RateLimit-* header set,
  written by the 2026-05-04 bulk sweep and stamped method:generated. The
  provider publishes none of that. Replaced with the measured zero. Any real
  limits would be contractual and would reach a customer through the Nasdaq
  Customer Portal, which is Okta-gated.
x-evidence:
  - url: https://www.nasdaq.com/products/fintech/calypso
    status: 200
    note: No API reference, no limits.
  - url: https://www.nasdaq.com/products/fintech/calypso/front-office
    status: 200
    note: No API reference, no limits.
  - url: https://customerportal.nasdaq.com/client/resources
    status: 200
    note: Redirects to https://customerportal.nasdaq.com/auth/login — customer-only.
maintainers:
  - FN: Kin Lane
    email: kin@apievangelist.com