aid: big-xyt
url: https://raw.githubusercontent.com/api-evangelist/big-xyt/refs/heads/main/apis.yml
name: big xyt
kind: company
description: big xyt AG (now branded simply xyt, with big-xyt.com redirecting to xyt.one)
  is an independent, majority employee-owned market data analytics firm headquartered
  in Frankfurt am Main, Germany. It sells tick-data-driven market intelligence covering
  equities, ETFs, listed derivatives, FX, and fixed income across 120+ venues, processing
  12bn+ messages per day with roughly ten years of history at nanosecond precision
  and market-by-order granularity. Products include the Liquidity Cockpit (market
  share and liquidity analytics), Transaction Cost Analysis against its SMART benchmark,
  pre-trade cost modeling, a Datashop of analysis-ready datasets and APIs, and an
  xyt AI natural-language query layer. Three API products are publicly named - the
  big xyt API, Liquidity Cockpit API, and TCA API - but their reference documentation
  sits behind a login at docs.big-xyt.com (HTTP 403 unauthenticated), and access is
  sales-gated via a book-a-demo motion with no self-serve signup, public pricing,
  or public OpenAPI.
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/big-xyt.png
tags:
- Financial
- Market Data
- Tick Data
- Trading
- Analytics
- Equities
- ETFs
- Transaction Cost Analysis
- Liquidity
- Order Book
created: '2026-07-21'
modified: '2026-07-22'
specificationVersion: '0.19'
apis:
- aid: big-xyt:big-xyt-api
  name: big xyt API
  tags:
  - Tick Data
  - Market Data
  - Analytics
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.big-xyt.com/en/api/api
  properties:
  - url: https://docs.big-xyt.com/en/api/api
    type: Documentation
  - url: https://xythub.github.io/
    type: Portal
  description: The core big xyt (xyt hub) API gives trading firms and exchanges programmatic
    access to normalised and raw tick data and analytics across 120+ venues without
    in-house tick data infrastructure. Publicly listed on the xythub.github.io landing
    page, but the reference documentation at docs.big-xyt.com is login-gated (HTTP
    403 unauthenticated), so endpoints and base URLs are not publicly documented.
    Legacy public docs (2018, github.com/xythub) described an HTTPS REST service using
    OAuth 2.0 password-grant bearer tokens with Protocol Buffers payloads and official
    Python, R, Java, and C# client libraries.
- aid: big-xyt:liquidity-cockpit-api
  name: Liquidity Cockpit API
  tags:
  - Liquidity
  - Market Share
  - Equities
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.big-xyt.com/en/security-analytics/api
  properties:
  - url: https://docs.big-xyt.com/en/security-analytics/api
    type: Documentation
  - url: https://liquidity-cockpit.com/
    type: Website
  description: API access to the Liquidity Cockpit, big xyt's dark and lit liquidity,
    market share, and market quality analytics for navigating fragmented equity market
    structure. Publicly named on the xythub.github.io landing page with a product
    site at liquidity-cockpit.com, but the API reference at docs.big-xyt.com is login-gated
    (HTTP 403 unauthenticated), so no endpoints or base URL are publicly documented.
- aid: big-xyt:tca-api
  name: TCA API
  tags:
  - Transaction Cost Analysis
  - Execution Analytics
  - Best Execution
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.big-xyt.com/en/execution-analytics/api
  properties:
  - url: https://docs.big-xyt.com/en/execution-analytics/api
    type: Documentation
  description: Execution analytics API spanning basic Transaction Cost Analysis -
    benchmarking trades and orders for best execution, compliance, and client reporting
    - through full API access to quantitative modelling functions for exchanges and
    sell-side and buy-side analysts. Publicly named on the xythub.github.io landing
    page, but the API reference at docs.big-xyt.com is login-gated (HTTP 403 unauthenticated),
    so no endpoints or base URL are publicly documented.
common:
- type: DomainSecurity
  url: security/big-xyt-domain-security.yml
- type: Authentication
  url: authentication/big-xyt-authentication.yml
- type: LLMsTxt
  url: llms/big-xyt-llms.txt
- type: Login
  url: https://platform.xyt.one/
- type: Website
  url: https://xyt.one/
- type: Portal
  url: https://xythub.github.io/
- type: Documentation
  url: https://docs.big-xyt.com/
- type: GitHubOrganization
  url: https://github.com/xythub
- type: LinkedIn
  url: https://www.linkedin.com/company/big-xyt/
- type: Blog
  url: https://xyt.one/insights
- type: PrivacyPolicy
  url: https://xyt.one/privacy-policy
- type: Support
  url: https://xythub.github.io/support.html
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com