aid: onetick
url: https://raw.githubusercontent.com/api-evangelist/onetick/refs/heads/main/apis.yml
name: OneTick (OneMarketData)
kind: company
description: OneTick, from OneMarketData, is an enterprise tick database and analytics
  platform for capital markets, capturing, storing, and analyzing trade, quote, and
  order-book time series at scale for quant research, transaction cost analysis, and
  trade surveillance. OneTick Cloud sells historical and reference market data covering
  200+ global equities, options, and futures venues (history back to 1993, corporate
  actions, symbol cross-reference) delivered on demand through an OAuth2-secured REST
  WebAPI, a pandas-like Python API (onetick-py), a directed-graph Python API, SQL
  querying, and file delivery, with a self-serve trial registration. The detailed
  REST endpoint reference sits behind the cloud dashboard login. OneMarketData merged
  with KX in September 2025 under TA Associates ownership.
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/onetick.png
tags:
- Financial
- Market Data
- Tick Data
- Historical Data
- Trading
- Analytics
- Surveillance
- Time Series
- Equities
- Options
created: '2026-07-21'
modified: '2026-07-22'
specificationVersion: '0.19'
apis:
- aid: onetick:onetick-cloud-rest-api
  name: OneTick Cloud REST API (WebAPI)
  tags:
  - REST
  - Market Data
  - Tick Data
  - Historical Data
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://www.onetick.com/cloud-services/rest-api-end-point-documentation
  baseURL: https://rest.cloud.onetick.com/omdwebapi/rest/
  properties:
  - url: https://www.onetick.com/cloud-services/rest-api-end-point-documentation
    type: Documentation
  - url: https://blog.onetick.com/basic-setup-of-webapi-access-to-onetick-cloud
    type: Documentation
  description: HTTPS REST access to OneTick Cloud market data and analytics queries,
    authenticated with an OAuth2 client-credentials Bearer token issued by the OneTick
    Keycloak realm (https://cloud-auth.parent.onetick.com/realms/OMD/protocol/openid-connect/token).
    A REST URL builder and per-endpoint reference (parameters and output schemas)
    are provided behind the cloud dashboard login; the public page describes the API
    but does not enumerate endpoints.
- aid: onetick:onetick-py-python-api
  name: OneTick Python API - onetick-py (pandas-style)
  tags:
  - Python
  - Pandas
  - Market Data
  - Analytics
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.pip.distribution.sol.onetick.com/
  baseURL: https://rest.cloud.onetick.com
  properties:
  - url: https://docs.pip.distribution.sol.onetick.com/
    type: Documentation
  - url: https://github.com/onemarketdata/onetick-py
    type: GitHubRepository
  - url: https://www.onetick.com/cloud-services/onetick-python-queries-using-pandas-style-api
    type: Documentation
  - url: llms/onetick-py-llms.txt
    type: LLMsTxt
  - url: https://docs.pip.distribution.sol.onetick.com/static/changelog.html
    type: ChangeLog
  description: A pandas-like Python API for querying tick-by-tick market data in OneTick,
    published on PyPI as onetick-py with openly browsable documentation. Against OneTick
    Cloud it executes over the WebAPI transport (OTP_HTTP_ADDRESS=https://rest.cloud.onetick.com)
    using the same OAuth2 client credentials, returning results as pandas DataFrames.
- aid: onetick:onetick-python-directed-graph-api
  name: OneTick Python API - Directed Graph
  tags:
  - Python
  - Query
  - Market Data
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://pythonquery.docs.sol.onetick.com/intro.html
  baseURL: https://rest.cloud.onetick.com
  properties:
  - url: https://pythonquery.docs.sol.onetick.com/intro.html
    type: Documentation
  - url: https://www.onetick.com/cloud-services/onetick-python-queries-using-directed-graph-style-api
    type: Documentation
  description: The lower-level directed-graph-style Python query API for OneTick,
    composing event-processor graphs against tick series, with openly browsable documentation
    and worked examples on the OneTick Cloud site.
- aid: onetick:onetick-sql-api
  name: OneTick SQL API
  tags:
  - SQL
  - Query
  - Market Data
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://sql.docs.sol.onetick.com/intro.html
  baseURL: https://rest.cloud.onetick.com
  properties:
  - url: https://sql.docs.sol.onetick.com/intro.html
    type: Documentation
  - url: https://github.com/onemarketdata/onetick-sql-docs
    type: GitHubRepository
  - url: https://www.onetick.com/cloud-services/sql-querying-examples
    type: Documentation
  description: SQL querying over OneTick tick and reference data, documented openly
    and runnable against OneTick Cloud (including via otp.SqlQuery in onetick-py over
    the WebAPI transport).
- aid: onetick:onetick-point-in-time-tca-api
  name: OneTick Point-in-Time TCA API
  tags:
  - TCA
  - Transaction Cost Analysis
  - Historical Data
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://www.onetick.com/pit-tca-api
  baseURL: https://rest.cloud.onetick.com
  properties:
  - url: https://www.onetick.com/pit-tca-api
    type: Documentation
  - url: https://www.onetick.com/pit-tca-methodology
    type: Documentation
  description: Cloud API for extracting adjusted and unadjusted point-in-time quotes
    and trades at nanosecond precision across 200+ venues for transaction cost analysis,
    packaged for Python integration; marketed sales-led (request a demo) with no public
    endpoint reference.
common:
- type: DomainSecurity
  url: security/onetick-domain-security.yml
- type: WellKnown
  url: well-known/onetick-well-known.yml
- type: LLMsTxt
  url: llms/onetick-llms.txt
- type: Packages
  url: packages/onetick-packages.yml
- type: SDKs
  url: packages/onetick-packages.yml
- type: Authentication
  url: authentication/onetick-authentication.yml
- type: OAuthScopes
  url: scopes/onetick-scopes.yml
- type: Conformance
  url: conformance/onetick-conformance.yml
- type: Lifecycle
  url: lifecycle/onetick-lifecycle.yml
- type: ChangeLog
  url: changelog/onetick-changelog.yml
- type: GettingStarted
  url: https://docs.pip.distribution.sol.onetick.com/static/getting_started/root.html
- type: APIReference
  url: https://docs.pip.distribution.sol.onetick.com/api/root.html
- type: Website
  url: https://www.onetick.com/
- type: Portal
  url: https://authdash.cloud.onetick.com/web_dashboard/?dash=sub_profile
- type: Documentation
  url: https://docs.pip.distribution.sol.onetick.com/
- type: GitHubOrganization
  url: https://github.com/onemarketdata
- type: LinkedIn
  url: https://www.linkedin.com/company/onemarketdata
- type: Blog
  url: https://blog.onetick.com/
- type: SignUp
  url: https://cloud-auth.parent.onetick.com/realms/OMD/protocol/openid-connect/registrations?client_id=acf_onetick_cloud&scope=openid%20profile&redirect_uri=https://authdash.cloud.onetick.com/web_dashboard/j_security_check&response_type=code
- type: TermsOfService
  url: https://www.onetick.com/terms-of-use
- type: PrivacyPolicy
  url: https://www.onetick.com/privacy-policy
- type: Contact
  url: https://www.onetick.com/contact
- type: StatusPage
  url: https://www.onetick.com/cloud-services/system-availability
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com