OpenX

aid: openx
name: OpenX
description: OpenX is an independent supply-side platform (SSP) and programmatic ad exchange headquartered in Pasadena, California,
  founded in 2008. OpenX connects publishers and app developers to advertiser demand through a real-time marketplace that
  runs OpenRTB-based auctions across display, video, CTV, native, and mobile inventory. Its product suite is organized around
  the OpenX Exchange (the core marketplace), OpenXSelect (curation, deal creation, and supply-path targeting), OpenXBuild
  (a software toolkit for assembling custom supply-side workflows and real-time bidstream integrations), and OpenXControl
  (publisher yield management and demand routing). OpenX exposes several developer-facing APIs documented at docs.openx.com
  — an OpenRTB API for DSP bidding integrations, a Platform API for account, inventory, demand, targeting, and deal management,
  a Reporting API for analytics and performance metrics, an OpenXSelect GraphQL API for managing audiences/deals/inventory
  lists, and an OpenXBuild Real-Time Bidstream API — but the references are gated behind OAuth and OpenX does not publish
  a public OpenAPI specification or Postman collection. The company is a major contributor to the Prebid.org header-bidding
  ecosystem (Prebid.js and Prebid Server) and maintains a large GitHub organization with OAuth-based API client libraries
  in Python, PHP, Java, Perl, and Ruby for the legacy OX3 API. OpenX's business model is transaction-fee based — it takes
  a share of each ad impression cleared through its exchange — and access to the developer APIs requires an active OpenX account
  and BD/account-management onboarding rather than self-service signup.
type: Index
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
position: Provider
access: 3rd-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/openx.png
tags:
- Advertising
- Programmatic Advertising
- Ad Exchange
- Supply Side Platform
- SSP
- Real Time Bidding
- OpenRTB
- Header Bidding
- Prebid
- AdTech
- CTV
- Video Advertising
- Display Advertising
- Curation
- Identity
url: https://raw.githubusercontent.com/api-evangelist/openx/refs/heads/main/apis.yml
created: '2026-05-25'
modified: '2026-05-25'
specificationVersion: '0.20'
apis: []
common:
- type: DomainSecurity
  url: security/openx-domain-security.yml
- type: Website
  url: https://www.openx.com
- type: Products
  url: https://www.openx.com/products/
- type: Documentation
  url: https://docs.openx.com
- type: Developers
  url: https://docs.openx.com/Content/developers/index.html
- type: OpenXExchange
  url: https://www.openx.com/products/openx-exchange/
- type: OpenXSelect
  url: https://www.openx.com/products/openx-select/
- type: OpenXBuild
  url: https://www.openx.com/products/openx-build/
- type: OpenXControl
  url: https://www.openx.com/products/openx-control/
- type: Publishers
  url: https://www.openx.com/publishers/
- type: Advertisers
  url: https://www.openx.com/advertisers/
- type: Partners
  url: https://www.openx.com/partners/
- type: Leadership
  url: https://www.openx.com/leadership/
- type: Newsroom
  url: https://www.openx.com/newsroom/
- type: Blog
  url: https://www.openx.com/blog/
- type: Careers
  url: https://www.openx.com/careers/
- type: Contact
  url: https://www.openx.com/contact/
- type: PrivacyPolicy
  url: https://www.openx.com/privacy-policy/
- type: TermsOfService
  url: https://www.openx.com/terms-of-use/
- type: GitHubOrganization
  url: https://github.com/openx
- type: SDK — Python (OX3)
  url: https://github.com/openx/OX3-Python-API-Client
- type: SDK — PHP (OX3)
  url: https://github.com/openx/OX3-PHP-API-Client
- type: SDK — Java (OX3)
  url: https://github.com/openx/OX3-Java-API-Client
- type: SDK — Perl (OX3)
  url: https://github.com/openx/OX3-Perl-API-Client
- type: SDK — Ruby (OX3)
  url: https://github.com/openx/OX3-Ruby-API-Client
- type: Tool — Prebid.js
  url: https://github.com/openx/Prebid.js
- type: Tool — Prebid Server
  url: https://github.com/openx/prebid-server
- type: Tool — Reporting API Client (Python)
  url: https://github.com/openx/reporting-api-client
- type: Tool — SSRTBPriceCrypter
  url: https://github.com/openx/SSRTBPriceCrypter
- type: Tool — Enrichment Service Template
  url: https://github.com/openx/openx-enrichment-service-template
- type: LinkedIn
  url: https://www.linkedin.com/company/openx
- type: Twitter
  url: https://twitter.com/OpenX
- type: YouTube
  url: https://www.youtube.com/user/OpenXTV
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com