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
position: Provider
access: 3rd-Party
image: https://kinlane-productions.s3.amazonaws.com/apis-json/apis-json-logo.jpg
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: 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