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
  (real-time bidstream enrichment, auction insights, and identity resolution), and OpenXControl (publisher yield management
  and demand routing). OpenX runs five developer surfaces on api.openx.com: a REST Platform API (v4) for accounts, inventory,
  orders, deals, and targeting; a Reporting API for asynchronous CSV report generation across 41 dimensions and 9 metrics;
  an OpenXSelect GraphQL API for audiences, segments, deals, and bidder objects; an OpenXBuild Real-Time Bidstream API that
  a partner implements as a containerized enrichment service (HTTP POST /openrtb25 plus an IAB Agentic RTB Framework gRPC
  RTBExtensionPoint); and an undocumented but live remote MCP server. Authentication is OAuth 2.0 authorization-code with
  PKCE fronted by Google Cloud Identity Platform, published through real OIDC and RFC 9728 discovery documents, with a separate
  90-day x-apikey credential for the GraphQL API. OpenX publishes no OpenAPI, no Postman collection, no status page, no pricing,
  and no security.txt, and its documentation site currently renders as a broken single-page-app shell whose underlying content
  survives only as a JSON search index. The company is a major contributor to the Prebid.org header-bidding ecosystem and
  maintains a large GitHub organization, though its first-party API client libraries were last released to a package registry
  in 2021 and still target a legacy OAuth 1.0 login host that now returns HTTP 502. The business model is transaction-fee
  based, and API access requires an active OpenX account and BD/account-management onboarding rather than self-service signup.'
type: Index
accessModel:
  pricing: none
  onboarding: sales
  trial: false
  try_now: false
  public: false
  label: Sales-gated
  confidence: high
  source:
  - https://www.openx.com/pricing/
  - https://docs.openx.com/marketers/openxbuild/oxb-rtb-api-get-started/
  - https://docs.openx.com/publishers/reporting-api/
  generated: '2026-08-13'
  method: searched
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
- GraphQL
- gRPC
- MCP
- Reporting
- Audience Targeting
url: https://raw.githubusercontent.com/api-evangelist/openx/refs/heads/main/apis.yml
created: '2026-05-25'
modified: '2026-08-13'
specificationVersion: '0.20'
apis:
- aid: openx:openx-platform-api
  name: OpenX Platform API
  description: JSON REST API (v4) for the OpenX ad server. Sixteen CRUD objects (account, ad, adunit, adunitgroup, comment,
    creative, deal, floorrule, lineitem, optimization, order, package, paymenthistory, site, sitesection, user) and six read-only
    services (audittrail, geo, market, options, session, subtypes). Batch create/update/delete, offset pagination via limit/offset
    with a has_more flag, and a per-object /available_fields endpoint that returns the field schema for a given action. Bearer
    token plus an X-Openx-Instance tenant header.
  humanURL: https://docs.openx.com/developers/api-ref/
  baseURL: https://api.openx.com/api/v1/ox/4.0
  tags:
  - platform
  - rest
  - inventory
  - deals
  - targeting
  properties:
  - url: https://docs.openx.com/developers/api-ref/
    type: APIReference
  - url: https://docs.openx.com/developers/about-topics-api/
    type: Documentation
  - url: https://docs.openx.com/developers/api-get-started-auth/
    type: GettingStarted
  - url: authentication/openx-authentication.yml
    type: Authentication
  - url: conventions/openx-conventions.yml
    type: Conventions
  - url: errors/openx-error-types.yml
    type: ErrorCatalog
  - url: data-model/openx-data-model.yml
    type: DataModel
  - url: rate-limits/openx-rate-limits.yml
    type: RateLimits
- aid: openx:openx-reporting-api
  name: OpenX Reporting API
  description: Asynchronous reporting API for authorized OpenX publishers. POST generateReport with dimensions, metrics, filters,
    reportType (HOURLY|DAILY) and an ISO-8601 date range returns a report id; POST pullReport exchanges that id for a CSV
    (HTTP 202 while still generating). 41 case-sensitive dimensions and 9 metrics, a 1,000,000-row and 1 GB ceiling per report,
    and a 3-month (hourly) or 2-year (daily) lookback window.
  humanURL: https://docs.openx.com/publishers/reporting-api-reference/
  baseURL: https://api.openx.com/api/v1/reporting-api
  tags:
  - reporting
  - analytics
  - rest
  - publishers
  properties:
  - url: https://docs.openx.com/publishers/reporting-api-reference/
    type: APIReference
  - url: https://docs.openx.com/publishers/reporting-api/
    type: Documentation
  - url: https://github.com/openx/reporting-api-client
    type: SourceCode
  - url: authentication/openx-authentication.yml
    type: Authentication
  - url: rate-limits/openx-rate-limits.yml
    type: RateLimits
- aid: openx:openxselect-api
  name: OpenXSelect API
  description: GraphQL API (BETA) for the OpenXSelect curation platform — query providers, segments, audiences, deals and
    packages, and mutate audiences (create/update/archive/activate), deals, routed retargeting segments and the bidder object
    family (BidderOrder, BidderLineItem, BidderCreative). Authenticated with a 90-day organization-wide API key in an x-apikey
    header. Introspection is gated; the published reference documents ~120 objects, ~40 inputs, custom scalars and interfaces.
  humanURL: https://docs.openx.com/openxselect/oxs-api-reference/
  baseURL: https://api.openx.com/oa/graphql
  tags:
  - graphql
  - curation
  - audiences
  - deals
  - segments
  properties:
  - url: https://docs.openx.com/openxselect/oxs-api-reference/
    type: APIReference
  - url: https://docs.openx.com/openxselect/oxs-api-get-started/
    type: GettingStarted
  - url: graphql/openx-graphql.md
    type: GraphQL
  - url: https://docs.openx.com/openxselect/oxs-api-graphql-explorer/
    type: Sandbox
  - url: sandbox/openx-sandbox.yml
    type: Sandbox
  - url: https://docs.openx.com/openxselect/oxs-api-errors-and-exceptions/
    type: ErrorCatalog
  - url: data-model/openx-data-model.yml
    type: DataModel
- aid: openx:openx-mcp-server
  name: OpenX MCP Server
  description: Live remote Model Context Protocol server at https://api.openx.com/mcp. Discovered by probe, not by documentation
    — OpenX does not mention MCP anywhere in its published docs, but the endpoint answers POST and GET with a JSON-RPC 2.0
    envelope and an OAuth challenge. The tool list is auth-gated behind the same OAuth 2.0 authorization server that fronts
    the Platform API, advertised through RFC 9728 protected-resource metadata naming the resource "OpenX Platform API".
  humanURL: https://docs.openx.com/developers/api-authentication/
  baseURL: https://api.openx.com/mcp
  tags:
  - mcp
  - agent-native
  - oauth
  properties:
  - url: mcp/openx-mcp.yml
    type: MCPServer
  - url: authentication/openx-authentication.yml
    type: Authentication
  - url: scopes/openx-scopes.yml
    type: OAuthScopes
  - url: well-known/openx-well-known.yml
    type: WellKnown
- aid: openx:openxbuild-real-time-bidstream-api
  name: OpenXBuild Real-Time Bidstream API
  description: An inverted API — OpenX is the caller. A partner implements an enrichment service that OpenX hosts as a container
    inside its own Kubernetes namespace and calls in the auction path, either as HTTP POST /openrtb25 with an OpenRTB 2.5
    BidRequest projection, or as the IAB Agentic RTB Framework gRPC RTBExtensionPoint.GetMutations over OpenRTB 2.6 protos.
    The service returns segment activations, extended identifiers, or deal floor overrides inside a 10 ms budget. No baseURL
    is recorded because the endpoint is the partner's container, assigned a port by OpenX at deployment time.
  humanURL: https://docs.openx.com/marketers/openxbuild/oxb-rtb-api/
  tags:
  - openrtb
  - grpc
  - bidstream
  - enrichment
  - iab-artf
  properties:
  - url: https://docs.openx.com/marketers/openxbuild/oxb-rtb-api-spec/
    type: APIReference
  - url: https://docs.openx.com/marketers/openxbuild/oxb-rtb-api-artf/
    type: Documentation
  - url: https://docs.openx.com/marketers/openxbuild/oxb-rtb-api-get-started/
    type: GettingStarted
  - url: grpc/openx-artf-rtbextensionpoint.proto
    type: Protobuf
  - url: grpc/openx-oxext.proto
    type: Protobuf
  - url: grpc/_index.yml
    type: Protobuf
  - url: https://github.com/openx/openx-enrichment-service-template
    type: SourceCode
common:
- type: Website
  url: https://www.openx.com
- type: DeveloperPortal
  url: https://docs.openx.com/developers/about-topics-api/
- type: Documentation
  url: https://docs.openx.com
- type: APIReference
  url: https://docs.openx.com/developers/api-ref/
- type: GettingStarted
  url: https://docs.openx.com/developers/api-get-started-auth/
- type: Support
  url: https://docs.openx.com/resources/support/
- type: HelpCenter
  url: https://community.openx.com
- type: ChangeLog
  url: https://docs.openx.com/resources/release-notes/
- type: ChangeLog
  url: changelog/openx-changelog.yml
- type: Authentication
  url: authentication/openx-authentication.yml
- type: OAuthScopes
  url: scopes/openx-scopes.yml
- type: Conventions
  url: conventions/openx-conventions.yml
- type: ErrorCatalog
  url: errors/openx-error-types.yml
- type: DataModel
  url: data-model/openx-data-model.yml
- type: Lifecycle
  url: lifecycle/openx-lifecycle.yml
- type: Conformance
  url: conformance/openx-conformance.yml
- type: RateLimits
  url: rate-limits/openx-rate-limits.yml
- type: Plans
  url: plans/openx-plans-pricing.yml
- type: Packages
  url: packages/openx-packages.yml
- type: SDKs
  url: packages/openx-packages.yml
- type: Components
  url: components/openx-components.yml
- type: Sandbox
  url: sandbox/openx-sandbox.yml
- type: MCPServer
  url: mcp/openx-mcp.yml
- type: WellKnown
  url: well-known/openx-well-known.yml
- type: LLMsTxt
  url: llms/openx-llms.txt
- type: GraphQL
  url: graphql/openx-graphql.md
- type: Protobuf
  url: grpc/_index.yml
- type: DomainSecurity
  url: security/openx-domain-security.yml
- type: OpenXExchange
  url: https://www.openx.com/openxexchange/
- type: OpenXSelect
  url: https://www.openx.com/openxselect/
- type: OpenXBuild
  url: https://www.openx.com/openxbuild/
- type: OpenXControl
  url: https://www.openx.com/openxcontrol/
- 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: KnowledgeHub
  url: https://www.openx.com/knowledge-hub/
- type: Leadership
  url: https://www.openx.com/leadership/
- type: Newsroom
  url: https://www.openx.com/news-press/
- type: Blog
  url: https://blog.openx.com/
- type: Careers
  url: https://www.openx.com/careers/
- type: Contact
  url: https://www.openx.com/contact/
- type: PrivacyPolicy
  url: https://www.openx.com/legal/privacy-policy/
- type: TermsOfService
  url: https://www.openx.com/legal/terms-and-conditions/
- type: Legal
  url: https://www.openx.com/legal/
- type: Regulations
  url: https://docs.openx.com/resources/regulations/
- 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 — Reporting API Client (Python)
  url: https://github.com/openx/reporting-api-client
- type: Tool — Enrichment Service Template
  url: https://github.com/openx/openx-enrichment-service-template
- type: Tool — OpenRTB 2.x Specification
  url: https://github.com/openx/openrtb2.x
- type: Tool — Prebid.js
  url: https://github.com/openx/Prebid.js
- type: Tool — Prebid Server
  url: https://github.com/openx/prebid-server
- type: Tool — SSRTBPriceCrypter
  url: https://github.com/openx/SSRTBPriceCrypter
- type: LinkedIn
  url: https://www.linkedin.com/company/openx
- type: Twitter
  url: https://twitter.com/OpenX
- type: YouTube
  url: https://www.youtube.com/@OpenX
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
x-enrichment:
  date: '2026-08-13'
  status: enriched
  artifacts_added: 23
  pass: local-v1