Rubicon Project
Rubicon Project is a Los Angeles-based advertising technology company, founded in 2007, that built and operated one of the largest real-time bidding advertising exchanges, connecting digital publishers (the sell side) with advertisers and demand-side platforms. In 2020 Rubicon Project merged with Telaria and rebranded as Magnite, now positioned as the world's largest independent sell-side (SSP) advertising company, spanning connected TV (CTV), online video, display, and audio across its DV+, SpringServe, ClearLine and Magnite Streaming platforms. This profile tracks the company as it exists today under the Magnite brand. Magnite publishes a public, machine-readable OpenAPI 3.1 contract for the SpringServe ad-serving platform (v1 and v0) at console.springserve.com/api-docs, mirrored for the ClearLine buy-side console at console.clearline.magnite.com, together with a public Confluence documentation space, published rate limits, a first-party Python SDK, mobile In-App Ads SDKs for iOS and Android, and OpenRTB protobuf extensions. Account creation and API credentials remain partner-gated; the contract itself is anonymously readable.
Real signal across most facets with visible, nameable gaps — the contract exists but is thin, or the portal is good while governance and commercial terms are absent.
API Evangelist profiles Rubicon Project the way a machine reads it — 86 machine-readable artifacts across 4 APIs, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Rubicon Project scores 46.2/100 (developing), with a separate agent-readiness read of 29/100 (agent ready). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Kin Score
This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance. Every facet and dimension name is a link: it opens that measurement's page on APIs.io, where the rating runs across the whole catalog — the exact checks that feed it, how every profiled provider distributes on it, and who is at the top of it.
Kin Score
How this is scored →scored 2026-09-08 · rubric v0.20.0
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How we profile Rubicon Project
Each block below is one kind of artifact we hold for Rubicon Project. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.
APIs 78
Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.
Individual APIs this provider publishes, each with its own machine-readable definition.
Magnite Exchange API (xAPI) OpenRTB Extensions
Magnite's Exchange API (xAPI) protobuf extensions to the IAB OpenRTB 2.x protobuf definitions, published in the open on GitHub. Defines Magnite-specific OpenRTB extension fields...
Rubicon Project Account Partner Segments API
The Account Partner Segments API from Rubicon Project — 3 operation(s) for account partner segments.
Rubicon Project Accounts API
The Accounts API from Rubicon Project — 23 operation(s) for accounts.
Rubicon Project Advertiser Domain Lists API
The Advertiser Domain Lists API from Rubicon Project — 9 operation(s) for advertiser domain lists.
Rubicon Project App Bundle Lists API
The App Bundle Lists API from Rubicon Project — 20 operation(s) for app bundle lists.
Rubicon Project App Name Lists API
The App Name Lists API from Rubicon Project — 21 operation(s) for app name lists.
Rubicon Project Audiences API
The Audiences API from Rubicon Project — 1 operation(s) for audiences.
Rubicon Project Audios API
The Audios API from Rubicon Project — 2 operation(s) for audios.
Rubicon Project Auth API
Endpoints that provide authentication for the API
Rubicon Project Bid Maps API
The Bid Maps API from Rubicon Project — 2 operation(s) for bid maps.
Rubicon Project Bills API
The Bills API from Rubicon Project — 8 operation(s) for bills.
Rubicon Project Campaigns API
The Campaigns API from Rubicon Project — 2 operation(s) for campaigns.
Rubicon Project Changelogs API
The Changelogs API from Rubicon Project — 6 operation(s) for changelogs.
Rubicon Project City Lists API
The City Lists API from Rubicon Project — 6 operation(s) for city lists.
Rubicon Project Connected Demand API
The Connected Demand API from Rubicon Project — 3 operation(s) for connected demand.
Rubicon Project Connected Supply API
The Connected Supply API from Rubicon Project — 3 operation(s) for connected supply.
Rubicon Project Content Categories API
The Content Categories API from Rubicon Project — 1 operation(s) for content categories.
Rubicon Project Country Lists API
The Country Lists API from Rubicon Project — 6 operation(s) for country lists.
Rubicon Project Creatives API
The Creatives API from Rubicon Project — 6 operation(s) for creatives.
Rubicon Project Creatives Audio API
The Creatives Audio API from Rubicon Project — 2 operation(s) for creatives audio.
Rubicon Project Creatives Filepaths API
The Creatives Filepaths API from Rubicon Project — 2 operation(s) for creatives filepaths.
Rubicon Project Creatives Tag API
The Creatives Tag API from Rubicon Project — 2 operation(s) for creatives tag.
Rubicon Project Creatives Tile API
The Creatives Tile API from Rubicon Project — 2 operation(s) for creatives tile.
Rubicon Project Creatives Video API
The Creatives Video API from Rubicon Project — 2 operation(s) for creatives video.
Rubicon Project Curated Marketplaces API
The Curated Marketplaces API from Rubicon Project — 5 operation(s) for curated marketplaces.
Rubicon Project Currencies API
The Currencies API from Rubicon Project — 1 operation(s) for currencies.
Rubicon Project Dashboards API
The Dashboards API from Rubicon Project — 27 operation(s) for dashboards.
Rubicon Project Deal Id Lists API
The Deal Id Lists API from Rubicon Project — 9 operation(s) for deal id lists.
Rubicon Project Deal Lists API
The Deal Lists API from Rubicon Project — 15 operation(s) for deal lists.
Rubicon Project Demand Labels API
The Demand Labels API from Rubicon Project — 6 operation(s) for demand labels.
Rubicon Project Demand Partners API
The Demand Partners API from Rubicon Project — 2 operation(s) for demand partners.
Rubicon Project Demand Tags API
The Demand Tags API from Rubicon Project — 17 operation(s) for demand tags.
Rubicon Project Direct Connection Clearing Terms API
The Direct Connection Clearing Terms API from Rubicon Project — 2 operation(s) for direct connection clearing terms.
Rubicon Project Direct Connections API
The Direct Connections API from Rubicon Project — 2 operation(s) for direct connections.
Rubicon Project Domain Lists API
The Domain Lists API from Rubicon Project — 26 operation(s) for domain lists.
Rubicon Project First Party Partner Segments API
The First Party Partner Segments API from Rubicon Project — 2 operation(s) for first party partner segments.
Rubicon Project Forecast API
The Forecast API from Rubicon Project — 1 operation(s) for forecast.
Rubicon Project Geo Lists API
The Geo Lists API from Rubicon Project — 4 operation(s) for geo lists.
Rubicon Project Global Fcap Pixels API
The Global Fcap Pixels API from Rubicon Project — 6 operation(s) for global fcap pixels.
Rubicon Project Hb Bid Maps API
The Hb Bid Maps API from Rubicon Project — 6 operation(s) for hb bid maps.
Rubicon Project Header Bidding Platforms API
The Header Bidding Platforms API from Rubicon Project — 2 operation(s) for header bidding platforms.
Rubicon Project Ip Lists API
The Ip Lists API from Rubicon Project — 9 operation(s) for ip lists.
Rubicon Project ISP Lists API
The ISP Lists API from Rubicon Project — 11 operation(s) for isp lists.
Rubicon Project Keys API
The Keys API from Rubicon Project — 4 operation(s) for keys.
Rubicon Project Magnite Programmatic API
The Magnite Programmatic API from Rubicon Project — 1 operation(s) for magnite programmatic.
Rubicon Project Metro Area Lists API
The Metro Area Lists API from Rubicon Project — 6 operation(s) for metro area lists.
Rubicon Project Notifications API
The Notifications API from Rubicon Project — 7 operation(s) for notifications.
Rubicon Project Operative API
The Operative API from Rubicon Project — 2 operation(s) for operative.
Rubicon Project Parameter Lists API
The Parameter Lists API from Rubicon Project — 9 operation(s) for parameter lists.
Rubicon Project Partner Segments API
The Partner Segments API from Rubicon Project — 10 operation(s) for partner segments.
Rubicon Project Permissions API
The Permissions API from Rubicon Project — 2 operation(s) for permissions.
Rubicon Project Postal Code Lists API
The Postal Code Lists API from Rubicon Project — 6 operation(s) for postal code lists.
Rubicon Project Publisher Id Lists API
The Publisher Id Lists API from Rubicon Project — 9 operation(s) for publisher id lists.
Rubicon Project Report API
The Report API from Rubicon Project — 2 operation(s) for report.
Rubicon Project Report Templates API
The Report Templates API from Rubicon Project — 3 operation(s) for report templates.
Rubicon Project Reports API
The Reports API from Rubicon Project — 4 operation(s) for reports.
Rubicon Project Run As API
The Run As API from Rubicon Project — 4 operation(s) for run as.
Rubicon Project Scanned Creative Lists API
The Scanned Creative Lists API from Rubicon Project — 11 operation(s) for scanned creative lists.
Rubicon Project Scheduled Reports API
The Scheduled Reports API from Rubicon Project — 3 operation(s) for scheduled reports.
Rubicon Project Search API
The Search API from Rubicon Project — 14 operation(s) for search.
Rubicon Project Segments API
The Segments API from Rubicon Project — 9 operation(s) for segments.
Rubicon Project Session API
The Session API from Rubicon Project — 1 operation(s) for session.
Rubicon Project State Lists API
The State Lists API from Rubicon Project — 6 operation(s) for state lists.
Rubicon Project Supply Labels API
The Supply Labels API from Rubicon Project — 6 operation(s) for supply labels.
Rubicon Project Supply Name Lists API
The Supply Name Lists API from Rubicon Project — 11 operation(s) for supply name lists.
Rubicon Project Supply Partners API
The Supply Partners API from Rubicon Project — 2 operation(s) for supply partners.
Rubicon Project Supply Routers API
The Supply Routers API from Rubicon Project — 3 operation(s) for supply routers.
Rubicon Project Supply Tags API
The Supply Tags API from Rubicon Project — 9 operation(s) for supply tags.
Rubicon Project System Settings API
The System Settings API from Rubicon Project — 2 operation(s) for system settings.
Rubicon Project Tag Creatives API
The Tag Creatives API from Rubicon Project — 2 operation(s) for tag creatives.
Rubicon Project Tiles API
The Tiles API from Rubicon Project — 2 operation(s) for tiles.
Rubicon Project Timezones API
The Timezones API from Rubicon Project — 1 operation(s) for timezones.
Rubicon Project User Accounts API
The entity that combines a User and an Account and defines the role the user plays on that account
Rubicon Project Users API
The Users API from Rubicon Project — 6 operation(s) for users.
Rubicon Project Value Lists API
The Value Lists API from Rubicon Project — 2 operation(s) for value lists.
Rubicon Project Vendors API
The Vendors API from Rubicon Project — 2 operation(s) for vendors.
Rubicon Project Videos API
The Videos API from Rubicon Project — 2 operation(s) for videos.
Rubicon Project White Labels API
The White Labels API from Rubicon Project — 1 operation(s) for white labels.
Scroll within the panel for all 78 ·
Open Collections 2
Open, tool-agnostic collections carry the same runnable value as Postman without locking you to one client — the portable, forkable form of the same exercise.
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
SpringServe UI API (V0)
OPEN COLLECTIONSpringServe UI API
OPEN COLLECTIONPricing Plans 1
Pricing is part of the interface. Machine-readable plans tell you what a tier costs and includes before you commit — one of the things the Kin Score reads for access clarity — renamed from commercial clarity in rubric 0.12, because a free statutory interface has access terms and no commercial ones.
Published pricing tiers and plan structures.
Rate Limits 1
Rate limits are the difference between a demo that works and a production integration that doesn't fall over. Publishing them is an operational-transparency signal — and a hard requirement for any agent that plans its own throughput.
Documented rate limits and quota policies.
Rubicon Project Rate Limits
RATE LIMITSSecurity Posture 3
Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
An x-agentic-access contract marks which operations are safe for an agent to run on its own and which need a human in the loop. It is the difference between an API an agent can use and one it can use safely.
Recommended x-agentic-access execution contracts for AI agents.
Resources
Every other property we hold for Rubicon Project — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.
Get Started 3
Portal, sign-up, and the first successful call
Documentation 2
Reference material describing how the API behaves
Agent Surfaces 4
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 5
Pagination, idempotency, versioning, errors, and events
Build 4
SDKs, sample code, and the tooling you integrate with
Access & Security 4
Authentication, authorization, and security posture
Operate 3
Status, limits, changes, and where to get help
Commercial 3
Pricing, plans, and the legal terms of use
Company 2
The organization behind the API
Other 3
Properties that don't map to a standard resource type
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This is an independent, third-party profile of Rubicon Project, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.
The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.
Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.
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