Observed Signal · Jan 6, 2026 · Product Launch · Source: AdExchanger · Impact: 2/5 · Sentiment: Positive
tvScientific Leverages OpenX APIs for Enhanced Ad Performance
OpenX announced OpenXBuild, a new suite of APIs designed to give advertisers closer control over ad performance by accessing bidstream data and signals. The suite comprises the Auction Insights API (historical bidstream events), the Identity Resolution API (an audience graph for targeting segments), and the Real-Time Bidstream API (real-time custom logic for bidding). tvScientific, a CTV ad-buying startup recently acquired by Pinterest, is testing the Real-Time Bidstream API as a pilot partner, integrating tvScientific’s AI model within OpenX’s infrastructure to achieve closer proximity to supply and improved bid decisions. OpenX CTO Joel Meyer notes that this approach helps quantify impressions by content type, geography, and channel, creating feedback loops to optimize future bids. The discussion also references the IAB Tech Lab’s Agentic RTB Framework and notes that MCPs can enable AI tool integration inside APIs, though bidstream interaction via MCP remains inefficient today.
OpenXBuild represents an API-driven direction toward closer bidstream access and integration with identity data; pilot with Pinterest-owned tvScientific highlights ongoing industry momentum.
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Key Takeaways & Evidence Grounding
- OpenX announced OpenXBuild, a suite of APIs for advertisers to better control ad performance.
- The suite includes Auction Insights API, Identity Resolution API, and Real-Time Bidstream API.
- tvScientific is a pilot partner testing the Real-Time Bidstream API; tvScientific was acquired by Pinterest.
- ARTF (Agentic RTB Framework) inspired OpenX's Real-Time Bidstream API and promotes containerization in bidstream deployment.
- OpenX CTO Joel Meyer says MCPs allow integration of AI tools within APIs, but bidstream interaction via MCP is currently inefficient.
Connected Companies & Entities
3 Entities mappedRelated Market Signals & Shifts
Recent verified developments and strategic activity across this market segment.
OpenXBuild: Revolutionizing Real-Time Ad Performance Control
OpenX Technologies announced OpenXBuild, a new software suite designed for brand and agency buyers to control ad performance in real time, leveraging first-party data and proprietary decisioning logic. OpenXBuild includes APIs such as Auction insights API (BIDS), Identity resolution API using OpenX's identity graph, and Real-time bidstream API, enabling pre-auction decisioning and lower costs. The identity API spans over 237 million US users and 150 million CTV devices, supporting cross-channel targeting. tvScientific adopted the real-time bidstream API to optimize programmatic campaigns, reporting a 70% reduction in cost-per-conversion on OpenX traffic. The solution emphasizes privacy-first data processing, low latency, and streamlined integration with fewer API calls, aiming to reduce operational overhead for buyers.
OpenX Launches OpenXBuild Real‑Time AdTech Suite
On 6 January 2026 OpenX announced OpenXBuild, a software suite for brand and agency buyers designed to enable real‑time control over ad performance, reach and insights. OpenXBuild exposes APIs including an Auction Insights API (first feature: BIDS — Bidding Intelligence Data Set), an Identity Resolution API built on OpenX’s proprietary identity graph (covering 237 million US users and 150 million CTV devices), and a Real‑time Bidstream API that lets buyers run their data and decisioning models before the auction. The product targets low‑latency, privacy‑first pre‑auction filtering across CTV, mobile, desktop and apps. tvScientific is cited as an early adopter of the real‑time bidstream API, saying it achieved a reported 70% reduction in cost‑per‑conversion on OpenX traffic.
OpenX and TVision Unveil Real-Time Attention Targeting for CTV
On 11 March 2026 OpenX Technologies launched OpenX Attention Targeting, a supply-side capability that lets advertisers target high-attention connected TV (CTV) inventory in real time. The solution is powered by TVision’s CTV attention measurement and is available exclusively through OpenXSelect. TVision’s passive, in-home person-level panel feeds predictive attention models that are combined with OpenX bidstream signals (time of day, device type, viewing duration) to enable pre-bid targeting across TV by OpenX supply. Advertisers can apply attention targeting to curated deals via self-serve or managed workflows, layer attention with audience, content, and contextual targeting, and access reach via OpenX’s identity graph (231M+ monthly uniques). OpenX and TVision position the launch as a move from post-campaign attention measurement to real-time optimisation of CTV performance.
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