IAB Standardizes Conversion API to Streamline Agentic Advertising
Event summary
- IAB Tech Lab released the Event and Conversion API (ECAPI) for public comment, closing February 20, 2026.
- ECAPI aims to standardize how marketing event data is shared between advertisers, platforms, and AI agents.
- The specification addresses the current fragmentation of Conversion APIs, which often require custom integrations and hinder scalability.
- ECAPI is designed to support IAB Tech Lab’s agentic advertising roadmap, enabling outcomes-based buying and selling.
The big picture
The introduction of ECAPI represents a significant effort to address the growing complexity of digital advertising, particularly as AI agents become more prevalent in campaign management. By standardizing event data sharing, IAB Tech Lab aims to reduce integration costs, improve measurement accuracy, and foster greater interoperability across the advertising ecosystem. This initiative could reshape how advertisers and platforms collaborate, potentially shifting power dynamics and accelerating the adoption of agentic buying models.
What we're watching
- Adoption Rate
- The level of industry participation in the public comment period and subsequent adoption of ECAPI will indicate its potential impact on the advertising ecosystem and the willingness of platforms to standardize.
- Agentic Integration
- The seamless integration of ECAPI into IAB Tech Lab’s agentic roadmap will be critical for realizing the vision of automated, outcomes-based advertising.
- Competitive Response
- Other advertising platforms may develop competing standards or proprietary solutions, potentially limiting the widespread adoption and benefits of ECAPI.
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