What is LINK API?

Tap into decision intelligence from LINK AI and LINK+ via the API to evaluate content faster, optimise performance, and integrate insights into your ecosystem.

Evaluate performance
Access aggregated results from LINK AI and LINK+ to measure creative effectiveness.

Integrate seamlessly
Embed insights directly into your tools, dashboards, or AI systems for connected analysis and reporting.

Get started easily
Enjoy simple setup and flexible integration designed for speed and efficiency.


Why use the LINK API

Campaign decisions now move faster than traditional insight workflows.

Marketers are producing content at scale and making decisions faster than manual insight processes can keep up.

Intelligence needs to show up where decisions are made, in real time and at scale.

Static reports, one-off tests, and manual uploads don’t scale to that reality.

The LINK API is designed to close that gap.


What it enables

The LINK API allows creative decision intelligence to:

01

Flow directly into the systems where decisions are made

Digital Asset Management (DAM) platforms, Demand-Side Platforms (DSPs), Business Intelligence tools, and internal platforms.
 
02

Trigger automatically, at scale

No manual uploads or one-off workflows.
03

Surface earlier in the content development lifecycle

So intelligence can influence decisions, not just explain outcomes.
 
04

Bring creative and media effectiveness together

Supporting higher-confidence decisions across channels and markets.
Ready to get started?

Get in touch

Interested in using Kantar APIs or want to learn more? 

→ Contact us and discuss how this could work for your team.  

Everything you need to get up and running.

Request credentials 
Contact Support to get your Client ID and Secret, the secure credentials you need for authentication

Create a token
Use your credentials to generate an access token

Start building
Make your first API calls and start integrating Kantar intelligence

Get support
Our team is here to help if you need guidance

Access centralised documentation, authentication guidance, and API references all in one place on the Kantar API Developer Portal. 

Go to Kantar API Developer Portal

  • What should you consider before integrating with the API?

    Before moving to technical implementation, it’s important to align with your Kantar representative on: 

    1. Your workflow 

    2. Your use case 

    3. The metrics needed to support your decisions 

    4. Expected volume 

    5. Whether the API will be used to return scores only, or also to trigger tests 

    Kantar API Developer Portal provides detailed guidance for technical teams once these elements are defined. Please reach out to our Support team to get access to the Developer Portal. 

  • Do Kantar teams build the integration?

    No. You (or your agencies or technology partners) are responsible for building the integration. This requires: 

    - A development or technical team on your side 

    - Clear ownership of the workflow and systems involved 

    Kantar provides the API, documentation, and support materials, but does not implement the integration inside your systems. 

  • Can creative or media agencies have access?

    Yes. With your approval, agencies can be granted access to use the integration or run tests on your behalf. 

    Integrations may be built by you, your agencies, or jointly, depending on who owns the workflow. 

  • Where in your workflow can the Kantar API integrate?

    The API is flexible and can integrate at multiple points in your workflow, including: 

    - Digital Asset Management (DAM) systems 

    - Compliance platforms 

    - Creative quality platforms  

    - Activation and Demand-Side Platform (DSP) environments 

    - Business Intelligence tools and data lakes 

    Some brands integrate at more than one point in the workflow (e.g. pre-flight and in-flight). These are treated as separate integrations. 

  • What are the benefits of connecting systems for brands and agencies?

    It depends on where LINK AI data is integrated within your workflow, and the use cases, insights, and decisions you want to enable. 

    For example, when integrated into a Digital Asset Management (DAM) system, LINK AI can act as an early “quality and approval” signal, helping you make faster, more confident decisions about what to approve, reuse, adapt, or retire before production time and media budget are committed. 

    For brands and agencies working together, the benefit is alignment: creative effectiveness signals can directly inform media decisions, helping focus investment on the assets most likely to perform, reduce wasted spend, and improve overall effectiveness. 

  • Does testing always happen automatically?

    This depends on how you design your integration. LINK AI tests can be: 

    - Triggered automatically by predefined rules (e.g. when an asset reaches a specific stage in a DAM) 

    - Manually triggered by users 

    You define the trigger logic based on your workflow and decision-making needs. 

  • Will you see the same metrics everywhere, or can you choose what is surfaced?

    The API returns a predefined set of metrics for LINK AI and LINK+, along with any “custom metrics” specific to your setup. 

    You can consult the developer portal to see which standard metrics are available for LINK AI and LINK+. Not all metrics shown in the dashboard are available via the API. 

    You can choose which of the available LINK AI or LINK+ metrics to surface within your integration. 

    In practice: 

    - Earlier workflow stages tend to use simpler, directional scores 

    - Later stages (e.g. DSPs, MMMs) may use richer metric sets 

    Where the integration sits in your workflow is just as important as the metrics themselves. 

  • If you don’t pull all metrics into my ecosystem, can you still access the full suite of metrics via the dashboards?

    Yes. Using the API does not affect scoring or what is shown in the dashboard. 

    When results are returned via the API, a link to the dashboard is also provided so you can access the full set of metrics. 

  • Are the attention and emotional engagement outputs (e.g. heat maps, etc.) available via the API?

    Outputs such as heatmaps and trace lines are not available via the API. 

    However, they remain accessible through the LINK AI dashboard for API users. The data is still available but must be accessed via the Kantar Marketplace interface. 

  • Is LINK AI content optimiser available via the API?

    No. LINK AI content optimiser is currently accessed through the Kantar dashboard. 

    The API can return LINK AI scores and results, with links to the dashboard so you can continue the optimisation process there. 

     

  • How is the asset account selected when you have multiple credit or asset balances?

    The asset bank is explicitly chosen during integration setup; it is not inferred. 

    The API is linked to a specific subscription or container tied to a defined asset account, which you will be asked to specify during setup. 

  • Who can you contact if you have questions or need support?

    If you have any questions or need support at any stage, you can contact your Kantar representative or reach out to our Support team; we’ll be happy to guide you or help resolve any issues.