Get started with OpenSincera API

OpenSincera is a media telemetry service provided free of charge by The Trade Desk. It leverages rich advertising metadata from Sincera to deliver detailed insights into advertiser quality and the digital advertising supply chain. This service provides access to comprehensive metadata from more than 400,000 publishers, offering granular information about environments, content, configurations, and devices where ads run across the open internet.

Since Sincera doesn't own or operate media, it remains neutral and helps gain objective insight into the quality and value of ad inventory on the open internet. The platform delivers objective quality metrics such as ads-to-content ratio (A2CR), page weight, average ads in view, and ad refresh rate. For more details on benefits and features, see OpenSincera.

With its easy-to-use API, anyone in the ad industry can build custom solutions to bring greater transparency to the ecosystem by seamlessly integrating this data into their platforms. To help you get started, the following sections outline the API requirements and provide guidelines, and examples. For FAQs, see OpenSincera FAQs.

Create your OpenSincera account

IMPORTANT: You must use a company email address to sign up. We don't accept generic email providers like Gmail.

To access the OpenSincera API, you must sign up for OpenSincera by doing the following:

  1. Go to the Sincera Create Your Account page.
  2. Fill out the form using your company email address.
  3. Confirm your account through the verification email.

Now you can retrieve your API token and access free publisher metadata from OpenSincera.

Retrieve your API token

To use the OpenSincera API, get an OpenSincera API bearer token by doing the following:

  1. On the OpenSincera website, click Sign In.
  2. Log in to your OpenSincera account.
  3. At the top-right, click your name and select Profile from the dropdown menu.
  4. In the API Key field in the Personal Information section, copy your API token.

Now you can use the token for making API calls. To learn more, see OpenSincera queries.