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Version: 2025-12-18

API overview

All requests to the Cint Exchange Demand API use the same base domain and major version number. The major version won't change often.

https://api.cint.com/v1
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The major version should not be confused with the minor version, which can be thought of as a child of the major version. To learn more about minor versions, see below.

Authentication​

To keep your requests secure, our API uses bearer token authentication. You'll need to include your JWT in every request by passing it in the Authorization header.

Authorization: Bearer <YOUR_JWT_TOKEN>

For more information on Cint Exchange authentication, see our authentication guide.

Structure and resource hierarchy​

The Cint API follows a RESTful design, where resources are organized hierarchically. This pattern is consistently applied across the API to represent relationships between different domain objects, making the API intuitive to navigate and understand.

For example, the URL to get a list of projects under a specific account is:

https://api.cint.com/v1/demand/accounts/1/projects

In this example:

  • api.cint.com/v1 is our base domain and major version.
  • /demand is the namespace for all demand ordering interactions.
  • /accounts is the collection for all accounts.
  • 1 is a specific account identifier.
  • /projects is the collection of projects belonging to the specified account.

Minor versions​

As we innovate and improve our API, we release new minor versions. Minor versions allow you to route your API calls to the specific versioned endpoint you want to interact with.

While the major version is always in the URL, the minor version is provided in the Cint-API-Version header.

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Minor version must be included in every request. Otherwise it will result with an error response.

Example of a request with the required Cint-API-Version header:

curl 'https://api.cint.com/v1/demand/accounts/1/projects' \
    --header 'Cint-API-Version: 2025-12-18' \
    --header 'Content-Type: application/json' \
    --header 'Authorization: Bearer <YOUR_JWT_TOKEN>'

For more information on versioning, see our versioning guide.