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#11 of 15 · checked November 3, 2026

Kevel review

Kevel (formerly Adzerk) provides ad serving as a set of APIs that engineering teams use to build their own ad platforms and retail media networks. It is very flexible, but you need developers to get started.

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6.1/10

Our verdict

Kevel is a toolkit rather than a ready-made ad server. Its APIs and documentation are among the best we score, and it is widely used for sponsored listings and retail media. The trade-off is time and people: launching means building on its APIs, prices are quoted, and it is a poor fit for a non-technical ad team. It also offers its own optional exchanges (Kevel Exchange and KRX).

Key facts

Pick it if
you have engineers and want to build a custom ad product or sponsored listings on APIs.
What it costs
Pricing on request.
Can serve
Native, Display, Sponsored listings, Custom JSON ads
Website
www.kevel.com

Where it shines

  • Very flexible APIs with strong documentation
  • Good for sponsored listings and retail media
  • Custom ad formats through JSON

Watch out for

  • Needs developers to launch
  • Pricing not published
  • Not suited to non-technical ad teams

How it scored

Cost clarity
5

Pricing is not published; quotes on request.

Time to launch
5

API-first; launching needs developers.

Support
7

Technical support for teams building on the API.

Formats
6

Three tracked formats: native, display and sponsored listings (plus custom JSON ads).

Publisher fit
5

Build-it-yourself toolkit rather than a ready-made ad server.

Integrations & API
9

API-first, with extensive documentation for decisioning, reporting and audiences.

Independence
7

Offers its own optional exchanges (Kevel Exchange and KRX).

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