Build a custom
ad server
in just weeks

Kevel's APIs let you easily build a custom ad server for native ads, retail media, sponsored listings, DOOH, and much more.

Start Now Watch Video

"With Kevel's APIs we built the exact ad server we wanted. No other solution could provide this flexibility."

VP of Product, Ticketmaster

Build your ideal ad server with ad APIs

Kevel’s APIs provide the core infrastructure for ad serving, targeting, and reporting. Don't reinvent the wheel — leave the plumbing to Kevel and focus on building an ad product as unique as you.

Tech deep dive

Built for developers. Trusted by enterprises.

curl -H 'Content-Type:application/json' \
  -X POST \
  -d '{"placements":[{
  "user":{"key":"abc"}}' \
{ "user": { "key": "abc" },
  "decisions": {
    "div1": {
      "adID": 1234567,
      "creativeID": 7654321,
      "flightID": 9876543,
      "campaignID": 3456789,
      "clickURL": "",
      "imageURL": "",
      "height": 250,
      "width": 300,

APIs and SDKs to bring your vision to life.

  • Target using first-party data
  • Create self-serve advertising portals
  • Employ first and second price auctions
  • Offer city and geo-radius targeting
Kevel Example Ad Solution
Kevel Example Ad Solution
Kevel Example Ad Solution
Kevel Example Ad Solution
Kevel Example Ad Solution
Kevel Example Ad Solution

Maximize revenue. Save time & cost.

  • Launch an MVP quickly, without hiring more engineers
  • Easily add new features to your homegrown solution
  • Bypass ad blockers with ad server APIs
  • Automate your current manual processes

Drive ad revenue without compromising on security or the user experience

Fast response times

We average 28ms


No cookies or JS tags

Fully white-labeled

The front end is all you

SAAS pricing

No rev share model

Discover what others have built with Kevel's ad APIs

Want a personalized demo?

Learn more about how to build a custom ad server with Kevel's Ad APIs