Migrating from PubMatic

Export your supply source list from PubMatic

Export site/app list with: name, domain/bundle, floor CPMs, deal IDs.

Create supply sources in Praevis

For each PubMatic site/app, create a Praevis supply source:

POST /api/supply/sources
{
  "name": "Supply Source Name",
  "domain": "com.example.app",
  "type": "ctv",
  "floor_price_cpm": 3.00
}

Map PubMatic floor CPMs directly to Praevis floor prices.

Update your ad server / SSP

Replace the PubMatic RTB endpoint with Praevis:

Old: https://ow.pubmatic.com/openrtb/2.5/...
New: https://rtb.praevis.com/rtb
Auth: Add header X-Publisher-ID: {PUBLISHER_ID}

The bid request format (OpenRTB 2.5) is compatible. Verify:

• publisher.id maps to your Praevis Supply Source ID
• imp[0].bidfloor matches your Praevis floor price
• app.bundle or site.domain matches your registered supply source

Migrate deal IDs

Private marketplace deal IDs must be re-registered in Praevis:

1. Go to Supply → your supply source → Deals → Add Deal
2. Set the same deal_id string you used in PubMatic (if buyers use the same ID)
3. Notify your demand source partners of the new endpoint so they associate the deal ID with Praevis traffic

Run in parallel

Use traffic splitting at your ad server level:

• 80% to PubMatic, 20% to Praevis initially
• Scale Praevis up as fill rate establishes

Update app-ads.txt

praevis.com, {YOUR_PUBLISHER_ID}, DIRECT

Leave PubMatic’s line in place during transition:

pubmatic.com, {PUBMATIC_SEAT_ID}, DIRECT