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Xandr API changes

Xandr (formerly AppNexus, now owned by Microsoft). Documentation fully migrated to Microsoft Learn (learn.microsoft.com/en-us/xandr/); legacy docs.xandr.com redirects. API endpoint base URL remains api.appnexus.com. Digital Platform API has no public release notes bulletin; break

LAST CHECKED
Jun 14, 2026
TRACKED SINCE
Mar 17, 2026
CHANGES / 90D
166
BREAKING / 90D
17
DETECTED CHANGES — MOST RECENT
  1. INFO Change Jun 13, 2026

    October 20, 2025 - Bulk Edit Deals

    - "version": "2024-09-30"
+ "version": "2025-06-01"
- POST /v1/xandr/charges
+ POST /v1/xandr/payments  (auth scope changed)
    🔒 Full diffs at launch — join the waitlist
  2. INFO Change Jun 13, 2026

    September 23, 2025 – Unified Sign-In with Microsoft account

    - "version": "2024-09-30"
+ "version": "2025-06-01"
- POST /v1/xandr/charges
+ POST /v1/xandr/payments  (auth scope changed)
    🔒 Full diffs at launch — join the waitlist
  3. INFO Change Jun 13, 2026

    July 28, 2025 - Copilot in Microsoft Curate

    - "version": "2024-09-30"
+ "version": "2025-06-01"
- POST /v1/xandr/charges
+ POST /v1/xandr/payments  (auth scope changed)
    🔒 Full diffs at launch — join the waitlist
  4. INFO Change Jun 13, 2026

    June 27, 2023: New Advertiser and Insertion Order screens in the Microsoft Curate UI

    - "version": "2024-09-30"
+ "version": "2025-06-01"
- POST /v1/xandr/charges
+ POST /v1/xandr/payments  (auth scope changed)
    🔒 Full diffs at launch — join the waitlist
  5. INFO Change Jun 13, 2026

    June 26, 2023: Troubleshoot Seller Deal in Open Beta

    - "version": "2024-09-30"
+ "version": "2025-06-01"
- POST /v1/xandr/charges
+ POST /v1/xandr/payments  (auth scope changed)
    🔒 Full diffs at launch — join the waitlist

How to track Xandr API changes

The Xandr API evolves without warning — endpoints move, parameters change, auth scopes tighten and old fields get deprecated. apik.dev watches the public Xandr API documentation for you: we scrape it on a schedule, diff every revision and grade each change as breaking or informational. Instead of re-reading the Xandr changelog by hand, you get a clean, dated record of exactly what changed — and why it matters.

Get notified when the Xandr API changes

Subscribe to Xandr and apik pages you by email or webhook the moment a change is detected — with the full diff, a severity grade and a short migration summary. Filter to Xandr breaking changes and deprecations only, so you hear about what will actually break your integration and nothing else.

FREQUENTLY ASKED — XANDR
How do I track Xandr API changes?
apik.dev tracks the Xandr API for you. We scrape the public Xandr API documentation on a schedule, diff every revision and grade what changed — so you never have to re-read the Xandr changelog by hand. Subscribe once and we monitor it continuously.
How do I get notified when the Xandr API changes?
When apik detects a Xandr API change, you're notified by email or webhook within hours — with the full diff, a severity grade (breaking vs. informational) and a short migration summary. You can choose to be alerted on breaking changes only.
What kinds of Xandr API changes does apik detect?
Endpoint changes, base-URL changes, authentication and parameter changes, schema changes and deprecations. Every Xandr API change is categorised and severity-graded so you can triage at a glance.
How often is the Xandr API checked for changes?
apik re-checks the public Xandr documentation on a daily schedule. The most recent check for Xandr ran on Jun 14, 2026.
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Don't find out from a 500.

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Xandr official docs ↗