diff --git a/.changeset/fix-url-type-tracker-pixel-channel-docs.md b/.changeset/fix-url-type-tracker-pixel-channel-docs.md
new file mode 100644
index 0000000000..04925e2af0
--- /dev/null
+++ b/.changeset/fix-url-type-tracker-pixel-channel-docs.md
@@ -0,0 +1,5 @@
+---
+"adcontextprotocol": patch
+---
+
+docs(creative-channels): replace invalid `"url_type": "tracker"` with `"url_type": "tracker_pixel"` in display, audio, carousels, and DOOH channel docs to match the `url-asset-type.json` enum (`clickthrough` / `tracker_pixel` / `tracker_script`). Addresses adcp#2986 step 1 (3.0.x docs cleanup). Wire format unchanged — the published schema enum already excluded `"tracker"`, so the channel docs were emitting an invalid value sellers could not validate against.
diff --git a/docs/creative/channels/audio.mdx b/docs/creative/channels/audio.mdx
index 4bb3f34eda..99cb9a0c9c 100644
--- a/docs/creative/channels/audio.mdx
+++ b/docs/creative/channels/audio.mdx
@@ -176,7 +176,7 @@ Multi-segment audio assembled dynamically:
     },
     "impression_tracker": {
       "asset_type": "url",
-      "url_type": "tracker",
+      "url_type": "tracker_pixel",
       "url": "https://track.brand.com/imp?buy={MEDIA_BUY_ID}&station={APP_BUNDLE}&cb={CACHEBUSTER}"
     },
     "landing_url": {
@@ -199,7 +199,7 @@ Multi-segment audio assembled dynamically:
   "assets": {
     "vast_url": {
       "asset_type": "url",
-      "url_type": "tracker",
+      "url_type": "tracker_pixel",
       "url": "https://ad-server.brand.com/audio-vast?campaign={MEDIA_BUY_ID}&cb={CACHEBUSTER}"
     }
   }
diff --git a/docs/creative/channels/carousels.mdx b/docs/creative/channels/carousels.mdx
index aa7a297098..aa897b0466 100644
--- a/docs/creative/channels/carousels.mdx
+++ b/docs/creative/channels/carousels.mdx
@@ -670,7 +670,7 @@ https://track.brand.com/view?buy={MEDIA_BUY_ID}&item={CAROUSEL_INDEX}&total={CAR
     },
     "impression_tracker": {
       "asset_type": "url",
-      "url_type": "tracker",
+      "url_type": "tracker_pixel",
       "url": "https://track.brand.com/imp?buy={MEDIA_BUY_ID}&cb={CACHEBUSTER}"
     }
   }
diff --git a/docs/creative/channels/display.mdx b/docs/creative/channels/display.mdx
index 72629ed715..1058da6c6f 100644
--- a/docs/creative/channels/display.mdx
+++ b/docs/creative/channels/display.mdx
@@ -213,7 +213,7 @@ Display formats in AdCP include:
     },
     "impression_tracker": {
       "asset_type": "url",
-      "url_type": "tracker",
+      "url_type": "tracker_pixel",
       "url": "https://track.brand.com/imp?buy={MEDIA_BUY_ID}&cb={CACHEBUSTER}"
     }
   }
diff --git a/docs/creative/channels/dooh.mdx b/docs/creative/channels/dooh.mdx
index be5b9c15f7..129a221a44 100644
--- a/docs/creative/channels/dooh.mdx
+++ b/docs/creative/channels/dooh.mdx
@@ -43,7 +43,7 @@ DOOH formats differ from other digital formats:
     {
       "asset_id": "impression_tracker",
       "asset_type": "url",
-      "url_type": "tracker",
+      "url_type": "tracker_pixel",
       "required": true
     }
   ]
@@ -75,7 +75,7 @@ DOOH formats differ from other digital formats:
     {
       "asset_id": "impression_tracker",
       "asset_type": "url",
-      "url_type": "tracker",
+      "url_type": "tracker_pixel",
       "required": true
     }
   ]
@@ -109,7 +109,7 @@ DOOH formats differ from other digital formats:
     {
       "asset_id": "impression_tracker",
       "asset_type": "url",
-      "url_type": "tracker",
+      "url_type": "tracker_pixel",
       "required": true
     }
   ]
@@ -124,7 +124,7 @@ DOOH formats use impression trackers (often called "proof-of-play") to verify wh
 {
   "asset_id": "impression_tracker",
   "asset_type": "url",
-  "url_type": "tracker",
+  "url_type": "tracker_pixel",
   "required": true,
   "requirements": {
     "required_macros": [
@@ -158,7 +158,7 @@ The mechanics are identical to digital impression tracking - it's just a URL tha
     },
     "impression_tracker": {
       "asset_type": "url",
-      "url_type": "tracker",
+      "url_type": "tracker_pixel",
       "url": "https://track.brand.com/pop?buy={MEDIA_BUY_ID}&screen={SCREEN_ID}&venue={VENUE_TYPE}&ts={PLAY_TIMESTAMP}&lat={VENUE_LAT}&long={VENUE_LONG}"
     }
   }
@@ -184,7 +184,7 @@ The mechanics are identical to digital impression tracking - it's just a URL tha
     },
     "impression_tracker": {
       "asset_type": "url",
-      "url_type": "tracker",
+      "url_type": "tracker_pixel",
       "url": "https://track.brand.com/pop?buy={MEDIA_BUY_ID}&screen={SCREEN_ID}&ts={PLAY_TIMESTAMP}"
     }
   }