diff --git a/.github/workflows/publish-npm.yml b/.github/workflows/publish-npm.yml
index 2729574..dc5f6cf 100644
--- a/.github/workflows/publish-npm.yml
+++ b/.github/workflows/publish-npm.yml
@@ -4,7 +4,7 @@ on:
   pull_request:
   push:
     branches: [main]
-    tags: ["v*", "window-multicast-bridge-v*"]
+    tags: ["v*", "window-multicast-bridge-v*", "mabr-route-proxy-v*"]
   workflow_dispatch:
 
 # Node is pinned to an exact release, never the bare range '24' (the reasoning
@@ -82,6 +82,13 @@ jobs:
           npm test
           npm run test:dist
 
+      - name: Build and test the ROUTE mABR proxy
+        working-directory: packages/mabr-route-proxy
+        run: |
+          npm install --include=dev --no-audit --no-fund
+          npm run build
+          npm test
+
       - name: Pack release artifacts
         run: |
           mkdir npm-packages
@@ -92,7 +99,9 @@ jobs:
           # npm-packages/ against its tag, and the bridge's version is not that tag.
           mkdir npm-packages-bridge
           npm pack ./packages/window-multicast-bridge --pack-destination npm-packages-bridge
-          ls -l npm-packages npm-packages-bridge
+          mkdir npm-packages-mabr
+          npm pack ./packages/mabr-route-proxy --pack-destination npm-packages-mabr
+          ls -l npm-packages npm-packages-bridge npm-packages-mabr
 
       # Asserted on the packed tarballs, never on the repo tree: what ships is
       # the tarball, and `files` / .npmignore decide which of the two you are
@@ -100,7 +109,7 @@ jobs:
       - name: Verify tarball contents
         run: |
           set -euo pipefail
-          for tgz in npm-packages/*.tgz npm-packages-bridge/*.tgz; do
+          for tgz in npm-packages/*.tgz npm-packages-bridge/*.tgz npm-packages-mabr/*.tgz; do
             echo "=== $tgz ==="
             # Capture the member list once rather than piping `tar` into a
             # matcher: `grep -q` exits at the first match, which SIGPIPEs tar,
@@ -249,6 +258,13 @@ jobs:
           if-no-files-found: error
           retention-days: 7
 
+      - uses: actions/upload-artifact@v4
+        with:
+          name: npm-packages-mabr
+          path: npm-packages-mabr/*.tgz
+          if-no-files-found: error
+          retention-days: 7
+
   # Repo-surface privacy gate. This repository is PUBLIC; the tarball gate in
   # `build` is structurally incapable of seeing this surface, because both
   # packages declare `files: ["dist"]`, so docs/, src/*.test.ts and .github/
@@ -459,3 +475,37 @@ jobs:
 
       - name: Publish @blockcast/window-multicast-bridge
         run: npm publish ./npm-packages-bridge/blockcast-window-multicast-bridge-*.tgz --access public --provenance --loglevel silly
+
+  # The ROUTE adapter has its own version stream. Keep its tag and artifact
+  # separate from the existing v* gateway package release assertion.
+  publish-mabr:
+    needs: build
+    if: startsWith(github.ref, 'refs/tags/mabr-route-proxy-v')
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      id-token: write
+    steps:
+      - uses: actions/setup-node@v4
+        with:
+          node-version: ${{ env.NODE_VERSION }}
+      - name: Update npm
+        run: |
+          npm install --global npm@11
+          npm --version
+      - uses: actions/download-artifact@v4
+        with:
+          name: npm-packages-mabr
+          path: npm-packages-mabr
+      - name: Assert the tag matches the packed version
+        run: |
+          set -euo pipefail
+          tag="${GITHUB_REF_NAME#mabr-route-proxy-v}"
+          tgz="$(echo npm-packages-mabr/blockcast-mabr-route-proxy-*.tgz)"
+          version="$(tar -xOzf "$tgz" package/package.json | node -pe 'JSON.parse(require("fs").readFileSync(0)).version')"
+          [ "$version" = "$tag" ] || {
+            echo "::error::$tgz is $version, tag is $tag"
+            exit 1
+          }
+      - name: Publish @blockcast/mabr-route-proxy
+        run: npm publish npm-packages-mabr/blockcast-mabr-route-proxy-*.tgz --access public --provenance --loglevel silly
diff --git a/packages/mabr-route-proxy/package.json b/packages/mabr-route-proxy/package.json
index 86f6e9d..052ea24 100644
--- a/packages/mabr-route-proxy/package.json
+++ b/packages/mabr-route-proxy/package.json
@@ -10,6 +10,12 @@
   "scripts": { "build": "tsc -b", "typecheck": "tsc --noEmit", "test": "node --experimental-strip-types --test 'src/**/*.test.ts'", "test:e2e": "npm run build && node tests/route-wasm-shaka-e2e.mjs", "clean": "rm -rf dist tsconfig.tsbuildinfo" },
   "keywords": ["mabr", "route", "cmaf", "dash", "hls", "shaka"],
   "license": "MIT",
+  "publishConfig": { "access": "public" },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/Blockcast/beacon.git",
+    "directory": "packages/mabr-route-proxy"
+  },
   "dependencies": {},
   "devDependencies": { "typescript": "^5.7.0" }
 }
diff --git a/packages/mabr-route-proxy/src/route.test.ts b/packages/mabr-route-proxy/src/route.test.ts
index da1af6c..7ac4057 100644
--- a/packages/mabr-route-proxy/src/route.test.ts
+++ b/packages/mabr-route-proxy/src/route.test.ts
@@ -424,10 +424,12 @@ test('rejects a sourceless AMT endpoint instead of emitting a DRIAD join', async
 test('discovers AMT service bytes through a delivery-service hostname', async () => {
   const originalFetch = globalThis.fetch;
   const urls: string[] = [];
+  const fetchOptions: RequestInit[] = [];
   let config: Record<string, unknown> | undefined;
-  globalThis.fetch = (async (input: RequestInfo | URL) => {
+  globalThis.fetch = (async (input: RequestInfo | URL, init?: RequestInit) => {
     const url = String(input);
     urls.push(url);
+    fetchOptions.push(init ?? {});
     if (url === 'https://cdn.onprem-live-multicast.public-st.cdn.blockcast.net/slt/') {
       return new Response('<ul><li><a href="7" /></li></ul>');
     }
@@ -454,6 +456,10 @@ test('discovers AMT service bytes through a delivery-service hostname', async ()
       'https://cdn.onprem-live-multicast.public-st.cdn.blockcast.net/slt/',
       'https://cdn.onprem-live-multicast.public-st.cdn.blockcast.net/slt/7',
     ]);
+    assert.deepEqual(fetchOptions, [
+      { credentials: 'omit', mode: 'cors' },
+      { credentials: 'omit', mode: 'cors' },
+    ]);
     assert.deepEqual(config, {
       origin: 'amt', group: '232.0.1.3', port: 1024,
       consume: 'bytes', relay: 'amt-relay.example.test', relayPort: 2268,
diff --git a/packages/mabr-route-proxy/src/route.ts b/packages/mabr-route-proxy/src/route.ts
index ca1c506..dd000f1 100644
--- a/packages/mabr-route-proxy/src/route.ts
+++ b/packages/mabr-route-proxy/src/route.ts
@@ -231,7 +231,10 @@ async function discoverSlsEndpoint(options: RouteMabrOptions): Promise<RouteEndp
   const base = new URL(raw, globalThis.location?.href ?? 'http://localhost/');
   const basePath = base.pathname.replace(/\/+$/, '');
   const get = async (url: string): Promise<string> => {
-    const response = await globalThis.fetch(url);
+    // The DS is public HTTP discovery, not a TO control-plane endpoint. Keep
+    // browser credentials out of every LLS request even when the page has
+    // cookies for another authority.
+    const response = await globalThis.fetch(url, { credentials: 'omit', mode: 'cors' });
     if (!response.ok) throw new Error(`HTTP LLS fetch ${url} failed with ${response.status}`);
     return response.text();
   };