Populate scanner feeds from the public ProScan directory

apps/web/src/views/pages.jsx

@@ -393,6 +393,45 @@ export const ItemPage = ({
         )}
       />
       {item.data?.exit ? <WayInOut data={item.data} /> : null}
+      {item.kind === 'scanner-stream' ? (
+        <section>
+          <h2>Listen live</h2>
+          <p>{item.data?.location_label ?? item.data?.jurisdiction ?? ''}</p>
+          {item.data?.directory_present === false ? (
+            <p>This scanner is no longer listed.</p>
+          ) : (
+            <p>
+              <a href={item.data?.player_url ?? item.url} rel="noopener nofollow">
+                Open scanner player ↗
+              </a>
+              {item.data?.stream_url ? (
+                <>
+                  {' '}
+                  ·{' '}
+                  <a href={item.data.stream_url} rel="noopener nofollow">
+                    Open audio stream ↗
+                  </a>
+                </>
+              ) : null}
+              {item.data?.playlist_url ? (
+                <>
+                  {' '}
+                  ·{' '}
+                  <a href={item.data.playlist_url} rel="noopener nofollow">
+                    Media-player playlist ↗
+                  </a>
+                </>
+              ) : null}
+            </p>
+          )}
+          {item.data?.directory_url ? (
+            <p class="small muted">
+              Source: <a href={item.data.directory_url}>ProScan public directory</a>. Audio comes
+              directly from the scanner operator.
+            </p>
+          ) : null}
+        </section>
+      ) : null}
       {nearby !== null ? (
         <section>
           <h2>Reported incidents in scanner coverage</h2>

docs/geographic-queries.md

@@ -93,6 +93,41 @@ geographic flags. The corresponding MCP tools expose the same fields;
 a snapshot: concurrent arrivals or location changes can shift pages. Use the
 existing ID/update cursors for synchronization with the default ordering.
 
+## Default public scanner directory
+
+`proscan-scanners` seeds the enabled `scanners-proscan` source on startup. It
+indexes the public [ProScan server directory](https://www.proscan.org/web_servers/list)
+every 15 minutes, keeping player URLs, location labels, scanner models and source
+attribution. No API key or manually supplied JSON catalog is needed.
+
+Each run visits up to 12 player pages, least recently checked first, within the
+worker deadline. It extracts explicitly advertised `<audio src>`, nested audio
+sources, direct audio links and `.m3u`/`.pls` playlist links. ProScan's unclosed
+`<audio>` markup is supported. It never guesses a stream endpoint or downloads
+an audio stream. Listings appear even before their player has been checked.
+
+The scanner page links directly to the operator's player, audio URL and media
+playlist. `stream_access: "publicly-advertised"` identifies discovered links;
+`stream_reuse_allowed` remains false because link discovery is not a grant to
+record or redistribute audio. HTTP-only streams open at their source, avoiding
+mixed-content playback problems on NicheDB's HTTPS pages.
+
+Robots rules are checked per origin/path, including redirected player pages.
+Unavailable robots due to a server error, rate limit or network failure defer
+the visit. Missing robots (HTTP 4xx other than 429) has no rules. Authentication
+failures and challenges are not bypassed. Requests pin a validated public DNS
+address, revalidate redirects, cap text responses and use short timeouts.
+
+Disappearing directory entries are marked `directory_present: false` and their
+obsolete audio links are cleared. Transient player failures retain previously
+advertised links with `discovery_status: "unreachable"` and separate discovery
+and attempt timestamps. A failed/changed directory page does not erase records.
+
+Directory locations are labels, not verified radio coverage polygons. No county
+centroid or receiver location is invented: these entries retain unknown GPS
+coverage until a source supplies it, and therefore do not produce speculative
+nearby-crime associations.
+
 ## Permissioned scanner catalogs
 
 Add a `scanner-directory` source in the `crime` collection with `config.url`

packages/adapters/src/index.js

@@ -91,6 +91,7 @@ import { p0dcasters } from './p0dcasters.js';
 import { buildingPermits } from './permits.js';
 import { podcastindexCatalog } from './podcastindex-catalog.js';
 import { podcasts } from './podcasts.js';
+import { proscanDirectory } from './proscan.js';
 import { pypi } from './pypi.js';
 import { redditDeals } from './redditdeals.js';
 import { rogueIncidents, rogueResearch } from './rogueaitracker.js';
@@ -163,6 +164,7 @@ export const ADAPTERS = [
   ecbFxRates,
   socrataCrime,
   scannerDirectory,
+  proscanDirectory,
   ukPoliceCrime,
   fbiCrimeEstimates,
   usaspendingAwards,