diff --git a/api/ethos/artists.ts b/api/ethos/artists.ts
new file mode 100644
index 00000000..f67ee5a8
--- /dev/null
+++ b/api/ethos/artists.ts
@@ -0,0 +1,134 @@
+import { createClient } from "@supabase/supabase-js";
+
+const supabase = createClient(
+  process.env.VITE_SUPABASE_URL || "",
+  process.env.SUPABASE_SERVICE_ROLE || "",
+);
+
+export default async function handler(req: any, res: any) {
+  const { method, query, body, headers } = req;
+  const userId = headers["x-user-id"];
+
+  try {
+    if (method === "GET") {
+      const artistId = query.id;
+
+      if (artistId) {
+        const { data: artist, error: artistError } = await supabase
+          .from("ethos_artist_profiles")
+          .select(
+            `
+            user_id,
+            skills,
+            for_hire,
+            bio,
+            portfolio_url,
+            sample_price_track,
+            sample_price_sfx,
+            sample_price_score,
+            turnaround_days,
+            verified,
+            total_downloads,
+            created_at,
+            user_profiles(id, full_name, avatar_url, email)
+          `,
+          )
+          .eq("user_id", artistId)
+          .single();
+
+        if (artistError && artistError.code !== "PGRST116") throw artistError;
+
+        if (!artist) {
+          return res.status(404).json({ error: "Artist not found" });
+        }
+
+        const { data: tracks } = await supabase
+          .from("ethos_tracks")
+          .select("*")
+          .eq("user_id", artistId)
+          .eq("is_published", true)
+          .order("created_at", { ascending: false });
+
+        res.json({
+          ...artist,
+          tracks: tracks || [],
+        });
+      } else {
+        const { limit = 50, offset = 0, verified, forHire } = query;
+
+        let dbQuery = supabase.from("ethos_artist_profiles").select(
+          `
+          user_id,
+          skills,
+          for_hire,
+          bio,
+          portfolio_url,
+          sample_price_track,
+          sample_price_sfx,
+          sample_price_score,
+          turnaround_days,
+          verified,
+          total_downloads,
+          created_at,
+          user_profiles(id, full_name, avatar_url)
+        `,
+          { count: "exact" },
+        );
+
+        if (verified === "true") dbQuery = dbQuery.eq("verified", true);
+        if (forHire === "true") dbQuery = dbQuery.eq("for_hire", true);
+
+        const { data, error, count } = await dbQuery
+          .order("verified", { ascending: false })
+          .order("total_downloads", { ascending: false })
+          .range(Number(offset), Number(offset) + Number(limit) - 1);
+
+        if (error) throw error;
+
+        res.json({
+          data,
+          total: count,
+          limit: Number(limit),
+          offset: Number(offset),
+        });
+      }
+    } else if (method === "PUT") {
+      if (!userId) return res.status(401).json({ error: "Unauthorized" });
+
+      const {
+        skills,
+        for_hire,
+        bio,
+        portfolio_url,
+        sample_price_track,
+        sample_price_sfx,
+        sample_price_score,
+        turnaround_days,
+      } = body;
+
+      const { data, error } = await supabase
+        .from("ethos_artist_profiles")
+        .upsert(
+          {
+            user_id: userId,
+            skills: skills || [],
+            for_hire: for_hire !== false,
+            bio,
+            portfolio_url,
+            sample_price_track,
+            sample_price_sfx,
+            sample_price_score,
+            turnaround_days,
+          },
+          { onConflict: "user_id" },
+        )
+        .select();
+
+      if (error) throw error;
+      res.json(data[0]);
+    }
+  } catch (err: any) {
+    console.error("[Ethos Artists]", err);
+    res.status(500).json({ error: err.message });
+  }
+}
diff --git a/api/ethos/licensing-agreements.ts b/api/ethos/licensing-agreements.ts
new file mode 100644
index 00000000..d31f612d
--- /dev/null
+++ b/api/ethos/licensing-agreements.ts
@@ -0,0 +1,114 @@
+import { createClient } from "@supabase/supabase-js";
+
+const supabase = createClient(
+  process.env.VITE_SUPABASE_URL || "",
+  process.env.SUPABASE_SERVICE_ROLE || "",
+);
+
+export default async function handler(req: any, res: any) {
+  const { method, query, body, headers } = req;
+  const userId = headers["x-user-id"];
+
+  try {
+    if (method === "GET") {
+      if (!userId) return res.status(401).json({ error: "Unauthorized" });
+
+      const { trackId, status = "pending" } = query;
+
+      let dbQuery = supabase
+        .from("ethos_licensing_agreements")
+        .select(
+          `
+          id,
+          track_id,
+          licensee_id,
+          license_type,
+          agreement_url,
+          approved,
+          created_at,
+          expires_at,
+          ethos_tracks(title, user_id),
+          user_profiles(full_name, avatar_url)
+        `,
+          { count: "exact" },
+        );
+
+      if (trackId) {
+        dbQuery = dbQuery.eq("track_id", trackId);
+      }
+
+      if (status === "pending") {
+        dbQuery = dbQuery.eq("approved", false);
+      } else if (status === "approved") {
+        dbQuery = dbQuery.eq("approved", true);
+      }
+
+      const { data, error, count } = await dbQuery.order("created_at", {
+        ascending: false,
+      });
+
+      if (error) throw error;
+
+      res.json({
+        data,
+        total: count,
+      });
+    } else if (method === "POST") {
+      if (!userId) return res.status(401).json({ error: "Unauthorized" });
+
+      const { track_id, license_type, agreement_url, expires_at } = body;
+
+      if (!track_id || !license_type) {
+        return res.status(400).json({
+          error: "Missing required fields: track_id, license_type",
+        });
+      }
+
+      const { data, error } = await supabase
+        .from("ethos_licensing_agreements")
+        .insert([
+          {
+            track_id,
+            licensee_id: userId,
+            license_type,
+            agreement_url,
+            expires_at,
+            approved: false,
+          },
+        ])
+        .select();
+
+      if (error) throw error;
+      res.status(201).json(data[0]);
+    } else if (method === "PUT") {
+      if (!userId) return res.status(401).json({ error: "Unauthorized" });
+
+      const { id } = query;
+      const { approved } = body;
+
+      const { data, error } = await supabase
+        .from("ethos_licensing_agreements")
+        .update({ approved })
+        .eq("id", id)
+        .select();
+
+      if (error) throw error;
+      res.json(data[0]);
+    } else if (method === "DELETE") {
+      if (!userId) return res.status(401).json({ error: "Unauthorized" });
+
+      const { id } = query;
+
+      const { error } = await supabase
+        .from("ethos_licensing_agreements")
+        .delete()
+        .eq("id", id);
+
+      if (error) throw error;
+      res.json({ ok: true });
+    }
+  } catch (err: any) {
+    console.error("[Ethos Licensing]", err);
+    res.status(500).json({ error: err.message });
+  }
+}
diff --git a/api/ethos/tracks.ts b/api/ethos/tracks.ts
new file mode 100644
index 00000000..1b3f7946
--- /dev/null
+++ b/api/ethos/tracks.ts
@@ -0,0 +1,114 @@
+import { createClient } from "@supabase/supabase-js";
+
+const supabase = createClient(
+  process.env.VITE_SUPABASE_URL || "",
+  process.env.SUPABASE_SERVICE_ROLE || "",
+);
+
+interface TrackFilters {
+  genre?: string;
+  licenseType?: string;
+  artist?: string;
+  search?: string;
+  published?: boolean;
+}
+
+export default async function handler(req: any, res: any) {
+  const { method, query, body } = req;
+
+  try {
+    if (method === "GET") {
+      const {
+        limit = 50,
+        offset = 0,
+        genre,
+        licenseType,
+        artist,
+        search,
+      } = query;
+
+      let dbQuery = supabase
+        .from("ethos_tracks")
+        .select(
+          `
+          id,
+          user_id,
+          title,
+          description,
+          file_url,
+          duration_seconds,
+          genre,
+          license_type,
+          bpm,
+          is_published,
+          download_count,
+          created_at,
+          updated_at,
+          user_profiles(id, full_name, avatar_url)
+        `,
+          { count: "exact" },
+        )
+        .eq("is_published", true)
+        .order("created_at", { ascending: false });
+
+      if (genre) dbQuery = dbQuery.contains("genre", [genre]);
+      if (licenseType) dbQuery = dbQuery.eq("license_type", licenseType);
+      if (search) dbQuery = dbQuery.or(`title.ilike.%${search}%,description.ilike.%${search}%`);
+
+      const { data, error, count } = await dbQuery
+        .range(Number(offset), Number(offset) + Number(limit) - 1);
+
+      if (error) throw error;
+
+      res.json({
+        data,
+        total: count,
+        limit: Number(limit),
+        offset: Number(offset),
+      });
+    } else if (method === "POST") {
+      const userId = req.headers["x-user-id"];
+      if (!userId) return res.status(401).json({ error: "Unauthorized" });
+
+      const {
+        title,
+        description,
+        file_url,
+        duration_seconds,
+        genre,
+        license_type,
+        bpm,
+        is_published,
+      } = body;
+
+      if (!title || !file_url || !license_type) {
+        return res.status(400).json({
+          error: "Missing required fields: title, file_url, license_type",
+        });
+      }
+
+      const { data, error } = await supabase
+        .from("ethos_tracks")
+        .insert([
+          {
+            user_id: userId,
+            title,
+            description,
+            file_url,
+            duration_seconds,
+            genre: genre || [],
+            license_type,
+            bpm,
+            is_published: is_published !== false,
+          },
+        ])
+        .select();
+
+      if (error) throw error;
+      res.status(201).json(data[0]);
+    }
+  } catch (err: any) {
+    console.error("[Ethos Tracks]", err);
+    res.status(500).json({ error: err.message });
+  }
+}