diff --git a/custom_components/bahmcloud_store/providers.py b/custom_components/bahmcloud_store/providers.py
index ca2007f..ccb005f 100644
--- a/custom_components/bahmcloud_store/providers.py
+++ b/custom_components/bahmcloud_store/providers.py
@@ -504,4 +504,160 @@ async def fetch_readme_markdown(
         except Exception:
             continue
 
-    return None
\ No newline at end of file
+    return None
+
+
+async def fetch_repo_versions(
+    hass: HomeAssistant,
+    repo_url: str,
+    *,
+    provider: str | None = None,
+    default_branch: str | None = None,
+    limit: int = 20,
+) -> list[dict[str, str]]:
+    """List available versions/refs for a repository.
+
+    Returns a list of dicts with keys:
+      - ref: the ref to install (tag/release/branch)
+      - label: human-friendly label
+      - source: release|tag|branch
+
+    Notes:
+    - Uses public endpoints (no tokens) for public repositories.
+    - We prefer releases first (if available), then tags.
+    """
+
+    repo_url = (repo_url or "").strip()
+    if not repo_url:
+        return []
+
+    prov = (provider or "").strip().lower() if provider else ""
+    if not prov:
+        prov = detect_provider(repo_url)
+
+    owner, repo = _split_owner_repo(repo_url)
+    if not owner or not repo:
+        return []
+
+    session = async_get_clientsession(hass)
+    headers = {"User-Agent": UA}
+
+    out: list[dict[str, str]] = []
+    seen: set[str] = set()
+
+    def _add(ref: str | None, label: str, source: str) -> None:
+        r = (ref or "").strip()
+        if not r or r in seen:
+            return
+        seen.add(r)
+        out.append({"ref": r, "label": label, "source": source})
+
+    # Always offer default branch as an explicit option.
+    if default_branch and str(default_branch).strip():
+        b = str(default_branch).strip()
+        _add(b, f"Branch: {b}", "branch")
+
+    try:
+        if prov == "github":
+            # Releases
+            gh_headers = {"Accept": "application/vnd.github+json", "User-Agent": UA}
+            data, _ = await _safe_json(
+                session,
+                f"https://api.github.com/repos/{owner}/{repo}/releases?per_page={int(limit)}",
+                headers=gh_headers,
+            )
+            if isinstance(data, list):
+                for r in data:
+                    if not isinstance(r, dict):
+                        continue
+                    tag = r.get("tag_name")
+                    name = r.get("name")
+                    if tag:
+                        lbl = str(tag)
+                        if isinstance(name, str) and name.strip() and name.strip() != str(tag):
+                            lbl = f"{tag} — {name.strip()}"
+                        _add(str(tag), lbl, "release")
+
+            # Tags
+            data, _ = await _safe_json(
+                session,
+                f"https://api.github.com/repos/{owner}/{repo}/tags?per_page={int(limit)}",
+                headers=gh_headers,
+            )
+            if isinstance(data, list):
+                for t in data:
+                    if isinstance(t, dict) and t.get("name"):
+                        _add(str(t["name"]), str(t["name"]), "tag")
+
+            return out
+
+        if prov == "gitlab":
+            u = urlparse(repo_url.rstrip("/"))
+            base = f"{u.scheme}://{u.netloc}"
+            project = quote_plus(f"{owner}/{repo}")
+
+            data, _ = await _safe_json(
+                session,
+                f"{base}/api/v4/projects/{project}/releases?per_page={int(limit)}",
+                headers=headers,
+            )
+            if isinstance(data, list):
+                for r in data:
+                    if not isinstance(r, dict):
+                        continue
+                    tag = r.get("tag_name")
+                    name = r.get("name")
+                    if tag:
+                        lbl = str(tag)
+                        if isinstance(name, str) and name.strip() and name.strip() != str(tag):
+                            lbl = f"{tag} — {name.strip()}"
+                        _add(str(tag), lbl, "release")
+
+            data, _ = await _safe_json(
+                session,
+                f"{base}/api/v4/projects/{project}/repository/tags?per_page={int(limit)}",
+                headers=headers,
+            )
+            if isinstance(data, list):
+                for t in data:
+                    if isinstance(t, dict) and t.get("name"):
+                        _add(str(t["name"]), str(t["name"]), "tag")
+
+            return out
+
+        # gitea (incl. Bahmcloud)
+        u = urlparse(repo_url.rstrip("/"))
+        base = f"{u.scheme}://{u.netloc}"
+
+        data, _ = await _safe_json(
+            session,
+            f"{base}/api/v1/repos/{owner}/{repo}/releases?limit={int(limit)}",
+            headers=headers,
+        )
+        if isinstance(data, list):
+            for r in data:
+                if not isinstance(r, dict):
+                    continue
+                tag = r.get("tag_name")
+                name = r.get("name")
+                if tag:
+                    lbl = str(tag)
+                    if isinstance(name, str) and name.strip() and name.strip() != str(tag):
+                        lbl = f"{tag} — {name.strip()}"
+                    _add(str(tag), lbl, "release")
+
+        data, _ = await _safe_json(
+            session,
+            f"{base}/api/v1/repos/{owner}/{repo}/tags?limit={int(limit)}",
+            headers=headers,
+        )
+        if isinstance(data, list):
+            for t in data:
+                if isinstance(t, dict) and t.get("name"):
+                    _add(str(t["name"]), str(t["name"]), "tag")
+
+        return out
+
+    except Exception:
+        _LOGGER.debug("fetch_repo_versions failed for %s", repo_url, exc_info=True)
+        return out
\ No newline at end of file