diff --git a/swh/web/api/views/origin.py b/swh/web/api/views/origin.py
--- a/swh/web/api/views/origin.py
+++ b/swh/web/api/views/origin.py
@@ -432,3 +432,43 @@
         enrich_fn=partial(_enrich_origin_visit,
                           with_origin_url=True,
                           with_origin_visit_url=False))
+
+
+@api_route(r'/origin/(?P<origin_id>[0-9]+)/metadata',
+           'api-origin-metdata-get')
+@api_doc('/origin/')
+def api_origin_metadata_get(request, origin_id, visit_id):
+    """
+    .. http:get:: /api/1/origin/(origin_id)/metadata
+
+        Get metadata of a software origin.
+
+        :param int origin_id: a software origin identifier
+
+        :reqheader Accept: the requested response content type,
+            either ``application/json`` (default) or ``application/yaml``
+        :resheader Content-Type: this depends on :http:header:`Accept` header of request
+
+        :>jsonarr number origin_id: the origin unique identifier
+        :>jsonarr dict metadata: metadata of the origin (as a JSON-LD/CodeMeta dictionary)
+        :>jsonarr string from_revision: the revision used to extract these
+            metadata (the current HEAD or one of the former HEADs)
+        :>jsonarr dict tool: the tool used to extract these metadata
+
+        **Allowed HTTP Methods:** :http:method:`get`, :http:method:`head`, :http:method:`options`
+
+        :statuscode 200: no error
+        :statuscode 404: requested origin or visit can not be found in the archive
+
+        **Example:**
+
+        .. parsed-literal::
+
+            :swh_web_api:`origin/1500/metadata`
+    """ # noqa
+    origin_ids = [int(origin_id)]
+    results = api_lookup(service.lookup_origin_metadata, origin_ids)
+
+    return {
+        'results': results,
+    }
diff --git a/swh/web/common/service.py b/swh/web/common/service.py
--- a/swh/web/common/service.py
+++ b/swh/web/common/service.py
@@ -289,6 +289,27 @@
     return results
 
 
+def lookup_origin_metadata(origin_ids):
+    """Search for origins whose origin_id matches given origin_id.
+
+    Args:
+        origin_id: unique identifier for a origin
+
+    Returns:
+        list of origin metadata.
+
+    """
+    matches = idx_storage.origin_metadata_get_by(origin_ids)
+    results = []
+    for match in matches:
+        match['from_revision'] = hashutil.hash_to_hex(match['from_revision'])
+        result = converters.from_origin(
+            storage.origin_get({'id': match.pop('id')}))
+        result['metadata'] = match
+        results.append(result)
+    return results
+
+
 def lookup_person(person_id):
     """Return information about the person with id person_id.