diff --git a/swh/web/ui/converters.py b/swh/web/ui/converters.py
--- a/swh/web/ui/converters.py
+++ b/swh/web/ui/converters.py
@@ -165,6 +165,7 @@
     return from_swh(revision,
                     hashess=set(['id', 'directory', 'parents', 'children']),
                     bytess=set(['name',
+                                'fullname',
                                 'email',
                                 'message']),
                     dates={'date', 'committer_date'})
diff --git a/swh/web/ui/tests/views/test_api.py b/swh/web/ui/tests/views/test_api.py
--- a/swh/web/ui/tests/views/test_api.py
+++ b/swh/web/ui/tests/views/test_api.py
@@ -716,6 +716,119 @@
 
     @patch('swh.web.ui.views.api.service')
     @istest
+    def api_revision_raw_ok(self, mock_service):
+        # given
+        stub_revision = {
+            'id': '18d8be353ed3480476f032475e7c233eff7371d5',
+            'directory': '7834ef7e7c357ce2af928115c6c6a42b7e2a44e6',
+            'author_name': 'Software Heritage',
+            'author_email': 'robot@softwareheritage.org',
+            'committer_name': 'Software Heritage',
+            'committer_email': 'robot@softwareheritage.org',
+            'message': 'synthetic revision message',
+            'date_offset': 0,
+            'committer_date_offset': 0,
+            'parents': ['8734ef7e7c357ce2af928115c6c6a42b7e2a44e7'],
+            'type': 'tar',
+            'synthetic': True,
+            'metadata': {
+                'original_artifact': [{
+                    'archive_type': 'tar',
+                    'name': 'webbase-5.7.0.tar.gz',
+                    'sha1': '147f73f369733d088b7a6fa9c4e0273dcd3c7ccd',
+                    'sha1_git': '6a15ea8b881069adedf11feceec35588f2cfe8f1',
+                    'sha256': '401d0df797110bea805d358b85bcc1ced29549d3d73f'
+                    '309d36484e7edf7bb912'
+                }]
+            },
+        }
+
+        mock_service.lookup_revision.return_value = stub_revision
+
+        # when
+        rv = self.app.get('/api/1/revision/'
+                          '18d8be353ed3480476f032475e7c233eff7371d5/raw/')
+
+        # then
+        self.assertEquals(rv.status_code, 200)
+        self.assertEquals(rv.mimetype, 'application/json')
+
+        response_data = json.loads(rv.data.decode('utf-8'))
+        self.assertEquals(response_data,
+                          {'message': 'synthetic revision message'})
+
+        mock_service.lookup_revision.assert_called_once_with(
+            '18d8be353ed3480476f032475e7c233eff7371d5')
+
+    @patch('swh.web.ui.views.api.service')
+    @istest
+    def api_revision_raw_ko_no_msg(self, mock_service):
+        # given
+        stub_revision = {
+            'id': '18d8be353ed3480476f032475e7c233eff7371d5',
+            'directory': '7834ef7e7c357ce2af928115c6c6a42b7e2a44e6',
+            'author_name': 'Software Heritage',
+            'author_email': 'robot@softwareheritage.org',
+            'committer_name': 'Software Heritage',
+            'committer_email': 'robot@softwareheritage.org',
+            'date_offset': 0,
+            'committer_date_offset': 0,
+            'parents': ['8734ef7e7c357ce2af928115c6c6a42b7e2a44e7'],
+            'type': 'tar',
+            'synthetic': True,
+            'metadata': {
+                'original_artifact': [{
+                    'archive_type': 'tar',
+                    'name': 'webbase-5.7.0.tar.gz',
+                    'sha1': '147f73f369733d088b7a6fa9c4e0273dcd3c7ccd',
+                    'sha1_git': '6a15ea8b881069adedf11feceec35588f2cfe8f1',
+                    'sha256': '401d0df797110bea805d358b85bcc1ced29549d3d73f'
+                    '309d36484e7edf7bb912'
+                }]
+            },
+        }
+
+        mock_service.lookup_revision.return_value = stub_revision
+
+        # when
+        rv = self.app.get('/api/1/revision/'
+                          '18d8be353ed3480476f032475e7c233eff7371d5/raw/')
+
+        # then
+        self.assertEquals(rv.status_code, 404)
+        self.assertEquals(rv.mimetype, 'application/json')
+
+        response_data = json.loads(rv.data.decode('utf-8'))
+        self.assertEquals(response_data, {
+            'error': 'No message for revision with sha1_git '
+            '18d8be353ed3480476f032475e7c233eff7371d5.'})
+
+        mock_service.lookup_revision.assert_called_once_with(
+            '18d8be353ed3480476f032475e7c233eff7371d5')
+
+    @patch('swh.web.ui.views.api.service')
+    @istest
+    def api_revision_raw_ko_no_rev(self, mock_service):
+        # given
+        mock_service.lookup_revision.side_effect = NotFoundExc('not found')
+
+        # when
+        rv = self.app.get('/api/1/revision/'
+                          '18d8be353ed3480476f032475e7c233eff7371d5/raw/')
+
+        # then
+        self.assertEquals(rv.status_code, 404)
+        self.assertEquals(rv.mimetype, 'application/json')
+
+        response_data = json.loads(rv.data.decode('utf-8'))
+        self.assertEquals(response_data, {
+            'error': 'not found'})
+
+        mock_service.lookup_revision.assert_called_once_with(
+            '18d8be353ed3480476f032475e7c233eff7371d5')
+
+    @patch('swh.web.ui.views.api.service')
+    @istest
     def api_revision_with_origin_not_found(self, mock_service):
         mock_service.lookup_revision_by.return_value = None
 
diff --git a/swh/web/ui/views/api.py b/swh/web/ui/views/api.py
--- a/swh/web/ui/views/api.py
+++ b/swh/web/ui/views/api.py
@@ -492,6 +492,36 @@
         enrich_fn=utils.enrich_revision)
 
 
+@app.route('/api/1/revision/<string:sha1_git>/raw/')
+def api_revision_raw_message(sha1_git):
+    """Return the raw data of the revision's message
+
+    Args:
+        sha1_git: the revision's hash
+
+    Returns:
+        The raw revision message, possibly in an illegible
+        format for humans, decoded in utf-8 by default.
+
+    Raises:
+        BadInputExc in case of unknown algo_hash or bad hash.
+        NotFoundExc if the revision is not found or the revision has no
+        message
+
+    Example:
+        GET /api/1/revision/baf18f9fc50a0b6fef50460a76c33b2ddc57486e/raw/
+
+    """
+
+    rev = api_revision(sha1_git)
+    if 'message' in rev:
+        return {'message': rev['message']}
+    else:
+        raise NotFoundExc('No message for revision with sha1_git %s.'
+                          % sha1_git)
+    # TODO: can do better than same as api_revision?
+
+
 @app.route('/api/1/revision/<string:sha1_git>/directory/')
 @app.route('/api/1/revision/<string:sha1_git>/directory/<path:dir_path>/')
 def api_revision_directory(sha1_git,