diff --git a/app/__init__.py b/app/__init__.py
index 1bae233cd..19d889744 100644
--- a/app/__init__.py
+++ b/app/__init__.py
@@ -807,6 +807,7 @@ def add_template_filters(application):
         format_notification_status_as_url,
         format_number_in_pounds_as_currency,
         formatters.formatted_list,
+        formatters.normalise_lines,
         nl2br,
         format_phone_number_human_readable,
         format_thousands,
diff --git a/app/templates/views/api/keys/show.html b/app/templates/views/api/keys/show.html
index f9012afff..44765a387 100644
--- a/app/templates/views/api/keys/show.html
+++ b/app/templates/views/api/keys/show.html
@@ -24,7 +24,8 @@
 
       {{ api_key(
         '{}-{}-{}'.format(key_name, service_id, secret),
-        'API key'
+        name='API key',
+        thing='API key'
       ) }}
 
       {{ page_footer(
diff --git a/app/templates/views/service-settings/email_reply_to.html b/app/templates/views/service-settings/email_reply_to.html
index 201ef3013..60c88d6bb 100644
--- a/app/templates/views/service-settings/email_reply_to.html
+++ b/app/templates/views/service-settings/email_reply_to.html
@@ -34,7 +34,7 @@
           <a class="govuk-link govuk-link--no-visited-state user-list-edit-link" href="{{ url_for('.service_edit_email_reply_to', service_id =current_service.id, reply_to_email_id = item.id) }}">Change</a>
         {% endif %}
         {% if current_service.count_email_reply_to_addresses > 1 %}
-          {{ api_key(item.id, item.email_address, thing="ID", heading=False) }}
+          {{ api_key(item.id, name=item.email_address, thing="ID") }}
         {% endif %}
       </div>
     {% endfor %}
diff --git a/app/templates/views/service-settings/letter-contact-details.html b/app/templates/views/service-settings/letter-contact-details.html
index 08f32436b..0cf921156 100644
--- a/app/templates/views/service-settings/letter-contact-details.html
+++ b/app/templates/views/service-settings/letter-contact-details.html
@@ -43,7 +43,8 @@
         <a class="govuk-link govuk-link--no-visited-state user-list-edit-link" href="{{ url_for('.service_edit_letter_contact', service_id =current_service.id, letter_contact_id = item.id) }}">Change</a>
         {% endif %}
         {% if letter_contact_details|length  > 1 %}
-          {{ api_key(item.id, thing="ID") }}
+          {% set first_line_of_contact_block = item.contact_block|normalise_lines|first %}
+          {{ api_key(item.id, name=first_line_of_contact_block, thing="ID") }}
         {% endif %}
       </div>
     {% endfor %}
diff --git a/app/templates/views/service-settings/sms-senders.html b/app/templates/views/service-settings/sms-senders.html
index 097a254de..aa7d9806f 100644
--- a/app/templates/views/service-settings/sms-senders.html
+++ b/app/templates/views/service-settings/sms-senders.html
@@ -36,7 +36,7 @@
           <a class="govuk-link govuk-link--no-visited-state user-list-edit-link" href="{{ url_for('.service_edit_sms_sender', service_id=current_service.id, sms_sender_id = item.id) }}">Change</a>
         {% endif %}
         {% if current_service.count_sms_senders > 1 %}
-          {{ api_key(item.id, thing="ID") }}
+          {{ api_key(item.id, name=item.sms_sender, thing="ID") }}
         {% endif %}
       </div>
     {% endfor %}