diff --git a/_includes/header.html b/_includes/header.html
index f43ac8d..ae5482e 100755
--- a/_includes/header.html
+++ b/_includes/header.html
@@ -65,7 +65,8 @@
                             <li {% if current[1] == 'documentation' %}class="current"{% endif %}><a href="{{ site.baseurl }}/documentation">Documentation</a>
                                 <ul>
                                         <li><a href="{{ side.baseurl }}/compliance/">Legal and policy compliance</a></li>
-					<li><a href="{{ site.baseurl }}/research-projects/">Research projects</a></li>
+					                    <li><a href="{{ site.baseurl }}/research-projects/">Research projects</a></li>
+					                    <li><a href="{{ site.baseurl }}/documentation/openapi">OpenAPI spec</a></li>
                                 </ul>
                             </li>
                             <li {% if current[1] == 'tools' %}class="current"{% endif %}><a href="{{ site.baseurl }}/tools">Tools</a></li>
diff --git a/_pages/documentation.md b/_pages/documentation.md
index 180c4d2..da26c6d 100755
--- a/_pages/documentation.md
+++ b/_pages/documentation.md
@@ -35,6 +35,9 @@ other developers willing to develop their own tools or software supporting the M
 * [misp-galaxy-format](https://github.com/MISP/misp-rfc/blob/master/misp-galaxy-format/raw.md.txt) which describes the [galaxy](https://github.com/MISP/misp-galaxy) template format used to expand the threat actor modelling of MISP. Current Internet-Draft: [05](https://datatracker.ietf.org/doc/draft-dulaunoy-misp-galaxy-format/)
 * [misp-object-template-format](https://github.com/MISP/misp-rfc/blob/master/misp-object-template-format/raw.md.txt) which describes the [object](https://github.com/MISP/misp-objects) template format to add combined and composite object to the MISP core format. Current Internet-Draft: [02](https://datatracker.ietf.org/doc/draft-dulaunoy-misp-object-template-format/)
 
+### MISP OpenAPI Spec
+MISP API OpenAPI spec available is [here](/documentation/openapi).
+
 ## Community Support
 
 If you have any issues with MISP core software, [the issue tracking of MISP](https://github.com/MISP/MISP/issues) is handled in GitHub.
diff --git a/_pages/openapi.md b/_pages/openapi.md
new file mode 100644
index 0000000..f8889ab
--- /dev/null
+++ b/_pages/openapi.md
@@ -0,0 +1,8 @@
+---
+title: MISP OpenAPI spec
+permalink: /documentation/openapi
+layout: default
+---
+
+<redoc spec-url='https://raw.githubusercontent.com/MISP/MISP/develop/app/webroot/doc/openapi.yaml'></redoc>
+<script src="https://cdn.jsdelivr.net/npm/redoc@next/bundles/redoc.standalone.js"> </script>
\ No newline at end of file