diff --git a/pkg/api/flamenco-openapi.yaml b/pkg/api/flamenco-openapi.yaml
index 856bff70..e717e524 100644
--- a/pkg/api/flamenco-openapi.yaml
+++ b/pkg/api/flamenco-openapi.yaml
@@ -650,6 +650,36 @@ paths:
             application/json:
               schema: { $ref: "#/components/schemas/Error" }
 
+  /api/v3/jobs/check:
+    summary: Check the job for validity, without creating it.
+    post:
+      operationId: submitJobCheck
+      summary: Submit a new job for Flamenco Manager to check.
+      tags: [jobs]
+      requestBody:
+        description: Job to check
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: "#/components/schemas/SubmittedJob"
+      responses:
+        "204":
+          description: Job was succesfully compiled into individual tasks. The job and tasks have NOT been stored in the database, though.
+        "412":
+          description: >
+            The given job type etag does not match the job type etag on the
+            Manager. This is likely due to the client caching the job type for
+            too long.
+          content:
+            application/json:
+              schema: { $ref: "#/components/schemas/Error" }
+        default:
+          description: Error message
+          content:
+            application/json:
+              schema: { $ref: "#/components/schemas/Error" }
+
   /api/v3/jobs/query:
     summary: Obtain jobs with filtering and sorting.
     post: