diff --git a/packages/ccdi-openapi/src/api.rs b/packages/ccdi-openapi/src/api.rs
index c9013f2..ac5e232 100644
--- a/packages/ccdi-openapi/src/api.rs
+++ b/packages/ccdi-openapi/src/api.rs
@@ -51,6 +51,10 @@ a variety of query parameters.",
         (
             name = "Subject",
             description = "Subjects within the CCDI federated ecosystem."
+        ),
+        (
+            name = "Metadata",
+            description = "List and describe provided metadata fields."
         )
     ),
     paths(
@@ -86,10 +90,6 @@ a variety of query parameters.",
         models::subject::Kind,
         models::subject::Metadata,
 
-        models::metadata::field::Description,
-        models::metadata::field::description::Harmonized,
-        models::metadata::field::description::Unharmonized,
-
         // Counts.
         models::count::Total,
 
@@ -97,7 +97,6 @@ a variety of query parameters.",
         responses::Error,
         responses::Subject,
         responses::Subjects,
-        responses::metadata::FieldDescriptions,
     )),
     modifiers(&RemoveLicense)
 )]
diff --git a/packages/ccdi-server/src/routes/subject.rs b/packages/ccdi-server/src/routes/subject.rs
index 8f5c0ac..f230cb3 100644
--- a/packages/ccdi-server/src/routes/subject.rs
+++ b/packages/ccdi-server/src/routes/subject.rs
@@ -94,11 +94,11 @@ pub async fn index(subjects: Data<Store>) -> impl Responder {
     path = "/subject/{namespace}/{name}",
     params(
         (
-            "namespace",
+            "namespace" = String,
             description = "The namespace portion of the subject identifier.",
         ),
         (
-            "name",
+            "name" = String,
             description = "The name portion of the subject identifier."
         )
     ),
@@ -135,7 +135,7 @@ pub async fn show(path: Path<(String, String)>, subjects: Data<Store>) -> impl R
     get,
     path = "/subject/by/{field}/count",
     params(
-        ("field", description = "The field to group by and count."),
+        ("field" = String, description = "The field to group by and count."),
     ),
     tag = "Subject",
     responses(
diff --git a/swagger.yml b/swagger.yml
index 1733c63..5c91565 100644
--- a/swagger.yml
+++ b/swagger.yml
@@ -61,10 +61,14 @@ paths:
         in: path
         description: The namespace portion of the subject identifier.
         required: true
+        schema:
+          type: string
       - name: name
         in: path
         description: The name portion of the subject identifier.
         required: true
+        schema:
+          type: string
       responses:
         '200':
           description: Successful operation.
@@ -92,6 +96,8 @@ paths:
         in: path
         description: The field to group by and count.
         required: true
+        schema:
+          type: string
       responses:
         '200':
           description: Successful operation.
@@ -346,86 +352,6 @@ components:
           type: integer
           description: The total number of entities returned in the API call.
           minimum: 0
-    models.metadata.field.Description:
-      oneOf:
-      - $ref: '#/components/schemas/models.metadata.field.description.Harmonized'
-      - $ref: '#/components/schemas/models.metadata.field.description.Unharmonized'
-      description: A description for a metadata field.
-    models.metadata.field.description.Harmonized:
-      type: object
-      description: A harmonized metadata field description.
-      required:
-      - harmonized
-      - path
-      - standard
-      - url
-      properties:
-        harmonized:
-          type: boolean
-          description: |-
-            Whether or not this field is harmonized across the ecosystem.
-
-            This will always be set to `true`.
-          default: true
-        path:
-          type: string
-          description: |-
-            A comma (`.`) delimited path to the field's location on the `metadata`
-            objects returned by the various subject endpoints.
-        standard:
-          type: string
-          description: |-
-            The proper name of the standard to which this field is harmonized (defined
-            by the documentation for the CCDI metadata fields).
-        url:
-          type: string
-          description: |-
-            A URL to the CCDI documentation where the definition of this harmonized
-            field resides.
-    models.metadata.field.description.Unharmonized:
-      type: object
-      description: An unharmonized metadata field description.
-      required:
-      - harmonized
-      - path
-      properties:
-        harmonized:
-          type: boolean
-          description: |-
-            Whether or not this field is harmonized across the ecosystem.
-
-            This will always be set to `false`.
-          default: false
-        name:
-          type: string
-          description: |-
-            A display name for this metadata field as _suggested_ by the server (this
-            is not considered authoritative and can be ignored by the client if it so
-            chooses). This is mainly to avoid naming collisions of common fields across
-            servers.
-          nullable: true
-        description:
-          type: string
-          description: A plain-text description of what the field represents.
-          nullable: true
-        path:
-          type: string
-          description: |-
-            A comma (`.`) delimited path to the field's location on the `metadata`
-            objects returned by the various subject endpoints.
-        standard:
-          type: string
-          description: |-
-            If the field is considered harmonized across the federation ecosystem, the
-            name of the standard to which the field is harmonized.
-
-            If the field is _not_ harmonized across the federation ecosystem, then this
-            should be [`None`].
-          nullable: true
-        url:
-          type: string
-          description: A url that describes more about the metadata field, if available.
-          nullable: true
     models.subject.Kind:
       type: string
       description: A kind of [`Subject`](super::Subject).
@@ -486,22 +412,13 @@ components:
             $ref: '#/components/schemas/models.Subject'
           description: The subjects, if available.
           nullable: true
-    responses.metadata.FieldDescriptions:
-      type: object
-      description: A response for describing metadata fields for a subject.
-      required:
-      - fields
-      properties:
-        fields:
-          type: array
-          items:
-            $ref: '#/components/schemas/models.metadata.field.Description'
-          description: Field descriptions.
 tags:
 - name: Info
   description: Information about the API implementation itself.
 - name: Subject
   description: Subjects within the CCDI federated ecosystem.
+- name: Metadata
+  description: List and describe provided metadata fields.
 externalDocs:
   url: https://www.cancer.gov/research/areas/childhood/childhood-cancer-data-initiative
   description: Learn more about the Childhood Cancer Data Initiative