Rename API method categories

content/references/http-websocket-apis/public-api-methods/utility-methods/json.md

@@ -0,0 +1,50 @@
+---
+html: json.html
+parent: utility-methods.html
+blurb: Pass JSON through the commandline.
+labels:
+  - Core Server
+---
+# json
+
+The `json` method is a proxy to running other commands, and accepts the parameters for the command as a JSON value. It is *exclusive to the Commandline client*, and intended for cases where the commandline syntax for specifying parameters is inadequate or undesirable.
+
+## Request Format
+An example of the request format:
+
+<!-- MULTICODE_BLOCK_START -->
+
+*Commandline*
+
+```sh
+# Syntax: json method json_stanza
+rippled -q json ledger_closed '{}'
+```
+
+<!-- MULTICODE_BLOCK_END -->
+
+## Response Format
+
+An example of a successful response:
+
+<!-- MULTICODE_BLOCK_START -->
+
+*WebSocket*
+
+```json
+{
+   "result" : {
+      "ledger_hash" : "8047C3ECF1FA66326C1E57694F6814A1C32867C04D3D68A851367EE2F89BBEF3",
+      "ledger_index" : 390308,
+      "status" : "success"
+   }
+}
+```
+
+<!-- MULTICODE_BLOCK_END -->
+
+The response follows the [standard format][], with whichever fields are appropriate to the type of command made.
+
+
+{% include '_snippets/rippled_versions.md' %}
+{% include '_snippets/rippled-api-links.md' %}