diff --git a/README.md b/README.md
index e4c1ad8..879fc0f 100644
--- a/README.md
+++ b/README.md
@@ -12,6 +12,7 @@ The YAML file includes details for multiple objects (PT, YT, LP), each correspon
 
  - name: The name of the protocol.
  - icon: The protocol’s logo (circular logo in PNG). The string on this field should be the same as the name of the logo file uploaded. Size limit for logo is 20KB.
+ - category: The protocol's category. It must belong to one of the following categories: `money market`, `vault` or `liquid locker`. If no category is specified, the protocol will automatically default to the `others` type.
  - metadata: This section contains detailed information about the protocol's integration assets.
 
 #### Asset fields
@@ -25,6 +26,7 @@ The YAML file includes details for multiple objects (PT, YT, LP), each correspon
 ```yaml
 name: Protocol Name 2
 icon: logo.png
+category: 'vault'
 metadata:
   pt:
     - chainId: 1
diff --git a/const.js b/const.js
new file mode 100644
index 0000000..3e4a291
--- /dev/null
+++ b/const.js
@@ -0,0 +1,7 @@
+const DEFAULT_PROTOCOL_CATEGORY = 'others';
+const PROTOCOL_CATEGORIES = ['money market', 'vault', 'liquid locker'];
+
+module.exports = {
+  DEFAULT_PROTOCOL_CATEGORY,
+  PROTOCOL_CATEGORIES,
+}
\ No newline at end of file
diff --git a/merge-config.js b/merge-config.js
index b02265e..c3df586 100644
--- a/merge-config.js
+++ b/merge-config.js
@@ -2,6 +2,7 @@ const fs = require('fs');
 const path = require('path');
 const crypto = require('crypto');
 const yaml = require("js-yaml");
+const {DEFAULT_PROTOCOL_CATEGORY} = require("./const");
 
 async function run() {
   const protocolsPath = path.join(__dirname, 'protocols');
@@ -51,19 +52,35 @@ async function run() {
 }
 
 function formatProtocolConfig(config) {
-  const {metadata} = config;
+  const {id, name, icon, category, metadata} = config;
   const {pt, yt, lp} = metadata;
-  lowercaseAddressOfMetadata(pt);
-  lowercaseAddressOfMetadata(yt);
-  lowercaseAddressOfMetadata(lp);
 
-  return config;
+  return {
+    id,
+    name,
+    icon,
+    category: category ?? DEFAULT_PROTOCOL_CATEGORY,
+    metadata: {
+      pt: formatMetadataAssets(pt),
+      yt: formatMetadataAssets(yt),
+      lp: formatMetadataAssets(lp),
+    },
+  };
 }
 
-function lowercaseAddressOfMetadata(assets) {
+function formatMetadataAssets(assets) {
+  const result = [];
   for (const asset of (assets ?? [])) {
-    asset.address = asset.address.toLowerCase();
+    const {chainId, address, integrationUrl, description} = asset;
+    result.push({
+      chainId,
+      address: address.toLowerCase(),
+      integrationUrl,
+      description,
+    })
   }
+
+  return result;
 }
 
 function createMD5(filePath) {
diff --git a/validate-config.js b/validate-config.js
index 7495c34..f67308e 100644
--- a/validate-config.js
+++ b/validate-config.js
@@ -1,6 +1,7 @@
 const fs = require('fs');
 const path = require('path');
 const yaml = require('js-yaml');
+const {PROTOCOL_CATEGORIES} = require("./const");
 
 const LIMIT_ICON_KB_SIZE = 20;
 const BUFFER_LIMIT_ICON_KB_SIZE = LIMIT_ICON_KB_SIZE + 1;
@@ -15,6 +16,16 @@ function isKebabCase(str) {
   return kebabCaseRegex.test(str);
 }
 
+function validateCategory(protocol, category) {
+  if (category === undefined) {
+    return;
+  }
+
+  if (!mustBeNonEmptyString(category) || !PROTOCOL_CATEGORIES.includes(category)) {
+    throw new Error(`protocol ${protocol}: invalid field 'category', category must be one of the values (${PROTOCOL_CATEGORIES.join(', ')}) or left unset`);
+  }
+}
+
 async function main() {
   const CHANGED_PROTOCOLS = process.env.CHANGED_PROTOCOLS;
   const GET_ASSET_LIST_URL = process.env.GET_ASSET_LIST_URL;
@@ -81,12 +92,14 @@ function validateConfig(protocol, assetMap) {
     throw new Error(`protocol ${protocol}: config is not an object`);
   }
 
-  const {name, icon, metadata} = protocolConfig;
+  const {name, icon, metadata, category} = protocolConfig;
 
   if (!mustBeNonEmptyString(name)) {
     throw new Error(`protocol ${protocol}: invalid field 'name'`);
   }
 
+  validateCategory(protocol, category);
+
   if (!mustBeNonEmptyString(icon)) {
     throw new Error(`protocol ${protocol}: invalid field 'icon'`);
   }
@@ -113,7 +126,6 @@ function validateConfig(protocol, assetMap) {
     throw new Error(`protocol ${protocol}: icon size must be less than ${LIMIT_ICON_KB_SIZE}KB file`);
   }
 
-
   const {pt, yt, lp} = metadata;
   checkMetadataField(pt, protocol, 'pt', ptMap);
   checkMetadataField(yt, protocol, 'yt', ytMap);