diff --git a/package-lock.json b/package-lock.json
index f4cc13e..e577b88 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -12,7 +12,8 @@
         "koa": "^2.13.4",
         "koa-bodyparser": "^4.3.0",
         "koa-router": "^10.1.1",
-        "promise-mysql": "^5.0.4"
+        "promise-mysql": "^5.0.4",
+        "uuid": "^8.3.2"
       }
     },
     "node_modules/@types/bluebird": {
@@ -686,6 +687,14 @@
       "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
       "integrity": "sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8="
     },
+    "node_modules/uuid": {
+      "version": "8.3.2",
+      "resolved": "https://registry.npmjs.org/uuid/-/uuid-8.3.2.tgz",
+      "integrity": "sha512-+NYs2QeMWy+GWFOEm9xnn6HCDp0l7QBD7ml8zLUmJ+93Q5NF0NocErnwkTkXVFNiX3/fpC6afS8Dhb/gz7R7eg==",
+      "bin": {
+        "uuid": "dist/bin/uuid"
+      }
+    },
     "node_modules/vary": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/vary/-/vary-1.1.2.tgz",
@@ -1221,6 +1230,11 @@
       "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
       "integrity": "sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8="
     },
+    "uuid": {
+      "version": "8.3.2",
+      "resolved": "https://registry.npmjs.org/uuid/-/uuid-8.3.2.tgz",
+      "integrity": "sha512-+NYs2QeMWy+GWFOEm9xnn6HCDp0l7QBD7ml8zLUmJ+93Q5NF0NocErnwkTkXVFNiX3/fpC6afS8Dhb/gz7R7eg=="
+    },
     "vary": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/vary/-/vary-1.1.2.tgz",
diff --git a/package.json b/package.json
index f72da13..ea83c23 100644
--- a/package.json
+++ b/package.json
@@ -16,6 +16,7 @@
     "koa": "^2.13.4",
     "koa-bodyparser": "^4.3.0",
     "koa-router": "^10.1.1",
-    "promise-mysql": "^5.0.4"
+    "promise-mysql": "^5.0.4",
+    "uuid": "^8.3.2"
   }
 }
diff --git a/schemas/user.json b/schemas/user.json
new file mode 100644
index 0000000..b571f44
--- /dev/null
+++ b/schemas/user.json
@@ -0,0 +1,170 @@
+"$schema": "http://json-schema.org/draft-07/schema#",
+  "definitions": {
+
+    
+    "user": {
+      "$id": "#user",
+      "title": "User",
+      "description": "Data to register a new user.",
+      "type": "object",
+      "properties": {
+        "firstName": {
+          "description": "First name",
+          "type": "string"
+        },
+        "lastName": {
+          "description": "Last name",
+          "type": "string"
+        },
+        "about": {
+          "description": "Description of the user",
+          "type": "string"
+        },
+        "email": {
+          "description": "Unique email address",
+          "type": "string",
+          "format": "email"
+        },
+        "avatarURL": {
+          "description": "URL of avatar image",
+          "type": "string",
+          "format": "uri"
+        },
+        "username": {
+          "description": "Unique username",
+          "type": "string",
+          "minLength": 3
+        },
+        "password": {
+          "description": "Password for registration",
+          "type": "string",
+          "minLength": 6
+        }
+      },
+      "required": ["username", "email", "password"],
+      "additionalProperties": false
+    },
+
+    
+    "userView": {
+      "$id": "#userView",
+      "title": "User View",
+      "description": "Data visible to users and admins (excludes password).",
+      "type": "object",
+      "properties": {
+        "firstName": {
+          "description": "First name",
+          "type": "string"
+        },
+        "lastName": {
+          "description": "Last name",
+          "type": "string"
+        },
+        "about": {
+          "description": "Description of the user",
+          "type": "string"
+        },
+        "email": {
+          "description": "Unique email address",
+          "type": "string"
+        },
+        "avatarURL": {
+          "description": "URL of avatar image",
+          "type": "string"
+        },
+        "username": {
+          "description": "Unique username",
+          "type": "string"
+        }
+      }
+    },
+    
+    
+    "userUpdate": {
+      "$id": "#userUpdate",
+      "title": "User Update",
+      "description": "Data a user can update (excludes username).",
+      "type": "object",
+      "properties": {
+        "firstName": {
+          "description": "First name",
+          "type": "string"
+        },
+        "lastName": {
+          "description": "Last name",
+          "type": "string"
+        },
+        "about": {
+          "description": "Description of the user",
+          "type": "string"
+        },
+        "email": {
+          "description": "Unique email address",
+          "type": "string",
+          "format": "email"
+        },
+        "avatarURL": {
+          "description": "URL of avatar image",
+          "type": "string",
+          "format": "uri"
+        },
+        "password": {
+          "description": "Password for registration",
+          "type": "string",
+          "minLength": 6
+        }
+      },
+      "additionalProperties": false
+    },
+    
+    
+    "userList": {
+      "$id": "#userList",
+      "title": "User List",
+      "description": "List of all users visible to admin only.",
+      "type": "array",
+      "items": {"$ref": "#/definitions/userView"}
+    },
+    
+    
+    "userUpdated": {
+      "$id": "#userUpdated",
+      "title": "User Updated",
+      "description": "Confirmation of a successful user update/creation",
+      "type": "object",
+      "properties": {
+        "ID": {
+          "description": "ID of the updated user record",
+          "type": "integer"
+        },
+        "updated": {
+          "description": "Boolean indicator of success",
+          "type": "boolean"
+        },
+        "link": {
+          "description": "Path to retrieve user record",
+          "type": "string",
+          "format": "uri"
+        }
+      }
+    },
+    
+    
+    "userDeleted": {
+      "$id": "#userDeleted",
+      "title": "User Deleted",
+      "description": "Confirmation of a successful deletion",
+      "type": "object",
+      "properties": {
+        "ID": {
+          "description": "ID of the updated user record",
+          "type": "integer"
+        },
+        "deleted": {
+          "description": "Boolean indicator of success",
+          "type": "boolean"
+        }
+      }
+    }
+  }
+}