diff --git a/package.json b/package.json
index 34774d0..1c053d3 100644
--- a/package.json
+++ b/package.json
@@ -36,7 +36,8 @@
     "lodash.get": "^4.4.2",
     "lodash.merge": "^4.6.0",
     "lodash.set": "^4.3.2",
-    "node-fetch": "2.0.0-alpha.9"
+    "node-fetch": "2.0.0-alpha.9",
+    "syncano-validator": "^0.0.1"
   },
   "devDependencies": {
     "babel-cli": "^6.26.0",
diff --git a/src/server.js b/src/server.js
index a9e48e7..9b1b30e 100644
--- a/src/server.js
+++ b/src/server.js
@@ -9,38 +9,49 @@ import Logger from './logger'
 import Channel from './channel'
 import Class from './class'
 import Settings from './settings'
+import Validator from 'syncano-validator'
 
 const server = (ctx = {}) => {
+  ctx.args = ctx.args || {}
+  ctx.meta = ctx.meta || {}
+  ctx.meta.metadata = ctx.meta.metadata || {}
+
   const settings = new Settings(ctx)
   const getConfig = className => Object.assign({className}, settings)
   const config = getConfig()
 
-  const _class = new Class(config)
-  const users = new Users(config)
-  const event = new Event(config)
-  const channel = new Channel(config)
-  const socket = new Socket(config)
   const response = new Response(config)
-  const account = new Account(config)
-  const instance = new Instance(config)
-  const logger = new Logger(config)
+
+  if (ctx.meta.metadata.validate !== false) {
+    validateParameters(ctx, response)
+  }
 
   return {
-    _class,
-    users,
-    account,
-    instance,
-    event,
-    channel,
-    socket,
+    _class: new Class(config),
+    users: new Users(config),
+    event: new Event(config),
+    channel: new Channel(config),
+    socket: new Socket(config),
     response,
-    logger,
+    account: new Account(config),
+    instance: new Instance(config),
+    logger: new Logger(config),
     data: new Proxy(new Data(settings), {
       get(target, className) {
         return new Data(getConfig(className))
       }
     })
   }
+
+  function validateParameters(ctx, response) {
+    const validator = new Validator(ctx)
+
+    validator.validateRequest().catch(err => {
+      response.json({message: err}, 400)
+
+      process.exit(0)
+    })
+  }
 }
 
 export default server
diff --git a/yarn.lock b/yarn.lock
index 85648e8..5cc1050 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -35,6 +35,15 @@ ajv@^4.7.0, ajv@^4.9.1:
     co "^4.6.0"
     json-stable-stringify "^1.0.1"
 
+ajv@^5.2.3:
+  version "5.2.3"
+  resolved "https://registry.yarnpkg.com/ajv/-/ajv-5.2.3.tgz#c06f598778c44c6b161abafe3466b81ad1814ed2"
+  dependencies:
+    co "^4.6.0"
+    fast-deep-equal "^1.0.0"
+    json-schema-traverse "^0.3.0"
+    json-stable-stringify "^1.0.1"
+
 align-text@^0.1.1, align-text@^0.1.3:
   version "0.1.4"
   resolved "https://registry.yarnpkg.com/align-text/-/align-text-0.1.4.tgz#0cd90a561093f35d0a99256c22b7069433fad117"
@@ -1588,6 +1597,14 @@ extsprintf@1.3.0, extsprintf@^1.2.0:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/extsprintf/-/extsprintf-1.3.0.tgz#96918440e3041a7a414f8c52e3c574eb3c3e1e05"
 
+faker@^4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/faker/-/faker-4.1.0.tgz#1e45bbbecc6774b3c195fad2835109c6d748cc3f"
+
+fast-deep-equal@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/fast-deep-equal/-/fast-deep-equal-1.0.0.tgz#96256a3bc975595eb36d82e9929d060d893439ff"
+
 fast-levenshtein@~2.0.4:
   version "2.0.6"
   resolved "https://registry.yarnpkg.com/fast-levenshtein/-/fast-levenshtein-2.0.6.tgz#3d8a5c66883a16a30ca8643e851f19baa7797917"
@@ -2325,6 +2342,10 @@ jsesc@~0.5.0:
   version "0.5.0"
   resolved "https://registry.yarnpkg.com/jsesc/-/jsesc-0.5.0.tgz#e7dee66e35d6fc16f710fe91d5cf69f70f08911d"
 
+json-schema-traverse@^0.3.0:
+  version "0.3.1"
+  resolved "https://registry.yarnpkg.com/json-schema-traverse/-/json-schema-traverse-0.3.1.tgz#349a6d44c53a51de89b40805c5d5e59b417d3340"
+
 json-schema@0.2.3:
   version "0.2.3"
   resolved "https://registry.yarnpkg.com/json-schema/-/json-schema-0.2.3.tgz#b480c892e59a2f05954ce727bd3f2a4e882f9e13"
@@ -3653,6 +3674,13 @@ symbol-observable@^1.0.1:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/symbol-observable/-/symbol-observable-1.0.4.tgz#29bf615d4aa7121bdd898b22d4b3f9bc4e2aa03d"
 
+syncano-validator@^0.0.1:
+  version "0.0.1"
+  resolved "https://registry.yarnpkg.com/syncano-validator/-/syncano-validator-0.0.1.tgz#0aa76508f81ce3a479868b31c7eecc91011355f9"
+  dependencies:
+    ajv "^5.2.3"
+    faker "^4.1.0"
+
 table@^3.7.8:
   version "3.8.3"
   resolved "https://registry.yarnpkg.com/table/-/table-3.8.3.tgz#2bbc542f0fda9861a755d3947fefd8b3f513855f"