diff --git a/server/src/schema/types/AdditionalPrize.js b/server/src/schema/types/AdditionalPrize.js
index ee3a791ff..1c888b687 100644
--- a/server/src/schema/types/AdditionalPrize.js
+++ b/server/src/schema/types/AdditionalPrize.js
@@ -1,15 +1,17 @@
 import {
   GraphQLObjectType,
+  GraphQLNonNull,
   GraphQLString,
   GraphQLInt,
 } from 'graphql';
 
 const AdditionalPrizeType = new GraphQLObjectType({
-  name: 'OtherPrize',
+  name: 'AdditionalPrize',
+  description: 'Non algo complementary prize',
   fields: () => ({
     condition: { type: GraphQLString },
-    amount: { type: GraphQLInt },
-    asset: { type: GraphQLString },
+    amount: { type: new GraphQLNonNull(GraphQLInt) },
+    asset: { type: new GraphQLNonNull(GraphQLString) },
   }),
 });
 
diff --git a/server/src/schema/types/Event.js b/server/src/schema/types/Event.js
index 7917e3032..ec0bf6c2b 100644
--- a/server/src/schema/types/Event.js
+++ b/server/src/schema/types/Event.js
@@ -15,6 +15,7 @@ import {
 
 const EventType = new GraphQLObjectType({
   name: 'Event',
+  description: 'Everything you need to know about an event',
   fields: () => ({
     designator: { type: GraphQLID },
     name: { type: GraphQLString },
diff --git a/server/src/schema/types/Formula.js b/server/src/schema/types/Formula.js
index f5d312327..934cbcd60 100644
--- a/server/src/schema/types/Formula.js
+++ b/server/src/schema/types/Formula.js
@@ -6,6 +6,7 @@ import {
 
 const FormulaType = new GraphQLObjectType({
   name: 'Formula',
+  description: 'For now it\'s simplay a named field',
   fields: () => ({
     id: { type: GraphQLString },
     ownerId: { type: GraphQLString },
diff --git a/server/src/schema/types/Participant.js b/server/src/schema/types/Participant.js
index f3afb7745..28c2833df 100644
--- a/server/src/schema/types/Participant.js
+++ b/server/src/schema/types/Participant.js
@@ -5,6 +5,7 @@ import {
 
 const ParticipantType = new GraphQLObjectType({
   name: 'Participant',
+  description: 'Informations about the participant of an event',
   fields: () => ({
     teamId: { type: GraphQLString },
     botId: { type: GraphQLString },
diff --git a/server/src/schema/types/Plotter.js b/server/src/schema/types/Plotter.js
index 9e86390a5..798d197af 100644
--- a/server/src/schema/types/Plotter.js
+++ b/server/src/schema/types/Plotter.js
@@ -6,6 +6,7 @@ import {
 
 const PlotterType = new GraphQLObjectType({
   name: 'Plotter',
+  description: 'Will soon change in order to use contained plotter objects',
   fields: () => ({
     id: { type: GraphQLString },
     ownerId: { type: GraphQLString },
diff --git a/server/src/schema/types/Prize.js b/server/src/schema/types/Prize.js
index 4b2fc8aba..7a81a702a 100644
--- a/server/src/schema/types/Prize.js
+++ b/server/src/schema/types/Prize.js
@@ -2,14 +2,16 @@ import {
   GraphQLObjectType,
   GraphQLList,
   GraphQLInt,
+  GraphQLNonNull,
 } from 'graphql';
 import { AdditionalPrizeType } from './index';
 
 const PrizeType = new GraphQLObjectType({
   name: 'Prize',
+  description: 'Prize, by default in algos',
   fields: () => ({
-    rank: { type: GraphQLInt },
-    amount: { type: GraphQLInt },
+    rank: { type: new GraphQLNonNull(GraphQLInt) },
+    amount: { type: new GraphQLNonNull(GraphQLInt) },
     additional: {
       type: new GraphQLList(AdditionalPrizeType),
       resolve(parent) {
diff --git a/server/src/schema/types/Rule.js b/server/src/schema/types/Rule.js
index e39a877fc..46358242d 100644
--- a/server/src/schema/types/Rule.js
+++ b/server/src/schema/types/Rule.js
@@ -6,6 +6,7 @@ import {
 
 const RuleType = new GraphQLObjectType({
   name: 'Rule',
+  description: 'Textual rules of an event',
   fields: () => ({
     position: { type: GraphQLInt },
     title: { type: GraphQLString },
diff --git a/server/src/schema/types/input/AdditionalPrize.js b/server/src/schema/types/input/AdditionalPrize.js
new file mode 100644
index 000000000..0fe28c2f0
--- /dev/null
+++ b/server/src/schema/types/input/AdditionalPrize.js
@@ -0,0 +1,18 @@
+import {
+  GraphQLInputObjectType,
+  GraphQLNonNull,
+  GraphQLString,
+  GraphQLInt,
+} from 'graphql';
+
+const Type = new GraphQLInputObjectType({
+  name: 'AdditionalPrizeInput',
+  description: 'Payload for formula input',
+  fields: () => ({
+    condition: { type: GraphQLString },
+    amount: { type: new GraphQLNonNull(GraphQLInt) },
+    asset: { type: new GraphQLNonNull(GraphQLString) },
+  }),
+});
+
+export default Type;
diff --git a/server/src/schema/types/input/Event.js b/server/src/schema/types/input/Event.js
new file mode 100644
index 000000000..54c8e0865
--- /dev/null
+++ b/server/src/schema/types/input/Event.js
@@ -0,0 +1,29 @@
+import {
+  GraphQLString,
+  GraphQLInt,
+  GraphQLInputObjectType,
+  GraphQLList,
+} from 'graphql';
+import InputFormulaType from './Formula';
+import InputPlotterType from './Plotter';
+import InputPrizeType from './Prize';
+import InputParticipantType from './Participant';
+
+const Type = new GraphQLInputObjectType({
+  name: 'EventInput',
+  description: 'Payload for event input',
+  fields: () => ({
+    name: { type: GraphQLString },
+    description: { type: GraphQLString },
+    startDatetime: { type: GraphQLInt },
+    finishDatetime: { type: GraphQLInt },
+    formulaId: { type: GraphQLString },
+    formula: { type: InputFormulaType },
+    plotterId: { type: GraphQLString },
+    plotter: { type: InputPlotterType },
+    prizes: { type: new GraphQLList(InputPrizeType) },
+    participants: { type: new GraphQLList(InputParticipantType) },
+  }),
+});
+
+export default Type;
diff --git a/server/src/schema/types/input/Formula.js b/server/src/schema/types/input/Formula.js
new file mode 100644
index 000000000..bd9d070f1
--- /dev/null
+++ b/server/src/schema/types/input/Formula.js
@@ -0,0 +1,15 @@
+import {
+  GraphQLNonNull,
+  GraphQLString,
+  GraphQLInputObjectType,
+} from 'graphql';
+
+const Type = new GraphQLInputObjectType({
+  name: 'FormulaInput',
+  description: 'Payload for formula input',
+  fields: () => ({
+    name: { type: new GraphQLNonNull(GraphQLString) },
+  }),
+});
+
+export default Type;
diff --git a/server/src/schema/types/input/Participant.js b/server/src/schema/types/input/Participant.js
new file mode 100644
index 000000000..c3853df83
--- /dev/null
+++ b/server/src/schema/types/input/Participant.js
@@ -0,0 +1,17 @@
+import {
+  GraphQLInputObjectType,
+  GraphQLString,
+  GraphQLNonNull,
+} from 'graphql';
+
+const Type = new GraphQLInputObjectType({
+  name: 'ParticipantInput',
+  description: 'Payload for formula input',
+  fields: () => ({
+    teamId: { type: new GraphQLNonNull(GraphQLString) },
+    botId: { type: GraphQLString },
+    releaseId: { type: GraphQLString },
+  }),
+});
+
+export default Type;
diff --git a/server/src/schema/types/input/Plotter.js b/server/src/schema/types/input/Plotter.js
new file mode 100644
index 000000000..1368aecf9
--- /dev/null
+++ b/server/src/schema/types/input/Plotter.js
@@ -0,0 +1,18 @@
+import {
+  GraphQLNonNull,
+  GraphQLString,
+  GraphQLInputObjectType,
+} from 'graphql';
+
+const Type = new GraphQLInputObjectType({
+  name: 'PlotterInput',
+  description: 'Payload for plotter input',
+  fields: () => ({
+    name: { type: new GraphQLNonNull(GraphQLString) },
+    host: { type: GraphQLString },
+    repo: { type: GraphQLString },
+    moduleName: { type: GraphQLString },
+  }),
+});
+
+export default Type;
diff --git a/server/src/schema/types/input/Prize.js b/server/src/schema/types/input/Prize.js
new file mode 100644
index 000000000..5be06f0f2
--- /dev/null
+++ b/server/src/schema/types/input/Prize.js
@@ -0,0 +1,21 @@
+import {
+  GraphQLInputObjectType,
+  GraphQLList,
+  GraphQLInt,
+  GraphQLNonNull,
+} from 'graphql';
+import InputAdditionalPrizeType from './AdditionalPrize';
+
+const Type = new GraphQLInputObjectType({
+  name: 'PrizeInput',
+  description: 'Payload for formula input',
+  fields: () => ({
+    rank: { type: new GraphQLNonNull(GraphQLInt) },
+    amount: { type: new GraphQLNonNull(GraphQLInt) },
+    additional: {
+      type: new GraphQLList(InputAdditionalPrizeType),
+    },
+  }),
+});
+
+export default Type;
diff --git a/server/src/schema/types/input/Rule.js b/server/src/schema/types/input/Rule.js
new file mode 100644
index 000000000..220b99412
--- /dev/null
+++ b/server/src/schema/types/input/Rule.js
@@ -0,0 +1,18 @@
+import {
+  GraphQLNonNull,
+  GraphQLString,
+  GraphQLInt,
+  GraphQLInputObjectType,
+} from 'graphql';
+
+const Type = new GraphQLInputObjectType({
+  name: 'RuleInput',
+  description: 'Payload for rule input',
+  fields: () => ({
+    position: { type: GraphQLInt },
+    title: { type: new GraphQLNonNull(GraphQLString) },
+    description: { type: GraphQLString },
+  }),
+});
+
+export default Type;
diff --git a/server/src/schema/types/input/index.js b/server/src/schema/types/input/index.js
new file mode 100644
index 000000000..5bab6702a
--- /dev/null
+++ b/server/src/schema/types/input/index.js
@@ -0,0 +1,17 @@
+import PlotterInputType from './Plotter';
+import RuleInputType from './Rule';
+import PrizeInputType from './Prize';
+import FormulaInputType from './Formula';
+import EventInputType from './Event';
+import AdditionalPrizeInputType from './AdditionalPrize';
+import ParticipantInputType from './Participant';
+
+export {
+  PlotterInputType,
+  RuleInputType,
+  PrizeInputType,
+  FormulaInputType,
+  EventInputType,
+  AdditionalPrizeInputType,
+  ParticipantInputType,
+};