diff --git a/backend/package.json b/backend/package.json
index c03acf1ed3..7d772ed617 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -19,6 +19,7 @@
     "locales": "scripts/sort.sh"
   },
   "dependencies": {
+    "@apollo/protobufjs": "^1.2.7",
     "apollo-server-express": "^2.25.2",
     "await-semaphore": "^0.1.3",
     "axios": "^0.21.1",
diff --git a/backend/src/graphql/enum/AddressType.ts b/backend/src/graphql/enum/AddressType.ts
new file mode 100644
index 0000000000..d75ad99883
--- /dev/null
+++ b/backend/src/graphql/enum/AddressType.ts
@@ -0,0 +1,8 @@
+export enum AddressType {
+  NONE = 0, // if no address was found
+  HUMAN = 1,
+  PROJECT = 2, // no creations allowed
+  SUBACCOUNT = 3, // no creations allowed
+  CRYPTO_ACCOUNT = 4, // user control his keys, no creations
+  COMMUNITY_ACCOUNT = 5, // community control keys, creations allowed
+}
diff --git a/backend/src/graphql/enum/CrossGroupType.ts b/backend/src/graphql/enum/CrossGroupType.ts
new file mode 100644
index 0000000000..921ae4eed1
--- /dev/null
+++ b/backend/src/graphql/enum/CrossGroupType.ts
@@ -0,0 +1,7 @@
+export enum CrossGroupType {
+  LOCAL = 0,
+  INBOUND = 1,
+  OUTBOUND = 2,
+  // for cross group transaction which haven't a direction like group friend update
+  CROSS = 3,
+}
diff --git a/backend/src/proto/GradidoCreation.ts b/backend/src/proto/GradidoCreation.ts
new file mode 100644
index 0000000000..90ca85806d
--- /dev/null
+++ b/backend/src/proto/GradidoCreation.ts
@@ -0,0 +1,16 @@
+import { Field, Message } from '@apollo/protobufjs'
+
+import { TimestampSeconds } from './TimestampSeconds'
+import { TransferAmount } from './TransferAmount'
+
+// need signature from group admin or
+// percent of group users another than the receiver
+// https://www.npmjs.com/package/@apollo/protobufjs
+// eslint-disable-next-line no-use-before-define
+export class GradidoCreation extends Message<GradidoCreation> {
+  @Field.d(1, TransferAmount)
+  public recipient: TransferAmount
+
+  @Field.d(3, 'TimestampSeconds')
+  public targetDate: TimestampSeconds
+}
diff --git a/backend/src/proto/GradidoDeferredTransfer.ts b/backend/src/proto/GradidoDeferredTransfer.ts
new file mode 100644
index 0000000000..92e0c0e6ad
--- /dev/null
+++ b/backend/src/proto/GradidoDeferredTransfer.ts
@@ -0,0 +1,31 @@
+import { Field, Message } from '@apollo/protobufjs'
+
+import { GradidoTransfer } from './GradidoTransfer'
+import { Timestamp } from './Timestamp'
+
+// transaction type for chargeable transactions
+// for transaction for people which haven't a account already
+// consider using a seed number for key pair generation for recipiant
+// using seed as redeem key for claiming transaction, technically make a default Transfer transaction from recipiant address
+// seed must be long enough to prevent brute force, maybe base64 encoded
+// to own account
+// https://www.npmjs.com/package/@apollo/protobufjs
+// eslint-disable-next-line no-use-before-define
+export class GradidoDeferredTransfer extends Message<GradidoDeferredTransfer> {
+  // amount is amount with decay for time span between transaction was received and timeout
+  // useable amount can be calculated
+  // recipient address don't need to be registered in blockchain with register address
+  @Field.d(1, GradidoTransfer)
+  public transfer: GradidoTransfer
+
+  // if timeout timestamp is reached if it wasn't used, it will be booked back minus decay
+  // technically on blockchain no additional transaction will be created because how should sign it?
+  // the decay for amount and the seconds until timeout is lost no matter what happened
+  // consider is as fee for this service
+  // rest decay could be transferred back as separate transaction
+  @Field.d(2, 'Timestamp')
+  public timeout: Timestamp
+
+  // split for n recipient
+  // max gradido per recipient? or per transaction with cool down?
+}
diff --git a/backend/src/proto/GradidoTransaction.ts b/backend/src/proto/GradidoTransaction.ts
new file mode 100644
index 0000000000..ca1a59e30b
--- /dev/null
+++ b/backend/src/proto/GradidoTransaction.ts
@@ -0,0 +1,21 @@
+import { Field, Message } from '@apollo/protobufjs'
+
+import { SignatureMap } from './SignatureMap'
+
+// https://www.npmjs.com/package/@apollo/protobufjs
+// eslint-disable-next-line no-use-before-define
+export class GradidoTransaction extends Message<GradidoTransaction> {
+  @Field.d(1, SignatureMap)
+  public sigMap: SignatureMap
+
+  // inspired by Hedera
+  // bodyBytes are the payload for signature
+  // bodyBytes are serialized TransactionBody
+  @Field.d(2, 'bytes')
+  public bodyBytes: Buffer
+
+  // if it is a cross group transaction the parent message
+  // id from outbound transaction or other by cross
+  @Field.d(3, 'bytes')
+  public parentMessageId: Buffer
+}
diff --git a/backend/src/proto/GradidoTransfer.ts b/backend/src/proto/GradidoTransfer.ts
new file mode 100644
index 0000000000..203b281ad7
--- /dev/null
+++ b/backend/src/proto/GradidoTransfer.ts
@@ -0,0 +1,13 @@
+import { Field, Message } from '@apollo/protobufjs'
+
+import { TransferAmount } from './TransferAmount'
+
+// https://www.npmjs.com/package/@apollo/protobufjs
+// eslint-disable-next-line no-use-before-define
+export class GradidoTransfer extends Message<GradidoTransfer> {
+  @Field.d(1, TransferAmount)
+  public sender: TransferAmount
+
+  @Field.d(2, 'bytes')
+  public recipient: Buffer
+}
diff --git a/backend/src/proto/GroupFriendsUpdate.ts b/backend/src/proto/GroupFriendsUpdate.ts
new file mode 100644
index 0000000000..64e74a6940
--- /dev/null
+++ b/backend/src/proto/GroupFriendsUpdate.ts
@@ -0,0 +1,15 @@
+import { Field, Message } from '@apollo/protobufjs'
+
+// connect group together
+// only CrossGroupType CROSS (in TransactionBody)
+// https://www.npmjs.com/package/@apollo/protobufjs
+// eslint-disable-next-line no-use-before-define
+export class GroupFriendsUpdate extends Message<GroupFriendsUpdate> {
+  // if set to true, colors of this both groups are trait as the same
+  // on creation user get coins still in there color
+  // on transfer into another group which a connection exist,
+  // coins will be automatic swapped into user group color coin
+  // (if fusion between src coin and dst coin is enabled)
+  @Field.d(1, 'bool')
+  public colorFusion: boolean
+}
diff --git a/backend/src/proto/RegisterAddress.ts b/backend/src/proto/RegisterAddress.ts
new file mode 100644
index 0000000000..85b8390df6
--- /dev/null
+++ b/backend/src/proto/RegisterAddress.ts
@@ -0,0 +1,19 @@
+import { Field, Message } from '@apollo/protobufjs'
+
+import { AddressType } from '@enum/AddressType'
+
+// https://www.npmjs.com/package/@apollo/protobufjs
+// eslint-disable-next-line no-use-before-define
+export class RegisterAddress extends Message<RegisterAddress> {
+  @Field.d(1, 'bytes')
+  public userPubkey: Buffer
+
+  @Field.d(2, 'AddressType')
+  public addressType: AddressType
+
+  @Field.d(3, 'bytes')
+  public nameHash: Buffer
+
+  @Field.d(4, 'bytes')
+  public subaccountPubkey: Buffer
+}
diff --git a/backend/src/proto/SignatureMap.ts b/backend/src/proto/SignatureMap.ts
new file mode 100644
index 0000000000..e48b0232da
--- /dev/null
+++ b/backend/src/proto/SignatureMap.ts
@@ -0,0 +1,10 @@
+import { Field, Message } from '@apollo/protobufjs'
+
+import { SignaturePair } from './SignaturePair'
+
+// https://www.npmjs.com/package/@apollo/protobufjs
+// eslint-disable-next-line no-use-before-define
+export class SignatureMap extends Message<SignatureMap> {
+  @Field.d(1, SignaturePair, 'repeated')
+  public sigPair: SignaturePair
+}
diff --git a/backend/src/proto/SignaturePair.ts b/backend/src/proto/SignaturePair.ts
new file mode 100644
index 0000000000..07ed4cc558
--- /dev/null
+++ b/backend/src/proto/SignaturePair.ts
@@ -0,0 +1,11 @@
+import { Field, Message } from '@apollo/protobufjs'
+
+// https://www.npmjs.com/package/@apollo/protobufjs
+// eslint-disable-next-line no-use-before-define
+export class SignaturePair extends Message<SignaturePair> {
+  @Field.d(1, 'bytes')
+  public pubKey: Buffer
+
+  @Field.d(2, 'bytes')
+  public signature: Buffer
+}
diff --git a/backend/src/proto/Timestamp.ts b/backend/src/proto/Timestamp.ts
new file mode 100644
index 0000000000..2d33352721
--- /dev/null
+++ b/backend/src/proto/Timestamp.ts
@@ -0,0 +1,13 @@
+import { Field, Message } from '@apollo/protobufjs'
+
+// https://www.npmjs.com/package/@apollo/protobufjs
+// eslint-disable-next-line no-use-before-define
+export class Timestamp extends Message<Timestamp> {
+  // Number of complete seconds since the start of the epoch
+  @Field.d(1, 'int64')
+  public seconds: number
+
+  // Number of nanoseconds since the start of the last second
+  @Field.d(2, 'int32')
+  public nanoSeconds: number
+}
diff --git a/backend/src/proto/TimestampSeconds.ts b/backend/src/proto/TimestampSeconds.ts
new file mode 100644
index 0000000000..9a8c5b9dec
--- /dev/null
+++ b/backend/src/proto/TimestampSeconds.ts
@@ -0,0 +1,9 @@
+import { Field, Message } from '@apollo/protobufjs'
+
+// https://www.npmjs.com/package/@apollo/protobufjs
+// eslint-disable-next-line no-use-before-define
+export class TimestampSeconds extends Message<TimestampSeconds> {
+  // Number of complete seconds since the start of the epoch
+  @Field.d(1, 'int64')
+  public seconds: number
+}
diff --git a/backend/src/proto/TransactionBody.ts b/backend/src/proto/TransactionBody.ts
new file mode 100644
index 0000000000..9a0468d474
--- /dev/null
+++ b/backend/src/proto/TransactionBody.ts
@@ -0,0 +1,33 @@
+import { Field, Message, OneOf } from '@apollo/protobufjs'
+
+import { CrossGroupType } from '@/graphql/enum/CrossGroupType'
+
+import { TimestampSeconds } from './TimestampSeconds'
+
+// https://www.npmjs.com/package/@apollo/protobufjs
+// eslint-disable-next-line no-use-before-define
+export class TransactionBody extends Message<TransactionBody> {
+  @Field.d(1, 'string')
+  public memo: string
+
+  @Field.d(2, TimestampSeconds)
+  public createdAt: TimestampSeconds
+
+  @Field.d(3, 'string')
+  public versionNumber: string
+
+  @Field.d(4, CrossGroupType)
+  public type: CrossGroupType
+
+  @Field.d(5, 'string')
+  public otherGroup: string
+
+  @OneOf.d(
+    'gradidoTransfer',
+    'gradidoCreation',
+    'groupFriendsUpdate',
+    'registerAddress',
+    'gradidoDeferredTransfer',
+  )
+  public data: string
+}
diff --git a/backend/src/proto/TransferAmount.ts b/backend/src/proto/TransferAmount.ts
new file mode 100644
index 0000000000..28e50500ff
--- /dev/null
+++ b/backend/src/proto/TransferAmount.ts
@@ -0,0 +1,14 @@
+import { Field, Message } from '@apollo/protobufjs'
+
+// https://www.npmjs.com/package/@apollo/protobufjs
+// eslint-disable-next-line no-use-before-define
+export class TransferAmount extends Message<TransferAmount> {
+  @Field.d(1, 'bytes')
+  public pubkey: Buffer
+
+  @Field.d(2, 'string')
+  public amount: string
+
+  @Field.d(3, 'string')
+  public groupId: string
+}
diff --git a/backend/tsconfig.json b/backend/tsconfig.json
index 146cd41e3d..1e89a73846 100644
--- a/backend/tsconfig.json
+++ b/backend/tsconfig.json
@@ -52,6 +52,7 @@
       "@enum/*": ["src/graphql/enum/*"],
       "@model/*": ["src/graphql/model/*"],
       "@union/*": ["src/graphql/union/*"],
+      "@proto/*": ["src/proto/*"],
       "@repository/*": ["src/typeorm/repository/*"],
       "@test/*": ["test/*"],
       /* external */
diff --git a/backend/yarn.lock b/backend/yarn.lock
index 84553d73ea..6357d48840 100644
--- a/backend/yarn.lock
+++ b/backend/yarn.lock
@@ -21,6 +21,24 @@
     "@types/node" "^10.1.0"
     long "^4.0.0"
 
+"@apollo/protobufjs@^1.2.7":
+  version "1.2.7"
+  resolved "https://registry.yarnpkg.com/@apollo/protobufjs/-/protobufjs-1.2.7.tgz#3a8675512817e4a046a897e5f4f16415f16a7d8a"
+  integrity sha512-Lahx5zntHPZia35myYDBRuF58tlwPskwHc5CWBZC/4bMKB6siTBWwtMrkqXcsNwQiFSzSx5hKdRPUmemrEp3Gg==
+  dependencies:
+    "@protobufjs/aspromise" "^1.1.2"
+    "@protobufjs/base64" "^1.1.2"
+    "@protobufjs/codegen" "^2.0.4"
+    "@protobufjs/eventemitter" "^1.1.0"
+    "@protobufjs/fetch" "^1.1.0"
+    "@protobufjs/float" "^1.0.2"
+    "@protobufjs/inquire" "^1.1.0"
+    "@protobufjs/path" "^1.1.2"
+    "@protobufjs/pool" "^1.1.0"
+    "@protobufjs/utf8" "^1.1.0"
+    "@types/long" "^4.0.0"
+    long "^4.0.0"
+
 "@apollographql/apollo-tools@^0.5.0":
   version "0.5.1"
   resolved "https://registry.yarnpkg.com/@apollographql/apollo-tools/-/apollo-tools-0.5.1.tgz#f0baef739ff7e2fafcb8b98ad29f6ac817e53e32"
@@ -3679,7 +3697,7 @@ graceful-fs@^4.1.6, graceful-fs@^4.2.0:
   integrity sha512-9ByhssR2fPVsNZj478qUUbKfmL0+t5BDVyjShtyZZLiK7ZDAArFFfopyOTj0M05wE2tJPisA4iTnnXl2YoPvOA==
 
 "gradido-database@file:../database":
-  version "1.22.0"
+  version "1.22.3"
   dependencies:
     "@types/uuid" "^8.3.4"
     cross-env "^7.0.3"