diff --git a/src/components/QrCodeComponent.vue b/src/components/QrCodeComponent.vue
index db31f71..b2a6861 100644
--- a/src/components/QrCodeComponent.vue
+++ b/src/components/QrCodeComponent.vue
@@ -1,75 +1,24 @@
 <script setup lang="ts">
 import { pix } from "@/utils/QrCodePix";
 import { onMounted, onUnmounted, ref } from "vue";
-import { debounce } from "@/utils/debounce";
 import CustomButton from "@/components/CustomButton/CustomButton.vue";
 import CustomModal from "@/components//CustomModal/CustomModal.vue";
-import api from "@/services/index";
 
 // props and store references
 const props = defineProps({
-  pixTarget: String,
-  tokenValue: Number,
+  sellerId: String,
+  amount: Number,
 });
 
 const windowSize = ref<number>(window.innerWidth);
 const qrCode = ref<string>("");
-const qrCodePayload = ref<string>("");
 const isPixValid = ref<boolean>(false);
-const isCodeInputEmpty = ref<boolean>(true);
 const showWarnModal = ref<boolean>(true);
-const e2eId = ref<string>("");
+const releaseSignature = ref<string>("");
 
 // Emits
 const emit = defineEmits(["pixValidated"]);
 
-const pixQrCode = pix({
-  pixKey: props.pixTarget ?? "",
-  value: props.tokenValue,
-});
-
-pixQrCode.base64QrCode().then((code: string) => {
-  qrCode.value = code;
-});
-
-qrCodePayload.value = pixQrCode.payload();
-
-const handleInputEvent = async (event: any): Promise<void> => {
-  const { value } = event.target;
-  e2eId.value = value;
-  await validatePix();
-};
-
-const validatePix = async (): Promise<void> => {
-  if (e2eId.value == "") {
-    isPixValid.value = false;
-    isCodeInputEmpty.value = true;
-    return;
-  }
-  const sellerPixKey = props.pixTarget;
-  const transactionValue = props.tokenValue;
-
-  if (sellerPixKey && transactionValue) {
-    const body_req = {
-      e2e_id: e2eId.value,
-      pix_key: sellerPixKey,
-      pix_value: transactionValue,
-    };
-
-    isCodeInputEmpty.value = false;
-
-    try {
-      await api.post("validate_pix", body_req);
-      isPixValid.value = true;
-    } catch (error) {
-      isPixValid.value = false;
-    }
-  } else {
-    isCodeInputEmpty.value = false;
-    isPixValid.value = false;
-  }
-};
-
 onMounted(() => {
   window.addEventListener(
     "resize",
@@ -94,7 +43,7 @@ onUnmounted(() => {
       </span>
       <span class="text font-medium lg:text-md text-sm max-w-[28rem]">
         Após realizar o Pix no banco de sua preferência, clique no botão abaixo
-        para gerar a assinatura para liberação dos tokens.
+        para liberação dos tokens.
       </span>
     </div>
     <div class="main-container max-w-md text-black">
@@ -105,7 +54,7 @@ onUnmounted(() => {
         <span class="text-center font-bold">Código pix</span>
         <div class="break-words w-4/5">
           <span class="text-center text-xs">
-            {{ qrCodePayload }}
+            {{ qrCode }}
           </span>
         </div>
         <img
@@ -115,17 +64,11 @@ onUnmounted(() => {
           height="16"
           class="pt-2 lg:mb-5 cursor-pointer"
         />
-        <span class="text-xs text-start hidden sm:inline-block">
-          <strong>ATENÇÃO!</strong> A transação só será processada após inserir
-          o código de autenticação. Caso contrário não conseguiremos comprovar o
-          seu depósito e não será possível transferir os tokens para sua
-          carteira. Confira aqui como encontrar o código no comprovante.
-        </span>
       </div>
       <CustomButton
         :is-disabled="isPixValid == false"
         :text="'Enviar para a rede'"
-        @button-clicked="emit('pixValidated', e2eId)"
+        @button-clicked="emit('pixValidated', releaseSignature)"
       />
     </div>
     <CustomModal
diff --git a/src/components/SellerSteps/SendNetwork.vue b/src/components/SellerSteps/SendNetwork.vue
index 5cf7c86..98e6bd5 100644
--- a/src/components/SellerSteps/SendNetwork.vue
+++ b/src/components/SellerSteps/SendNetwork.vue
@@ -6,7 +6,7 @@ const emit = defineEmits(["sendNetwork"]);
 
 // props and store references
 const props = defineProps({
-  pixKey: String,
+  sellerId: String,
   offer: Number,
   selectedToken: String,
 });
@@ -39,7 +39,7 @@ const props = defineProps({
         <div class="my-3">
           <p>Chave Pix</p>
           <p class="text-xl text-gray-900 break-words">
-            {{ props.pixKey }}
+            {{ props.sellerId }}
           </p>
         </div>
         <div class="mb-5">
diff --git a/src/services/index.ts b/src/services/index.ts
deleted file mode 100644
index 8f4cc1a..0000000
--- a/src/services/index.ts
+++ /dev/null
@@ -1,14 +0,0 @@
-/* eslint-disable @typescript-eslint/no-non-null-assertion */
-import axios from "axios";
-
-const defaultConfig = {
-  "Content-Type": "application/json",
-  "Access-Control-Allow-Origin": "*",
-};
-
-const api = axios.create({
-  ...defaultConfig,
-  baseURL: import.meta.env.VITE_API_URL,
-});
-
-export default api;
diff --git a/src/utils/bbPay.ts b/src/utils/bbPay.ts
new file mode 100644
index 0000000..e6f869c
--- /dev/null
+++ b/src/utils/bbPay.ts
@@ -0,0 +1,43 @@
+export interface Participant {
+  offer: string;
+  fullName: string;
+  identification: string;
+  bankIspb?: string;
+  accountType: string;
+  account: string;
+  branch: string;
+  savingsVariation?: string;
+}
+
+export interface ParticipantWithID extends Participant {
+  id: string;
+}
+
+export interface Offer {
+  amount: number;
+  sellerID: string;
+}
+
+export const createParticipant = async (participant: Participant) => {
+  const response = await fetch(`${process.env.VUE_APP_API_URL}/participants`, {
+    method: "PUT",
+    body: JSON.stringify(participant),
+  });
+  const data = await response.json();
+  return { ...participant, id: data.id } as ParticipantWithID;
+};
+
+export const createSolicitation = async (offer: Offer) => {
+  const response = await fetch(`${process.env.VUE_APP_API_URL}/solicitation`, {
+    method: "POST",
+    body: JSON.stringify(offer),
+  });
+  return response.json();
+};
+
+export const getSolicitation = async (id: string) => {
+  const response = await fetch(
+    `${process.env.VUE_APP_API_URL}/solicitation/${id}`
+  );
+  return response.json();
+};
diff --git a/src/views/HomeView.vue b/src/views/HomeView.vue
index f08da47..0f2bb12 100644
--- a/src/views/HomeView.vue
+++ b/src/views/HomeView.vue
@@ -140,8 +140,8 @@ onMounted(async () => {
     />
     <div v-if="flowStep == Step.Buy">
       <QrCodeComponent
-        :pixTarget="String(pixTarget)"
-        :tokenValue="tokenAmount"
+        :sellerId="String(pixTarget)"
+        :amount="tokenAmount"
         @pix-validated="releaseTransaction"
         v-if="!loadingLock"
       />
diff --git a/src/views/SellerView.vue b/src/views/SellerView.vue
index 3fff852..489ad30 100644
--- a/src/views/SellerView.vue
+++ b/src/views/SellerView.vue
@@ -7,6 +7,7 @@ import { approveTokens, addDeposit } from "@/blockchain/sellerMethods";
 import { ref } from "vue";
 import { useEtherStore } from "@/store/ether";
 import CustomAlert from "@/components/CustomAlert/CustomAlert.vue";
+import { createParticipant, Participant } from "@/utils/bbPay";
 
 enum Step {
   Search,
@@ -14,32 +15,21 @@ enum Step {
   Network,
 }
 
-interface SellerData {
-  identification: string;
-  account: string;
-  branch: string;
-  bankIspb: string;
-  accountType: string;
-  savingsVariation: string;
-}
-
 const etherStore = useEtherStore();
 etherStore.setSellerView(true);
 
 const flowStep = ref<Step>(Step.Sell);
 const loading = ref<boolean>(false);
 
-const offerValue = ref<string>("");
+const seller = ref<Participant>();
+const sellerId = ref<string>();
 const showAlert = ref<boolean>(false);
 
 // Verificar tipagem
-const approveOffer = async (args: {
-  offer: string;
-  postProcessedPixKey: string;
-}) => {
+const approveOffer = async (args: Participant) => {
   loading.value = true;
   try {
-    offerValue.value = args.offer;
+    seller.value = args;
     await approveTokens(args.offer);
     flowStep.value = Step.Network;
     loading.value = false;
@@ -53,8 +43,10 @@ const approveOffer = async (args: {
 const sendNetwork = async () => {
   loading.value = true;
   try {
-    if (offerValue.value) {
-      await addDeposit(String(offerValue.value));
+    if (seller.value) {
+      const participantWithId = await createParticipant(seller.value);
+      sellerId.value = participantWithId.id;
+      await addDeposit(String(seller.value.offer), participantWithId.id);
       flowStep.value = Step.Sell;
       loading.value = false;
       showAlert.value = true;
@@ -83,8 +75,8 @@ const sendNetwork = async () => {
     />
     <div v-if="flowStep == Step.Network">
       <SendNetwork
-        :pixKey="pixKeyBuyer"
-        :offer="Number(offerValue)"
+        :sellerId="sellerId"
+        :offer="Number(seller?.offer)"
         :selected-token="etherStore.selectedToken"
         v-if="!loading"
         @send-network="sendNetwork"