diff --git a/dapp/.env b/dapp/.env
index 750d2de79..9b9a93186 100644
--- a/dapp/.env
+++ b/dapp/.env
@@ -11,6 +11,7 @@ VITE_REFERRAL=0
 
 # TODO: Set this env variable in CI.
 VITE_TBTC_API_ENDPOINT=""
+VITE_ACRE_API_ENDPOINT="http://localhost:8788/api/v1/"
 
 # API KEYS
 VITE_GELATO_RELAY_API_KEY="htaJCy_XHj8WsE3w53WBMurfySDtjLP_TrNPPa6IPIc_"  # this key should not be used on production
diff --git a/dapp/src/components/ConnectWalletModal/ConnectWalletButton.tsx b/dapp/src/components/ConnectWalletModal/ConnectWalletButton.tsx
index 6f8d5fe0d..a323181eb 100644
--- a/dapp/src/components/ConnectWalletModal/ConnectWalletButton.tsx
+++ b/dapp/src/components/ConnectWalletModal/ConnectWalletButton.tsx
@@ -3,6 +3,7 @@ import { CONNECTION_ERRORS, ONE_SEC_IN_MILLISECONDS } from "#/constants"
 import {
   useAppDispatch,
   useModal,
+  useSignMessageAndCreateSession,
   useWallet,
   useWalletConnectionError,
 } from "#/hooks"
@@ -20,7 +21,6 @@ import {
   ImageProps,
   VStack,
 } from "@chakra-ui/react"
-import { useSignMessage } from "wagmi"
 import { IconArrowNarrowRight } from "@tabler/icons-react"
 import { AnimatePresence, Variants, motion } from "framer-motion"
 import ArrivingSoonTooltip from "../ArrivingSoonTooltip"
@@ -61,7 +61,8 @@ export default function ConnectWalletButton({
     onDisconnect,
     status: connectionStatus,
   } = useWallet()
-  const { signMessageAsync, status: signMessageStatus } = useSignMessage()
+  const { signMessageStatus, signMessageAndCreateSession } =
+    useSignMessageAndCreateSession()
   const { closeModal } = useModal()
   const dispatch = useAppDispatch()
 
@@ -82,22 +83,18 @@ export default function ConnectWalletButton({
     }
   }, [closeModal, dispatch, onSuccess])
 
-  const handleSignMessage = useCallback(
+  const handleSignMessageAndCreateSession = useCallback(
     async (connectedConnector: OrangeKitConnector, btcAddress: string) => {
-      const message = orangeKit.createSignInWithWalletMessage(btcAddress)
-      const signedMessage = await signMessageAsync({
-        message,
-        connector: orangeKit.typeConversionToConnector(connectedConnector),
-      })
-
       try {
-        await orangeKit.verifySignInWithWalletMessage(message, signedMessage)
+        await signMessageAndCreateSession(connectedConnector, btcAddress)
+
         onSuccessSignMessage()
       } catch (error) {
+        console.error("Failed to sign siww message", error)
         setConnectionError(CONNECTION_ERRORS.INVALID_SIWW_SIGNATURE)
       }
     },
-    [signMessageAsync, onSuccessSignMessage, setConnectionError],
+    [signMessageAndCreateSession, onSuccessSignMessage, setConnectionError],
   )
 
   const onSuccessConnection = useCallback(
@@ -106,9 +103,9 @@ export default function ConnectWalletButton({
 
       if (!btcAddress) return
 
-      await handleSignMessage(connector, btcAddress)
+      await handleSignMessageAndCreateSession(connector, btcAddress)
     },
-    [connector, handleSignMessage],
+    [connector, handleSignMessageAndCreateSession],
   )
 
   const handleConnection = useCallback(() => {
@@ -241,7 +238,9 @@ export default function ConnectWalletButton({
                     size="lg"
                     variant="outline"
                     onClick={() =>
-                      logPromiseFailure(handleSignMessage(connector, address))
+                      logPromiseFailure(
+                        handleSignMessageAndCreateSession(connector, address),
+                      )
                     }
                   >
                     Resume and try again
diff --git a/dapp/src/constants/env.ts b/dapp/src/constants/env.ts
index 57945f2f1..d2b31b236 100644
--- a/dapp/src/constants/env.ts
+++ b/dapp/src/constants/env.ts
@@ -22,6 +22,8 @@ const NETWORK_TYPE = USE_TESTNET ? "testnet" : "mainnet"
 
 const LATEST_COMMIT_HASH = import.meta.env.VITE_LATEST_COMMIT_HASH
 
+const ACRE_API_ENDPOINT = import.meta.env.VITE_ACRE_API_ENDPOINT
+
 export default {
   PROD,
   USE_TESTNET,
@@ -35,4 +37,5 @@ export default {
   MEZO_PORTAL_API_KEY,
   NETWORK_TYPE,
   LATEST_COMMIT_HASH,
+  ACRE_API_ENDPOINT,
 }
diff --git a/dapp/src/constants/time.ts b/dapp/src/constants/time.ts
index 0620f3abd..cffccbe3d 100644
--- a/dapp/src/constants/time.ts
+++ b/dapp/src/constants/time.ts
@@ -10,3 +10,7 @@ export const REFETCH_INTERVAL_IN_MILLISECONDS =
   ONE_SEC_IN_MILLISECONDS * ONE_MINUTE_IN_SECONDS * 5
 
 export const DATE_FORMAT_LOCALE_TAG = "us-US"
+
+// 7 days
+export const ACRE_SESSION_EXPIRATION_TIME =
+  ONE_WEEK_IN_SECONDS * ONE_SEC_IN_MILLISECONDS
diff --git a/dapp/src/hooks/index.ts b/dapp/src/hooks/index.ts
index 47ce5dd48..4aad5a775 100644
--- a/dapp/src/hooks/index.ts
+++ b/dapp/src/hooks/index.ts
@@ -32,3 +32,4 @@ export { default as useLocalStorage } from "./useLocalStorage"
 export { default as useDetectReferral } from "./useDetectReferral"
 export { default as useReferral } from "./useReferral"
 export { default as useMats } from "./useMats"
+export { default as useSignMessageAndCreateSession } from "./useSignMessageAndCreateSession"
diff --git a/dapp/src/hooks/useSignMessageAndCreateSession.ts b/dapp/src/hooks/useSignMessageAndCreateSession.ts
new file mode 100644
index 000000000..a59639595
--- /dev/null
+++ b/dapp/src/hooks/useSignMessageAndCreateSession.ts
@@ -0,0 +1,57 @@
+import { OrangeKitConnector } from "#/types"
+import { acreApi, orangeKit } from "#/utils"
+import { useCallback } from "react"
+import { useSignMessage } from "wagmi"
+
+function useSignMessageAndCreateSession() {
+  const { signMessageAsync, status: signMessageStatus } = useSignMessage()
+
+  const signMessageAndCreateSession = useCallback(
+    async (connectedConnector: OrangeKitConnector, btcAddress: string) => {
+      let session = await acreApi.getSession()
+      const hasSessionAddress = "address" in session
+
+      const isSessionAddressEqual = hasSessionAddress
+        ? (session as { address: string }).address === btcAddress
+        : false
+
+      if (hasSessionAddress && isSessionAddressEqual) {
+        return
+      }
+
+      if (hasSessionAddress && !isSessionAddressEqual) {
+        // Delete session.
+        await acreApi.deleteSession()
+        // Ask for nonce to create new session.
+        session = await acreApi.getSession()
+      }
+
+      if (!("nonce" in session)) {
+        throw new Error("Session nonce not available")
+      }
+
+      const message = orangeKit.createSignInWithWalletMessage(
+        btcAddress,
+        session.nonce,
+      )
+
+      const signedMessage = await signMessageAsync({
+        message,
+        connector: orangeKit.typeConversionToConnector(connectedConnector),
+      })
+
+      const publicKey = await connectedConnector
+        .getBitcoinProvider()
+        .getPublicKey()
+
+      await acreApi.createSession(message, signedMessage, publicKey)
+    },
+    [signMessageAsync],
+  )
+
+  return {
+    signMessageAndCreateSession,
+    signMessageStatus,
+  }
+}
+export default useSignMessageAndCreateSession
diff --git a/dapp/src/utils/acre-api.ts b/dapp/src/utils/acre-api.ts
new file mode 100644
index 000000000..8210f1d62
--- /dev/null
+++ b/dapp/src/utils/acre-api.ts
@@ -0,0 +1,41 @@
+import { env } from "#/constants"
+import axiosStatic from "axios"
+
+const axios = axiosStatic.create({
+  baseURL: env.ACRE_API_ENDPOINT,
+  withCredentials: true,
+})
+
+async function getSession() {
+  const response = await axios.get<{ nonce: string } | { address: string }>(
+    "session",
+  )
+
+  return response.data
+}
+
+async function createSession(
+  message: string,
+  signature: string,
+  publicKey: string,
+) {
+  const response = await axios.post<{ success: boolean }>("session", {
+    message,
+    signature,
+    publicKey,
+  })
+
+  if (!response.data.success) {
+    throw new Error("Failed to create Acre session")
+  }
+}
+
+async function deleteSession() {
+  await axios.delete("session")
+}
+
+export default {
+  createSession,
+  getSession,
+  deleteSession,
+}
diff --git a/dapp/src/utils/index.ts b/dapp/src/utils/index.ts
index 5cf970f2b..ba68a6887 100644
--- a/dapp/src/utils/index.ts
+++ b/dapp/src/utils/index.ts
@@ -17,3 +17,4 @@ export { default as userAgent } from "./userAgent"
 export { default as referralProgram } from "./referralProgram"
 export { default as mezoPortalAPI } from "./mezoPortalApi"
 export { default as router } from "./router"
+export { default as acreApi } from "./acre-api"
diff --git a/dapp/src/utils/orangeKit.ts b/dapp/src/utils/orangeKit.ts
index 20ee9f52b..27b8197cc 100644
--- a/dapp/src/utils/orangeKit.ts
+++ b/dapp/src/utils/orangeKit.ts
@@ -1,4 +1,8 @@
-import { CONNECTION_ERRORS, wallets } from "#/constants"
+import {
+  ACRE_SESSION_EXPIRATION_TIME,
+  CONNECTION_ERRORS,
+  wallets,
+} from "#/constants"
 import {
   ConnectionErrorData,
   OrangeKitError,
@@ -10,6 +14,7 @@ import {
 } from "@orangekit/react"
 import { Connector } from "wagmi"
 import { SignInWithWalletMessage } from "@orangekit/sign-in-with-wallet"
+import { getExpirationDate } from "./time"
 
 const getWalletInfo = (connector: OrangeKitConnector) => {
   switch (connector.id) {
@@ -37,7 +42,7 @@ const isConnectedStatus = (status: string) => status === "connected"
 const isOrangeKitConnector = (connector?: Connector) =>
   connector?.type === "orangekit"
 
-const createSignInWithWalletMessage = (address: string) => {
+const createSignInWithWalletMessage = (address: string, nonce: string) => {
   const { host: domain, origin: uri } = window.location
 
   const message = new SignInWithWalletMessage({
@@ -47,6 +52,10 @@ const createSignInWithWalletMessage = (address: string) => {
     issuedAt: new Date().toISOString(),
     version: "1",
     networkFamily: "bitcoin",
+    expirationTime: getExpirationDate(
+      ACRE_SESSION_EXPIRATION_TIME,
+    ).toISOString(),
+    nonce,
   })
 
   return message.prepareMessage()
diff --git a/dapp/src/utils/time.ts b/dapp/src/utils/time.ts
index bd40d351d..494d73ddc 100644
--- a/dapp/src/utils/time.ts
+++ b/dapp/src/utils/time.ts
@@ -84,13 +84,14 @@ export const displayBlockTimestamp = (blockTimestamp: number) => {
   return getRelativeTime(blockTimestamp)
 }
 
+export const getExpirationDate = (duration: number, startDate?: Date) => {
+  const date = startDate ?? new Date()
+  return new Date(date.getTime() + duration)
+}
+
 /**
  * Returns the expiration timestamp from the start date considering the specified duration.
  * If the startDate is not passed, the function will take the current time as the start date.
  */
-export const getExpirationTimestamp = (duration: number, startDate?: Date) => {
-  const date = startDate ?? new Date()
-  const expirationDate = new Date(date.getTime() + duration)
-
-  return dateToUnixTimestamp(expirationDate)
-}
+export const getExpirationTimestamp = (duration: number, startDate?: Date) =>
+  dateToUnixTimestamp(getExpirationDate(duration, startDate))
diff --git a/dapp/src/vite-env.d.ts b/dapp/src/vite-env.d.ts
index 556cb5767..9108fde70 100644
--- a/dapp/src/vite-env.d.ts
+++ b/dapp/src/vite-env.d.ts
@@ -16,6 +16,7 @@ interface ImportMetaEnv {
   readonly VITE_SUBGRAPH_API_KEY: string
   readonly VITE_MEZO_PORTAL_API_KEY: string
   readonly VITE_LATEST_COMMIT_HASH: string
+  readonly VITE_ACRE_API_ENDPOINT: string
 }
 
 interface ImportMeta {