diff --git a/apps/playground/src/components/layouts/sidebar/index.tsx b/apps/playground/src/components/layouts/sidebar/index.tsx
index bee78460..58ae6e54 100644
--- a/apps/playground/src/components/layouts/sidebar/index.tsx
+++ b/apps/playground/src/components/layouts/sidebar/index.tsx
@@ -15,7 +15,7 @@ export default function Sidebar({
               {sidebarItems.map((item, i) => {
                 return (
                   <li key={i}>
-                    {item.to.startsWith("/") ? (
+                    {item.to.startsWith("/") || item.to.startsWith("http") ? (
                       <Link href={item.to}>{item.label}</Link>
                     ) : (
                       <LinkWithinPage key={i} item={item} />
diff --git a/apps/playground/src/data/links-yaci.ts b/apps/playground/src/data/links-yaci.ts
index a151d633..3bd23352 100644
--- a/apps/playground/src/data/links-yaci.ts
+++ b/apps/playground/src/data/links-yaci.ts
@@ -1,5 +1,10 @@
 import { MenuItem } from "~/types/menu-item";
 
+export const metaYaciHosted = {
+  title: "Hosted Yaci Devnet",
+  desc: "Connect to the hosted Yaci Devnet",
+  link: "https://cloud.meshjs.dev/yaci",
+};
 export const metaYaciGettingStarted = {
   title: "Getting Started",
   desc: "Set up Yaci Dev Kit and start the devnet",
@@ -17,6 +22,7 @@ export const metaYaciProvider = {
 };
 export const linksYaci: MenuItem[] = [
   metaYaciGettingStarted,
+  metaYaciHosted,
   metaYaciTransactions,
   metaYaciProvider,
 ];
diff --git a/apps/playground/src/hooks/useProviders.ts b/apps/playground/src/hooks/useProviders.ts
index 61e51b74..4ff5dfe9 100644
--- a/apps/playground/src/hooks/useProviders.ts
+++ b/apps/playground/src/hooks/useProviders.ts
@@ -31,7 +31,7 @@ export const useProviders = create<State>(
         set({ maestroKey: { network, apiKey } }),
       koiosKey: undefined,
       setKoiosKey: (network, apiKey) => set({ koiosKey: { network, apiKey } }),
-      yaciUrl: "http://localhost:8080/api/v1/",
+      yaciUrl: "https://yaci-node.meshjs.dev/api/v1/",
       setYaciUrl: (url) => set({ yaciUrl: url }),
       ogmiosUrl: "",
       setOgmiosUrl: (url) => set({ ogmiosUrl: url }),
diff --git a/apps/playground/src/pages/apis/wallets/meshwallet/sign-data.tsx b/apps/playground/src/pages/apis/wallets/meshwallet/sign-data.tsx
index c9cca0a2..f41cfeaf 100644
--- a/apps/playground/src/pages/apis/wallets/meshwallet/sign-data.tsx
+++ b/apps/playground/src/pages/apis/wallets/meshwallet/sign-data.tsx
@@ -35,6 +35,10 @@ function Left() {
         to sign arbitrary data, to verify the data was signed by the owner of
         the private key.
       </p>
+      <p>
+        <code>signData</code> takes two arguments, the first one is the payload
+        to sign and the second one is the address (optional).
+      </p>
       <p>Example of a response from the endpoint:</p>
       <Codeblock data={example} />
       <p>
diff --git a/apps/playground/src/pages/guides/prove-wallet-ownership/index.mdx b/apps/playground/src/pages/guides/prove-wallet-ownership/index.mdx
index 76dd0fb1..dc548e82 100644
--- a/apps/playground/src/pages/guides/prove-wallet-ownership/index.mdx
+++ b/apps/playground/src/pages/guides/prove-wallet-ownership/index.mdx
@@ -99,7 +99,7 @@ Lastly, we will return the **nonce** for the user to sign using their private ke
 
 ## Client: Verify ownership by signing the nonce
 
-We are ready to use the private key associated with the wallet to sign the nonce with **await wallet.signData(userAddress, nonce)**, which enables the dApp to request the user to sign a payload according to [CIP-8](https://cips.cardano.org/cips/cip8/).
+We are ready to use the private key associated with the wallet to sign the nonce with **await wallet.signData(nonce, userAddress)**, which enables the dApp to request the user to sign a payload according to [CIP-8](https://cips.cardano.org/cips/cip8/).
 
 We request the user's authorization and show them the message that is to be signed: **Sign to login in to Mesh: nonce**. Once accepted, the signature will be generated and the dApp will process the signature to authenticate the user.
 
@@ -107,7 +107,7 @@ We request the user's authorization and show them the message that is to be sign
 async function frontendSignMessage(nonce) {
   try {
     const userAddress = (await wallet.getRewardAddresses())[0];
-    const signature = await wallet.signData(userAddress, nonce);
+    const signature = await wallet.signData(nonce, userAddress);
 
     // do: send request with 'signature' and 'userAddress' to the backend
   } catch (error) {
@@ -175,7 +175,7 @@ export default function Page() {
   async function frontendSignMessage(nonce) {
     try {
       const userAddress = (await wallet.getRewardAddresses())[0];
-      const signature = await wallet.signData(userAddress, nonce);
+      const signature = await wallet.signData(nonce, userAddress);
       await backendVerifySignature(userAddress, signature);
     } catch (error) {
       setState(0);
diff --git a/apps/playground/src/pages/yaci/getting-started/hosted.tsx b/apps/playground/src/pages/yaci/getting-started/hosted.tsx
new file mode 100644
index 00000000..4ad130de
--- /dev/null
+++ b/apps/playground/src/pages/yaci/getting-started/hosted.tsx
@@ -0,0 +1,46 @@
+import Link from "~/components/link";
+import TwoColumnsScroll from "~/components/sections/two-columns-scroll";
+import Codeblock from "~/components/text/codeblock";
+
+export default function YaciHosted() {
+  return (
+    <TwoColumnsScroll
+      sidebarTo="hosted"
+      title="Mesh Hosted Yaci Devnet"
+      leftSection={Left()}
+    />
+  );
+}
+
+function Left() {
+  let code = "";
+  code += `import { YaciProvider } from "@meshsdk/core";\n`;
+  code += `\n`;
+  code += `const blockchainProvider = new YaciProvider();\n`;
+  code += `const params = await blockchainProvider.fetchProtocolParameters();\n`;
+  code += `console.log(params);\n`;
+
+  return (
+    <>
+      <h3>Connect right away with Yaci Provider</h3>
+      <p>
+        Mesh has a hosted Yaci Devnet that you can connect to right away. You
+        can use the following URL to connect to the hosted Yaci Devnet:
+      </p>
+      <Codeblock data={`https://yaci-node.meshjs.dev/api/v1/`} />
+      <h3>Import Yaci Provider</h3>
+      <p>
+        Import <code>YaciProvider</code> and start using it to interact with the
+        Yaci Devnet.
+      </p>
+      <Codeblock data={code} />
+      <p>
+        <Link href="/yaci/transactions/provider">
+          Learn more about Yaci Provider
+        </Link>{" "}
+        and learn more about{" "}
+        <Link href="https://cloud.meshjs.dev/yaci">hosted Yaci Devnet</Link>
+      </p>
+    </>
+  );
+}
diff --git a/apps/playground/src/pages/yaci/getting-started/index.tsx b/apps/playground/src/pages/yaci/getting-started/index.tsx
index 33d0c61f..028fda42 100644
--- a/apps/playground/src/pages/yaci/getting-started/index.tsx
+++ b/apps/playground/src/pages/yaci/getting-started/index.tsx
@@ -6,6 +6,7 @@ import Metatags from "~/components/site/metatags";
 import { metaYaciGettingStarted } from "~/data/links-yaci";
 import { getPageLinks } from "../common";
 import YaciCommands from "./commands";
+import YaciHosted from "./hosted";
 import YaciSetup from "./setup";
 import YaciStart from "./start";
 
@@ -24,6 +25,7 @@ const ReactPage: NextPage = () => {
           <></>
         </TitleIconDescriptionBody>
 
+        <YaciHosted />
         <YaciSetup />
         <YaciStart />
         <YaciCommands />
diff --git a/apps/playground/src/pages/yaci/transactions/basic-transaction.tsx b/apps/playground/src/pages/yaci/transactions/basic-transaction.tsx
index 4bb95558..0b79a3b6 100644
--- a/apps/playground/src/pages/yaci/transactions/basic-transaction.tsx
+++ b/apps/playground/src/pages/yaci/transactions/basic-transaction.tsx
@@ -68,7 +68,7 @@ function Left() {
 function Right() {
   const [userInput, setUserInput] = useState<string>(yaci.address);
   const [userInput2, setUserInput2] = useState<string>(
-    "http://localhost:8080/api/v1/",
+    "https://yaci-node.meshjs.dev/api/v1/",
   );
 
   async function runDemo() {
diff --git a/apps/playground/src/pages/yaci/transactions/provider.tsx b/apps/playground/src/pages/yaci/transactions/provider.tsx
index a692f0e7..75bbbf6e 100644
--- a/apps/playground/src/pages/yaci/transactions/provider.tsx
+++ b/apps/playground/src/pages/yaci/transactions/provider.tsx
@@ -31,7 +31,7 @@ function Left() {
       />
       <p>
         By default, the <code>YaciProvider</code> will use the default URL,{" "}
-        <code>http://localhost:8080/api/v1/</code>. If you want to use a custom
+        <code>https://yaci-node.meshjs.dev/api/v1/</code>. If you want to use a custom
         URL, you can pass it as a parameter.
       </p>
       <p>
@@ -54,7 +54,7 @@ function Right() {
     demoAddresses.testnetPayment,
   );
   const [userInput2, setUserInput2] = useState<string>(
-    "http://localhost:8080/api/v1/",
+    "https://yaci-node.meshjs.dev/api/v1/",
   );
 
   async function runDemo() {
diff --git a/packages/mesh-provider/src/yaci.ts b/packages/mesh-provider/src/yaci.ts
index 044d7986..ae2d779e 100644
--- a/packages/mesh-provider/src/yaci.ts
+++ b/packages/mesh-provider/src/yaci.ts
@@ -35,7 +35,7 @@ export class YaciProvider
    * Set the URL of the instance.
    * @param baseUrl The base URL of the instance.
    */
-  constructor(baseUrl = "http://localhost:8080/api/v1/") {
+  constructor(baseUrl = "https://yaci-node.meshjs.dev/api/v1/") {
     this._axiosInstance = axios.create({
       baseURL: baseUrl,
     });
diff --git a/packages/mesh-provider/test/yaci/evaluator.test.ts b/packages/mesh-provider/test/yaci/evaluator.test.ts
index 2e0a90d5..b628a2ec 100644
--- a/packages/mesh-provider/test/yaci/evaluator.test.ts
+++ b/packages/mesh-provider/test/yaci/evaluator.test.ts
@@ -1,6 +1,6 @@
 import { YaciProvider } from "@meshsdk/provider";
 
-const provider = new YaciProvider("http://localhost:8080/api/v1/");
+const provider = new YaciProvider("https://yaci-node.meshjs.dev/api/v1/");
 
 const successTx =
   "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";