diff --git a/api/.gcloudignore b/api/.gcloudignore
index 4d7d6938..971a225c 100644
--- a/api/.gcloudignore
+++ b/api/.gcloudignore
@@ -12,6 +12,7 @@
 # below:
 .git
 .gitignore
+.env.local
 
 # Node.js dependencies:
 node_modules/
\ No newline at end of file
diff --git a/api/.gitignore b/api/.gitignore
new file mode 100644
index 00000000..ef5eb9cb
--- /dev/null
+++ b/api/.gitignore
@@ -0,0 +1,2 @@
+.env.local
+.env.yaml
diff --git a/api/app.yaml b/api/app.yaml
index 078c8125..b0949a97 100644
--- a/api/app.yaml
+++ b/api/app.yaml
@@ -1,3 +1,3 @@
 runtime: nodejs20
-env_variables:
-  SOLANA_RPC: "https://api.devnet.solana.com"
+includes:
+  - .env.yaml
diff --git a/api/src/main.ts b/api/src/main.ts
index cac1b8f7..6ec91188 100644
--- a/api/src/main.ts
+++ b/api/src/main.ts
@@ -19,18 +19,32 @@ import { priceHistory, fundPerformance } from "./prices";
 import { openfunds } from "./openfunds";
 import { marinadeDelayedUnstakeTx, marinadeDelayedUnstakeClaimTx } from "./tx";
 
+if (process.env.NODE_ENV !== "production") {
+  require("dotenv").config({ path: ".env.local", override: true });
+}
+
 const BASE_URL = "https://api.glam.systems";
 const SOLANA_RPC = process.env.SOLANA_RPC || "http://localhost:8899";
+const SOLANA_MAINNET_KEY = process.env.SOLANA_MAINNET_KEY || "";
 
-const app: Express = express();
-app.use(cors({ origin: "*", methods: "GET" }));
-app.use(bodyParser.json());
+/* GlamClient for devnet and testnet */
 
-const connection = new Connection(SOLANA_RPC, "confirmed");
-const provider = new AnchorProvider(connection, null, {
+const devnetConnection = new Connection(SOLANA_RPC, "confirmed");
+const devnetProvider = new AnchorProvider(devnetConnection, null, {
   commitment: "confirmed"
 });
-const client = new GlamClient({ provider });
+const devnetClient = new GlamClient({ provider: devnetProvider });
+
+const mainnetConnection = new Connection(
+  `https://mainnet.helius-rpc.com/?api-key=${SOLANA_MAINNET_KEY}`,
+  "confirmed"
+);
+const mainnetProvider = new AnchorProvider(mainnetConnection, null, {
+  commitment: "confirmed"
+});
+const mainnetClient = new GlamClient({ provider: mainnetProvider });
+
+/* Pyth client */
 
 const PYTHNET_CLUSTER_NAME: PythCluster = "pythnet";
 const pythClient = new PythHttpClient(
@@ -39,12 +53,23 @@ const pythClient = new PythHttpClient(
   "confirmed"
 );
 
-app.use("/assets", express.static(path.join(__dirname, "assets")));
+/* Express app */
 
-app.get("/api", (req: Request, res: Response) => {
-  res.send({ message: "Welcome to Glam!" });
+const app: Express = express();
+app.use(cors({ origin: "*", methods: "GET" }));
+app.use(bodyParser.json());
+
+app.use((req, res, next) => {
+  if (req.hostname === "api.glam.systems") {
+    req.client = mainnetClient;
+  } else {
+    req.client = devnetClient;
+  }
+  next();
 });
 
+app.use("/assets", express.static(path.join(__dirname, "assets")));
+
 /*
  * Openfunds
  */
@@ -54,17 +79,23 @@ app.get("/openfunds", async (req, res) => {
     req.query.funds.split(","),
     req.query.template,
     req.query.format,
-    client,
+    req.client,
     res
   );
 });
 
 app.get("/openfunds/:pubkey.:ext", async (req, res) => {
-  return openfunds([req.params.pubkey], "auto", req.params.ext, client, res);
+  return openfunds(
+    [req.params.pubkey],
+    "auto",
+    req.params.ext,
+    req.client,
+    res
+  );
 });
 
 app.get("/openfunds/:pubkey", async (req, res) => {
-  return openfunds([req.params.pubkey], "auto", "json", client, res);
+  return openfunds([req.params.pubkey], "auto", "json", req.client, res);
 });
 
 /*
@@ -77,17 +108,26 @@ app.post("/tx/jupiter/swap", async (req, res) => {
 });
 
 app.post("/tx/marinade/unstake", async (req, res) => {
-  return marinadeDelayedUnstakeTx(client, req, res);
+  return marinadeDelayedUnstakeTx(req.client, req, res);
 });
 
 app.post("/tx/marinade/unstake/claim", async (req, res) => {
-  return marinadeDelayedUnstakeClaimTx(client, req, res);
+  return marinadeDelayedUnstakeClaimTx(req.client, req, res);
 });
 
 /*
  * Other
  */
 
+app.get("/api", (req: Request, res: Response) => {
+  res.send({ message: "Welcome to Glam!" });
+});
+
+app.get("/genesis", async (req: Request, res: Response) => {
+  const genesis = await mainnetClient.provider.connection.getGenesisHash();
+  res.send({ genesis });
+});
+
 app.get("/prices", async (req, res) => {
   const data = await pythClient.getData();
   res.set("content-type", "application/json");
@@ -216,7 +256,7 @@ app.get("/image/:pubkey.png", async (req, res) => {
 
 const port = process.env.PORT || 8080;
 const server = app.listen(port, () => {
-  console.log(`Listening at http://localhost:${port}/api`);
+  console.log(`Api ${process.env.NODE_ENV} at http://localhost:${port}`);
 });
 server.on("error", console.error);
 
diff --git a/package.json b/package.json
index a4956fe8..dd4c5d10 100644
--- a/package.json
+++ b/package.json
@@ -55,6 +55,7 @@
     "d3-cloud": "^1.2.7",
     "d3-sankey": "^0.12.3",
     "daisyui": "3.9.3",
+    "dotenv": "^16.4.5",
     "exceljs": "^4.4.0",
     "express": "^4.18.1",
     "jotai": "2.5.1",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 00fc9af4..83dc2dbd 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -131,6 +131,9 @@ importers:
       daisyui:
         specifier: 3.9.3
         version: 3.9.3(ts-node@10.9.2(@swc/core@1.5.3(@swc/helpers@0.5.11))(@types/node@18.19.32)(typescript@5.4.5))
+      dotenv:
+        specifier: ^16.4.5
+        version: 16.4.5
       exceljs:
         specifier: ^4.4.0
         version: 4.4.0
@@ -4579,6 +4582,10 @@ packages:
     resolution: {integrity: sha512-HTlk5nmhkm8F6JcdXvHIzaorzCoziNQT9mGxLPVXW8wJF1TiGSL60ZGB4gHWabHOaMmWmhvk2/lPHfnBiT78AQ==}
     engines: {node: '>=12'}
 
+  dotenv@16.4.5:
+    resolution: {integrity: sha512-ZmdL2rui+eB2YwhsWzjInR8LldtZHGDoQ1ugH85ppHKwpUHL7j7rN0Ti9NCnGiQbhaZ11FpR+7ao1dNsmduNUg==}
+    engines: {node: '>=12'}
+
   downshift@8.5.0:
     resolution: {integrity: sha512-BAr/KAZX8GGARwWl4aER6ABv8aAaRXZcVKP0m1oFPKpSIXCGuoqnhi6nRf87glHhYDd/CCPp9RVUK27JKJD/Fw==}
     peerDependencies:
@@ -12481,7 +12488,7 @@ snapshots:
     dependencies:
       '@solana/web3.js': 1.91.8(bufferutil@4.0.8)(utf-8-validate@5.0.10)
       bs58: 5.0.0
-      dotenv: 16.3.2
+      dotenv: 16.4.5
     transitivePeerDependencies:
       - bufferutil
       - encoding
@@ -15191,6 +15198,8 @@ snapshots:
 
   dotenv@16.3.2: {}
 
+  dotenv@16.4.5: {}
+
   downshift@8.5.0(react@18.2.0):
     dependencies:
       '@babel/runtime': 7.24.5