diff --git a/frontend/proxy.conf.parameterized.js b/frontend/proxy.conf.parameterized.js
new file mode 100644
index 000000000..eee9bf1f7
--- /dev/null
+++ b/frontend/proxy.conf.parameterized.js
@@ -0,0 +1,36 @@
+const fs = require('fs');
+
+const PROXY_CONFIG = require('./proxy.conf');
+
+const addApiKeyHeader = (proxyReq, req, res) => {
+  if (process.env.MEMPOOL_CI_API_KEY) {
+    proxyReq.setHeader('X-Mempool-Auth', process.env.MEMPOOL_CI_API_KEY);
+  }
+};
+
+PROXY_CONFIG.forEach((entry) => {
+  const mempoolHostname = process.env.MEMPOOL_HOSTNAME
+    ? process.env.MEMPOOL_HOSTNAME
+    : 'mempool.space';
+
+  const liquidHostname = process.env.LIQUID_HOSTNAME
+    ? process.env.LIQUID_HOSTNAME
+    : 'liquid.network';
+
+  entry.target = entry.target.replace('mempool.space', mempoolHostname);
+  entry.target = entry.target.replace('liquid.network', liquidHostname);
+
+  if (entry.onProxyReq) {
+    const originalProxyReq = entry.onProxyReq;
+    entry.onProxyReq = (proxyReq, req, res) => {
+      originalProxyReq(proxyReq, req, res);
+      if (process.env.MEMPOOL_CI_API_KEY) {
+        proxyReq.setHeader('X-Mempool-Auth', process.env.MEMPOOL_CI_API_KEY);
+      }
+    };
+  } else {
+    entry.onProxyReq = addApiKeyHeader;
+  }
+});
+
+module.exports = PROXY_CONFIG;