diff --git a/.changeset/long-flies-look.md b/.changeset/long-flies-look.md
new file mode 100644
index 0000000000..c42c1647d5
--- /dev/null
+++ b/.changeset/long-flies-look.md
@@ -0,0 +1,5 @@
+---
+"@workflow/world-vercel": patch
+---
+
+Allow overwriting backend URL via env variable
diff --git a/packages/world-vercel/src/utils.ts b/packages/world-vercel/src/utils.ts
index b8dc85de71..6a91ddd34d 100644
--- a/packages/world-vercel/src/utils.ts
+++ b/packages/world-vercel/src/utils.ts
@@ -155,12 +155,15 @@ export const getHttpUrl = (
   const projectConfig = config?.projectConfig;
   const defaultHost =
     WORKFLOW_SERVER_URL_OVERRIDE || 'https://vercel-workflow.com';
+  const customProxyUrl = process.env.WORKFLOW_VERCEL_BACKEND_URL;
   const defaultProxyUrl = 'https://api.vercel.com/v1/workflow';
   // Use proxy when we have project config (for authentication via Vercel API)
   const usingProxy = Boolean(projectConfig?.projectId && projectConfig?.teamId);
   // When using proxy, requests go through api.vercel.com (with x-vercel-workflow-api-url header if override is set)
   // When not using proxy, use the default workflow-server URL (with /api path appended)
-  const baseUrl = usingProxy ? defaultProxyUrl : `${defaultHost}/api`;
+  const baseUrl = usingProxy
+    ? customProxyUrl || defaultProxyUrl
+    : `${defaultHost}/api`;
   return { baseUrl, usingProxy };
 };