diff --git a/src/lib/api-v1/openapi/spec.ts b/src/lib/api-v1/openapi/spec.ts
new file mode 100644
index 00000000..df12687e
--- /dev/null
+++ b/src/lib/api-v1/openapi/spec.ts
@@ -0,0 +1,24 @@
+import { OpenAPIRegistry, OpenApiGeneratorV3 } from "@asteasolutions/zod-to-openapi";
+import "@/lib/api-v1/openapi/registry";
+import { registerSecuritySchemes } from "@/lib/api-v1/openapi/security";
+import { registerAgentRoutes } from "@/lib/api-v1/openapi/routes/agents";
+import { registerDatabaseRoutes } from "@/lib/api-v1/openapi/routes/databases";
+
+export function buildSpec() {
+  const registry = new OpenAPIRegistry();
+
+  registerSecuritySchemes(registry);
+  registerAgentRoutes(registry);
+  registerDatabaseRoutes(registry);
+
+  return new OpenApiGeneratorV3(registry.definitions).generateDocument({
+    openapi: "3.0.0",
+    info: {
+      title: "Portabase API",
+      version: "1.0.0",
+      description:
+        "Authenticate all requests using the x-api-key header with an API key generated from the Portabase dashboard.",
+    },
+    servers: [{ url: "/api/v1" }],
+  });
+}