The missing layer for AI apps

// app/api/chat/route.ts (Next.js App Router)
import { createResolveMiddleware } from "@restormel/keys";

const resolve = createResolveMiddleware({
  // Provider access stays in your stack (env vars, secret manager, or a gateway like OpenRouter/Portkey/Vercel AI Gateway).
  // Restormel resolves routing + policy; you decide how to supply provider access.
  providers: ["openai", "anthropic"],
});

export async function POST(req: Request) {
  const { model, messages } = await req.json();
  const { provider } = await resolve(model);

  // Example: builder-managed direct provider mode (keys live in your env/secrets manager).
  const apiKey =
    provider.type === "openai" ? process.env.OPENAI_API_KEY :
    provider.type === "anthropic" ? process.env.ANTHROPIC_API_KEY :
    undefined;
  if (!apiKey) return new Response("Missing provider access", { status: 500 });

  const res = await fetch(provider.chatUrl, {
    method: "POST",
    headers: { "Authorization": `Bearer ${apiKey}` },
    body: JSON.stringify({ model, messages }),
  });
  return Response.json(await res.json());
}

// app/settings/page.tsx
import { KeyManager } from "@restormel/keys-react";

export default function Settings() {
  return (
    <KeyManager
      keys={keys}
      onKeyAdded={handleAdd}
      userId={user.id}
    />
  );
}