Backend

Supabase

Score a signup from a Supabase Edge Function or a database trigger.

What exists today

A plain fetch from an Edge Function. Keep the API key in Supabase's secrets, never in a client-side call, or anyone can read it out of your app.

Setup

  1. 1supabase secrets set LAYERCALL_API_KEY=your_key
  2. 2In an Edge Function, POST to /v1/score/user with the new user's ip, email and phone.
  3. 3Act on verdict — reject, flag for review, or require email verification.
  4. 4Call it from an auth hook or a trigger so it cannot be skipped by a client that talks to the database directly.

Code

const res = await fetch("https://www.layercall.com/v1/score/user", {
  method: "POST",
  headers: {
    "X-Api-Key": Deno.env.get("LAYERCALL_API_KEY")!,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({ ip, email, phone }),
});
const { verdict, risk_score } = await res.json();
if (verdict === "block") throw new Error("Signup rejected");

Questions

Can I call this from the browser?

No. Any key shipped to a browser is public the moment someone opens devtools, and it would be billed against your account by whoever finds it. Call it from an Edge Function or your backend.

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