How it works

Onboarding

1. Register with email + DNI. Identity verified in ~2 minutes.
2. Receive your CVU — a prepaid account ready to receive funds.
3. Fund your wallet from any bank, Mercado Pago, or Ualá. Balance is instant.
4. Generate an API key per agent — set a threshold, assign scopes, get your nz_sk_live_... key. The MCP server and REST API are immediately available.

Two execution flows

Under the threshold — agent executes autonomously

AGENT → nuez API → POLICY (amount < threshold ✓) → RAIL (Transferencias 3.0) → WEBHOOK

Total time: ~2.4 seconds. No human involved.

Over the threshold — WhatsApp approval

1. Agent requests a transfer (e.g. $847,230 → AWS LATAM SRL)
2. Policy detects amount ≥ threshold and pauses execution — does not fail, does not timeout
3. Push notification via WhatsApp to the account owner with amount, destination, and context
4. Owner approves or rejects with a tap. A signed webhook is sent to the agent with the result.

Design principle: the human only appears when it matters. Below the threshold, full autonomy. Above it, frictionless approval.

Architecture

┌─────────────────┐
│   AI Agent      │  Claude, GPT, custom agent
└────────┬────────┘
         │  MCP tool call  OR  REST API call
         ▼
┌─────────────────┐
│   nuez API      │  api.nuez.app/v1
└────────┬────────┘
         │
         ▼
┌─────────────────┐
│  Policy engine  │  threshold · scopes · allowlist
└────────┬────────┘
         │
    ┌────┴────┐
    │         │
    ▼         ▼
 Execute   Pause + notify WhatsApp
    │         │
    └────┬────┘
         ▼
┌─────────────────┐
│  Transferencias │  Argentine payment rail (CVU/CBU/alias)
│  3.0 via BIND   │
└─────────────────┘
         │
         ▼
  Signed webhook → agent