# AVALO AI Agent Sandbox & Self-Serve Free Tier Documentation

AVALO provides an immediate sandbox environment for autonomous AI agents and developers with zero human onboarding friction.

## Free Tier Access Rules

- **No Registration**: Immediate access without sign-up or credit card.
- **Rate Limit**: 120 requests/minute per IP address (RFC standard headers returned).
- **Demo Key**: `X-API-Key: demo_sandbox_key` (optional, unauthenticated calls accepted in sandbox).

## Sandbox Endpoint

URL: `https://avalo.vn/api/v1/sandbox`

### Sample Query:
curl -sS -X POST https://avalo.vn/api/v1/sandbox -H 'Content-Type: application/json' -d '{"property_type": "villa", "area_m2": 300, "style": "modern_luxury"}'