> ## Documentation Index > Fetch the complete documentation index at: https://docs.amps.ai/llms.txt > Use this file to discover all available pages before exploring further. # Get Sandbox Access > Request a sandbox API key. Build and test integrations against simulated devices across every supported OEM, with no live credentials required. The sandbox simulates the full canonical surface across every device type: batteries, EV chargers, HVAC, solar inverters, and vehicles. Build and test integrations without managing OEM credentials, real homeowners, or live grid risk. Submit the form and sandbox keys land within one business day. ## What you get * A sandbox API key with the `sk_test_` prefix that routes to the sandbox environment at `https://api.amps.ai` * Pre-provisioned simulated devices across all five DER categories (battery, EV charger, HVAC, solar inverter, vehicle) * The full canonical surface: pull device state, push actions, receive webhooks * UTC-driven simulations that follow realistic time-of-day patterns, so the data you see during integration testing reflects how live devices behave ## What it costs you Nothing. Sandbox access is free during development. You only need a live key once you are integrating against real devices, and live keys come with their own onboarding. ## What is next Once your sandbox key arrives, follow the [quickstart](/get-started/quickstart) to make your first API call. The same code works against the live environment when you are ready: swap your `sk_test_` key for an `sk_live_` key, with the host unchanged.