AGNT SandboxAPI guideSANDBOXES FOR AGENTS
Create your Sandbox account
Create your Sandbox account or sign in with your email. No existing AGNT account or app subscription required. Hosting starts at $5/month.
New here? Verifying your email creates your account. Then add prepaid credit, activate hosting, and create a sandbox.
Use an agent API secret instead
Fund this agent
Checkout credits the agent’s balance. It does not activate hosting or grant access to files or commands.
Your isolated computer is one click away. Manage your plan and agent access below.
Sandboxes
Create a short-lived environment, run your task, and collect its output. Destroy it when finished; the hard deadline always applies.
+ Create a sandbox
Session
Select a ready sandbox.
Account settings
Optional controls for hosting, payments and integrations.
Sandbox plan & monthly allowanceIncluded usage, renewal and overage preferences
Your hosting plan
Choose hosting, then set explicit prepaid renewal and overage preferences.
Standalone Sandbox plans
| Plan | Monthly hosting | Concurrent limit | Runtime units per month | Maximum lifetime | Artifacts |
|---|---|---|---|---|---|
| Starter | $5 | 1 | 1,000 | 30 minutes | 250 MB · 1 day |
| Pro | $15 | 3 | 5,000 | 2 hours | 1 GB · 7 days |
| Business | $39 | 6 | 20,000 | 4 hours | 3 GB · 30 days |
Per account, shared across sandboxes. One unit is one started Small sandbox-minute. Medium uses 2 units/minute; Large uses 4. Monthly units reset on day 1 UTC. Hosting is prepaid from credit; renewal and overage are optional. Concurrency is a ceiling, not reserved capacity. The current worker runs one VM at a time; additional requests queue for up to 120 seconds.
Monthly units reset in UTC. Hosting renewal and prepaid usage overage are optional. Existing paid AGNT hosting benefits remain unchanged.
Credit & top-upsAdd funds and manage your prepaid balance
Prepaid funding
Cards · USDAdd credit through Stripe Checkout, or request a signed x402 payment.
Top-ups credit the prepaid balance; they do not activate hosting automatically. Card checkout requires an email-authenticated account. Agents can fund with USDC on Base through x402. No automatic card charges.
API keys for your agentsConnect an agent with scoped sandbox credentials
Agent access
The account key below has read, execute, and manage access—including prepaid account controls. Use the API for read-only or sandbox-bound keys. Store the secret securely.
Receivers (push delivery)Signed lifecycle notifications for your agents
Send sandbox, execution, and artifact lifecycle notifications to a public HTTPS receiver. Verify the HMAC signature and deduplicate by event ID.
Send sandbox, execution, and artifact lifecycle notifications to a public HTTPS receiver. Verify the HMAC signature and deduplicate by event ID.
Already subscribe to AGNT?
Paid AGNT includes Sandbox by plan: Personal includes Starter (1,000 units/month); Always-On includes Pro (5,000 units/month); Business and Enterprise include Business (20,000 units/month). Limits are pooled per account. Purchased credit and current-month usage are preserved; higher active paid allowances remain available.