> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.modernfi.com/topics/using-the-sandbox/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.modernfi.com/_mcp/server.

# Using the Sandbox

ModernFi provides a sandbox environment for safely testing the public API. The sandbox is designed to mimic production while keeping your test data isolated from live financial data.

**How it works**: The sandbox runs on the same production-grade infrastructure as our live environment but uses a separate, isolated institution dedicated to your testing. Your test data and actions do not impact real customer data or data from other institutions.

**How to connect**: When authenticating and sending requests, use the production endpoints:

```null
auth.modernfi.com api.modernfi.com
```

Your institution will be set up in sandbox mode, so while the endpoints appear to be production, all activity is scoped to your isolated institution.

**Credentials:** You will receive sandbox-specific credentials for your isolated institution. Use these with the production endpoints as shown above. Credentials are delivered via SendSafely.

**What runs automatically:** The sandbox runs a daily allocation job, consistent with production behavior. Note that interest amounts may not reflect exact production rates.

**Statements**: Monthly statements are generated in the sandbox on the same cadence as production. Mid-month statements cannot be generated on demand. Sandbox statements do not include institution branding.