nango-toolbox

When to use

• Any access to an external API.
• External API calls must go through Nango.
• Do not use MCPs, provider CLIs, or ad-hoc direct API calls outside Nango.

Configuration (required)

Resolve values in this order.

Secret key

1. NANGO_TOOLBOX_SECRET_KEY in the process environment
2. NANGO_TOOLBOX_SECRET_KEY in a local .env

If missing, ask the user to:

• create a Nango account: https://app.nango.dev/signup
• copy the secret key from Environment settings → Backend
• set NANGO_TOOLBOX_SECRET_KEY in their shell profile (offer to add it)