Avanan MSP (Legacy SmartAPI)

Connects to Avanan's legacy MSP SmartAPI for managing multi-tenant email security deployments. You get full CRUD on child MSP partners, users, customer tenants, and license assignments, plus monthly and daily usage reporting. Authentication uses a three-part HMAC scheme with app ID, token, and shared secret. The signing implementation is a best-guess HMAC-SHA256 since the API guide defers to another doc, so you'll want to verify signRequest() against Avanan's actual spec before production. Supports US, EU, CA, and AP regional endpoints and includes a gateway mode that pulls credentials from per-request headers. Reach for this if you're running an MSP reselling Avanan and need programmatic tenant provisioning and license management.