Custom APIs | Extend Shopify into a fully programmable commerce system

Go beyond the constraints of Shopify’s standard Storefront and Admin APIs. SLTWTR delivers custom API endpoints that extend Shopify into a fully programmable commerce system, tailored to your business logic, workflows, and data needs.

We design and implement bespoke REST and GraphQL endpoints to handle complex operations, orchestrate background jobs, and expose structured access to commerce data in ways native APIs cannot support.

All endpoints are built directly within the Shopify environment and can be mounted to your store’s primary domain. This enables secure, first-party access without CORS limitations, while preserving full storefront context, including authenticated customer state, cart contents, and session-level attributes.

The result is a flexible, high-performance interface layer that allows your storefront, integrations, and internal systems to interact with Shopify as a unified, extensible platform.