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The Fourthwall Platform API is a RESTful API that allows you to manage various aspects of your shop. It can be accessed either directly using your own API key (this gives you full access to your own shop) or indirectly through OAuth for multi-shop apps.

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OpenAPI Specs

Full OpenAPI specifications are available in both JSON and YAML formats:
SpecJSONYAML
Platform APIopen-api.jsonopen-api.yaml
Storefront APIstorefront.jsonstorefront.yaml
Use these to generate client SDKs, import into tools like Postman, or integrate with any OpenAPI-compatible tooling.

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Authentication Methods

API Key

Direct shop access with Basic Auth credentials

OAuth

Multi-shop app authentication with access tokens