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The ERP API lets you read and manipulate data in JTL-Wawi: orders, products, customers, invoices, inventory, and more. It is available as a REST API (all versions) and, starting with v2.0, as a GraphQL API.

Integration Overview

Auth, headers, deployment variants, and how to make your first call.

GraphQL Playground

Available in v2.0. Browse the schema and run queries interactively.

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OpenAPI Spec

Download the spec for any supported version. Import into Postman, Insomnia, or generate a client.
VersionStatusSpec
v2.0Latest, recommendedDownload JSON
v1.3SupportedDownload JSON
v1.2SupportedDownload JSON
v1.1SupportedDownload JSON
v1.0SupportedDownload JSON