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Join Markt exposes authenticated HTTP APIs for the vendor dashboard, storefront clients, and platform admin. Most seller tooling talks to the dashboard origin.

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Base URL

Local development typically uses:
Storefront-facing routes also exist under the store host and the marketing host where noted (for example checkout and public product reads).

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Response shape

Successful JSON responses usually return a payload object (sometimes wrapped). Errors return HTTP status codes with a machine-readable error or message field. Always check status before parsing.

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Versioning

Dashboard session routes use unversioned paths (/api/dashboard/..., /api/orders, etc.). Merchant integrations use a versioned prefix:
Authenticate merchant routes with Authorization: Bearer mk_live_... — not session cookies.