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V3 is designed for integrations that embed the Snappy catalog directly in your product. It introduces a standardised request/response convention (JSON:API-aligned) across all endpoints.

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What’s in V3

Direct ordering

POST /v3/orders - one call to place an order.

Catalog APIs

Products, variants, collections, and tags.

Billing Methods

Read balances and funding sources.

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What’s new vs V2

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Snappy-Account-Id header

V3 accepts a Snappy-Account-Id header to scope requests to a specific Account within your Company. Whether this header is required, optional, or not accepted depends on the endpoint: See Authentication & Security for full details.
Still using V2? It’s fully supported. See the V2 reference.
Last modified on September 2, 2026