Changelog - Fourthwall Developer Docs

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StorefrontAPI

Bundles in the Storefront API

Bundles are now sellable through the Storefront API. Get Product and Get Collection Products return either a product (type: PRODUCT) or a bundle (type: BUNDLE) with root-level price, compareAtPrice, pricingStrategy and the bundled products under offers.
Create Cart and Add to Cart accept bundleId on cart items; bundle items come back grouped via groupedBy. See Adding a bundle.
Heads-up: regular products gain a type: "PRODUCT" field. Bundles were previously returned as a sold-out product with a placeholder variant; they are now a distinct shape without variants - read offers[].variants instead.

AIMCP

ChatGPT & Claude apps + MCP tool sync

Rewrote the Claude app page as a combined ChatGPT & Claude App guide covering both assistants.
Synced the MCP server tool list with the server’s default tools.
Added a Codex CLI setup tab and documented the per-request rate-limit override mechanism.

Channel APIAIStreamingBeta

Channel API (Beta), MCP app guide, and Streaming Gifting

Unhid the Channel API (Beta) and added the platform and agency integration guides. Access tokens are now documented on the single Authentication page.
Added a Build an MCP App guide and documented the MCP write & management tools.
Added the Streaming Gifting guide for the gift-purchase flow.
Documented HTML section schemas for HTML Sections.

ProductsAPIStreamingBeta

Product guides, Product Templates, and rate limits

Split the products guide into Create digital products and Create design products (Beta), and documented the media-upload PUT contract.
Exposed the Product Templates list endpoints on the Platform API.
Surfaced rate limits on every endpoint and refreshed the order specs.
Added the Streaming Alerts guide.

AIStorefrontHTML Sections

AI section, Shop APIs, and HTML Sections

Launched the AI section, including the initial Claude app guide and MCP server docs.
Added the Shop APIs section covering the cart checkout endpoint and shop feeds.
Documented rendering Liquid in HTML Sections and renamed “custom HTML” to “custom code”.