Get the brand bound to this API key
Returns { brand } — the single brand bound to the API key. Check ready (status === "completed") before calling POST /v1/emails, which returns 422 BRAND_NOT_READY until brand extraction finishes.
Embed the design context in the same call with ?include=identity,emailDesign,imageStyle,logos (comma-separated). identity is the structured brand facts; emailDesign / imageStyle are the markdown design system the email agent follows; logos is the CDN logo set. The paginated image library is a separate read (GET /v1/brand/images).
Authorizations
Send your Brew API key as Authorization: Bearer brew_xxx.
Headers
The brand this request acts on. REQUIRED for organization-scoped credentials (otherwise 400 BRAND_ID_REQUIRED — there is no default brand); list ids with GET /v1/brands. Brand-scoped credentials may omit it, and sending a different brand returns 403 BRAND_SCOPE_MISMATCH. A brand outside your organization returns 404 BRAND_NOT_FOUND.
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