Ad tag reference: VAST, IAB sizes, and macros
Offsite tags and ad server tags use standard IAB formats so any DSP, SSP, or ad server can run them.
Formats
| Format | Use | Notes |
|---|---|---|
| VAST 4.2 | Video slots, CTV | Includes AdVerifications for viewability |
| JavaScript tag | Display slots | Renders the Genuin player in an iframe-safe wrapper |
| OpenRTB bid request fields | Programmatic | site.content.cat, site.content.context, brand safety profile in ext.genuin.bsp |
Macros
| Macro | Meaning |
|---|---|
| {CLICK_URL} | Buyer's click tracker |
| {CACHEBUSTER} | Random number |
| {GDPR}, {GDPR_CONSENT}, {US_PRIVACY}, {GPP} | Consent strings |
| {PLACEMENT_ID} | Buyer's placement identifier |
| {DEVICE_ID} | Only when consent allows |
Sizes – all IAB standard sizes plus vertical video 9:16; see Player card sizes and IAB footprint spec for the card footprint rule.
How it runs
None of this has to be implemented by hand: the snippets, keys, tags, and calls are generated for your stack and opened as changes in your repository or CMS where connected, for your Developer to approve.
Support. Help is available 24/7 from Brand Control Center and from every page of these docs. Ask in plain language; when a person is needed, an account manager, developer, or Ops engineer joins the same thread and stays on it until it is resolved. Every Business Account owner has this on every plan (see 24/7 Octo-enabled support: how Octo brings in account managers, developers, and Ops).
API & SDK
Access: the calls in the table are the proposed Business Account API (see Business Account API: provisioning, OAuth, and the resource map), authenticated with a key scoped to the account and a role or an OAuth client acting for it; every confirmation in this article becomes a proposal you can approve by API (POST /proposals/{proposalId}:approve). Live today, the server API under /api/thirdparty authenticates with a gn-access-token (see Generate an access token), and Live API today and the Business Account API roadmap maps what is live to what is proposed.
| Call | Purpose |
|---|---|
| POST /brands/{brandId}/tags | Generate an offsite tag: VAST, JavaScript display, dynamic feed, audience extension |
| GET /tags/{tagId} | Tag URL, macros, consent passthrough, and creative preview |
// proposed server SDK (Business Account API)
import { Genuin } from '@genuin/sdk';
const genuin = new Genuin({ apiKey: process.env.GENUIN_KEY });
await genuin.tags.create(brandId, { kind: 'vast', feedId, sizes });
await genuin.tags.get(tagId);Live today: Serve your first ad · Receive engagement events in your own analytics.
SDKs: Web SDK 2.0.6 (see Embed the Genuin Web SDK on your website), iOS SDK 2.1.5 (see Integrate the Genuin iOS SDK), Android SDK 2.1.5 (see Integrate the Genuin Android SDK), React Native 3.0.3 (see Integrate the Genuin SDK with React Native apps), and Flutter (see Integrate the Genuin SDK with Flutter apps) render Genuin and sign members in; the Node (@genuin/sdk) and Python (genuin) server SDKs are proposed with Business Account API: provisioning, OAuth, and the resource map.

