Harbinger Motors SEO Metadata API
The Yoast SEO `get_head` endpoint on harbingermotors.com. For any site URL it returns the fully rendered head block — canonical URL, robots directives, Open Graph and Twitter card metadata, and the schema.org JSON-LD graph the page publishes. Verified live on 2026-08-22 against Yoast SEO 28.3. This is a plugin surface, not a Harbinger product API.
Documentation
Specifications
Other Resources
ErrorCatalog
https://raw.githubusercontent.com/api-evangelist/harbinger/refs/heads/main/errors/harbinger-problem-types.yml
Conventions
https://raw.githubusercontent.com/api-evangelist/harbinger/refs/heads/main/conventions/harbinger-conventions.yml
Conformance
https://raw.githubusercontent.com/api-evangelist/harbinger/refs/heads/main/conformance/harbinger-conformance.yml
Overlay
https://raw.githubusercontent.com/api-evangelist/harbinger/refs/heads/main/overlays/harbinger-seo-api-overlay.yaml