# WAVE OG renders every branded 1200×630 social card the WAVE fleet uses — one worker, three card kinds. - This host (og.wave.online) is a WAVE Protocol Plane utility spoke: it has no gateway-fronted API of its own — it is called directly, with no auth, by every other spoke's og:image tag. - Errors are JSON: {"error":{"code","message"}}. ## Surfaces - [Landing page](https://og.wave.online/) - [Health](https://og.wave.online/health) — liveness probe (JSON) - [llms.txt](https://og.wave.online/llms.txt) — this document - [skill.md](https://og.wave.online/skill.md) — agent-callable skill spec ## For agents - [Agent card](https://og.wave.online/.well-known/agent-card.json) — A2A [a WAVE product](https://wave.online)