{"status":"ok","version":"1.0.0","endpoints":{"/api/og":"Generate OGP image","/api/themes":"List available themes","/api/keys":"API key management","/api/billing/checkout":"Create Stripe checkout session","/api/billing/portal":"Create Stripe billing portal session","/api/webhook/stripe":"Stripe webhook endpoint"},"example":"/api/og?title=Hello&description=OGP+Generator&theme=dark","docs":"https://ogp-api.com/docs"}