Super-Calendar Legacy Compatibility

Documentation:
https://super-calendar.io/legacy/

Machine contract:
https://super-calendar.io/api/legacy

Transport:
HTTP compatibility: http://legacy.super-calendar.io/
HTTPS mirror: https://legacy.super-calendar.io/
HTTPS upstream: https://super-calendar.io/

Current compatibility routes:
http://legacy.super-calendar.io/health.txt
http://legacy.super-calendar.io/weather-summary
http://legacy.super-calendar.io/exchange-summary
http://legacy.super-calendar.io/moon-summary

Scope:
GET and HEAD only.
Public low-level text only.
No login, cookies, credentials, private data, or arbitrary proxying.
The proxy upgrades its fixed allowlisted requests to the HTTPS API upstream.

Charset:
?charset=0  UTF-8 / Unicode (default)
?charset=1  US-ASCII
?charset=2  ISO-8859-1 / Latin-1

Legacy is a narrow compatibility surface. New integrations should prefer OpenAPI or I/O.