Every CalibSun forecast is available through a REST API: probabilistic and deterministic output per 15-minute block, historical runs, plant configuration, and an endpoint to push your own measurements back to us. Two hosts are available: api.calibsun.com for the global service, and api-india.calibsun.com for plants whose data must remain in India. Access is authenticated by bearer token, and credentials are generated from your account, under My Account then My API credentials.