EnergyHub Mercury Edge Connect API
Mercury Edge Connect is EnergyHub's standardized integration framework for connecting DER providers (thermostat, battery, EV, EV charger, and solar inverter manufacturers) to the Mercury/Edge DERMS platform. EnergyHub states in its 2021-02-18 announcement that "At the heart of Mercury Edge Connect is a new API designed specifically to meet the requirements of managing behind-the-meter DERs at scale. The API is based on the Open ADR standard, with enhanced functionality around automated enrollment, monitoring, and other functionality required for managing enterprise-wide portfolios of grid-edge and customer-owned DERs." No public reference documentation, schema, or operation list is published. The host mec.energyhub.com (the name matches Mercury Edge Connect; that mapping is inferred, not stated by EnergyHub) was probed on 2026-07-27 and is live behind a valid DigiCert RapidSSL certificate for CN=mec.energyhub.com, returning HTTP 400 "No required SSL certificate was sent" to every anonymous request on /, /openapi.json, /swagger.json, /docs, /api-docs, /.well-known/openid-configuration, /health, /v1, /api, and /oadr, which is mutual TLS client-certificate authentication consistent with the OpenADR 2.0b VEN/VTN security model. Access requires a DER partner agreement.