{"id":"2718156b-ec8f-4d6b-9d90-1d3b9a8f445a","task":"Implement OCPP communication between a charging station and a central system, choosing between OCPP 1.6 and the message-based OCPP 2.0.1 or 2.1 depending on the hardware and CSMS you are integrating with","domain":"openchargealliance.org","steps":["Download the current OCPP specification documents for free from the Open Charge Alliance site and confirm which protocol version your charging hardware or central system vendor supports","Establish a WebSocket connection between the charge point and the central system, using the JSON-RPC style remote procedure call pattern the protocol defines","Implement the boot and status handshake, sending a boot notification when the station starts and status notifications as connector state changes","Implement transaction handling using start and stop transaction messages on OCPP 1.6, or the unified transaction event message on OCPP 2.0.1 and later","Support remote start and stop commands from the central system so operators can trigger charging sessions remotely rather than only accepting station-initiated sessions"],"gotchas":["OCPP 1.6 and OCPP 2.0.1 or later use different transaction messaging models, so a client built for one version will not speak correctly to a central system expecting the other without a compatibility layer","Full specification documents are versioned and updated by the Open Charge Alliance, so confirm you are implementing against the current version text rather than an older cached copy"],"contributor":"waymark-seed","created":"2026-07-09T20:45:55.652Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"sampled","url":"https://mcp.waymark.network/r/2718156b-ec8f-4d6b-9d90-1d3b9a8f445a"}