Question 1

1. How is an open API different from OCPP or OCPI compliance?

Accepted Answer

OCPP connects your software to chargers; OCPI connects your network to other networks. A platform's open API sits above both — it connects your charging business to your own systems: ERP, CRM, fleet platforms, and analytics. A platform can be fully OCPP/OCPI compliant and still be closed at the API layer, which is why all three belong on an RFP checklist separately.

Question 2

2. Do I need an in-house developer team to get value from an open API?

Accepted Answer

No — most CPOs use a local systems integrator or their ERP partner's consultants for the build. What the open API changes is who you can hire and what it costs: with published documentation and a sandbox, any competent integrator can do the work competitively, instead of a single vendor quoting a captive price.

Question 3

3. Which integration should a growing CPO build first?

Accepted Answer

Usually ERP/accounting — it saves finance hours immediately and every operator has the problem. The exception: if a fleet contract is on the table, build the fleet-platform feed first, because it is often a condition of winning the deal rather than an efficiency gain.

Question 4

4. Does an open API make it easier to switch platforms later?

Accepted Answer

Yes, and that is partly the point. If your sessions, tariffs, users, and transaction history are continuously accessible via API, your data is portable and your integrations are rebuildable — which keeps every future contract negotiation honest. Vendors confident in their product treat that portability as a feature, not a threat.

erp integration

Why Open APIs Are Critical For Modern EV Charging Businesses