---
title: "OCPP proxy for multi-backend routing and migration"
description: "GridOS is an OCPP proxy that sits between chargers and CPMS backends. Route, duplicate, and switch OCPP traffic for migration, parallel ops, and multi-CPMS setups—without reflashing chargers."
canonical: "https://gridos.co/solutions/ocpp-proxy"
keywords:
  - "OCPP proxy"
  - "OCPP proxy software"
  - "OCPP multi backend"
  - "OCPP broker"
  - "multi-CPMS OCPP"
  - "OCPP traffic routing"
  - "OCPP migration proxy"
  - "charge point proxy"
---

# OCPP proxy for multi-backend routing and migration

> Teams searching for “OCPP proxy” want control over charger-to-backend traffic: dual-run during migration, observer backends for analytics, and failover between systems. GridOS implements that as an application-layer OCPP proxy/gateway, not a blind TCP mirror.

GridOS is an OCPP proxy that sits between chargers and CPMS backends. Route, duplicate, and switch OCPP traffic for migration, parallel ops, and multi-CPMS setups—without reflashing chargers.

## Audience

CPO architects and platform engineers building multi-backend OCPP networks.

## Best for

Operators who need an OCPP proxy for multi-CPMS orchestration, staged migration, or traffic inspection without truck rolls.

## Pain points

- TCP-level WebSocket duplication breaks OCPP request/response pairing.
- Migration requires re-pointing every charger URL for each cutover wave.
- Two backends cannot safely share one charger without message arbitration.
- Debugging OCPP in production needs a controlled observation path.
- Vendor lock-in is enforced by charger endpoint configuration in the field.

## Outcomes

- Application-layer OCPP proxy with primary and observer backend roles.
- Wave-based migration: re-route groups at the proxy, not on hardware.
- Parallel analytics and monitoring without conflicting RemoteStart commands.
- Stable charger WebSocket endpoint while backends change behind it.
- Clear ops path for dual-run validation before full cutover.

## FAQ

### What is an OCPP proxy?

An OCPP proxy is a broker between EV chargers and one or more central systems. Chargers open a single OCPP WebSocket to the proxy; the proxy routes, fans out, or switches messages to backends according to policy—used for migration, multi-CPMS setups, and traffic observation.

### Why can’t I just mirror WebSocket frames to two CPMS systems?

OCPP is request/response. Blind frame duplication produces duplicate responses and conflicting remote commands. A real OCPP proxy understands message IDs and roles (primary vs observer) so only one system drives the charger control loop.

### OCPP proxy vs OCPP gateway — which term should I use?

Use “proxy” when multi-backend routing and migration are the main job. Use “gateway” when mixed-version connectivity and protocol normalization are the main job. GridOS provides both capabilities in one infrastructure layer.

### Does an OCPP proxy add latency?

It adds one hop because it terminates the charger WebSocket. For Authorize and StartTransaction, that cost is usually negligible compared with the risk of truck rolls and big-bang cutovers.

### Can GridOS proxy to my existing CPMS and a new one at the same time?

Yes. That dual-run pattern is a core multi-CPMS orchestration use case: validate the new backend on live traffic while the incumbent remains primary, then switch primary at the proxy.

## Related

- Gateway: [OCPP gateway product page](https://gridos.co/solutions/ocpp-gateway)
- Architecture: [Multi-CPMS orchestration guide](https://gridos.co/blog/multi-cpms-orchestration)
- Explain: [What is an OCPP proxy?](https://gridos.co/blog/what-is-an-ocpp-proxy)
- Pricing: [GridOS pricing](https://gridos.co/pricing)