TopazEV is a fully managed Charge Station Management System built on
CitrineOS. Launch faster, monitor chargers in real time, and scale with open
APIs and support for OCPP 1.6, 2.0.1, and 2.1.
TopazEV is an API-first EV charging platform that gives you full control without SaaS lock-in. It handles the complex layers of open protocols (OCPP/OCPI/ISO15118), device connectivity, and infrastructure orchestration so you can build or deploy faster while owning your stack and data.
Monitor your entire charging network in
one place
Track status, sessions, and performance instantly
Connect with energy systems, enterprise
tools, and custom
workflows
No deployment,
hosting, or
maintenance required
Move from pilot to production with confidence
Scale your EV charging infrastructure without unpredictable costs. TopazEV offers clear, flexible pricing without revenue sharing or per-session charges. As your network expands, benefit from decreasing per-station costs, keeping 100% of your charging revenue.
Unlike SaaS solutions that take a percentage of transaction revenue or lock in ongoing monthly contracts, Topaz charges a flat monthly fee. The more chargers you add, the lower your per-station cost, making it the most cost-effective way to scale.
Absolutely. Topaz’s open-source foundation supports custom features, integrations, and community contributions. With open APIs (REST & GraphQL), operators can tailor the platform to fit their specific requirements.
Yes, Topaz is OCPP 2.0.1 certified for Core and Advanced Security by the Open Charge Alliance. This guarantees built-in interoperability, top-tier security, and compliance with the latest charging standards.
Topaz is built on CitrineOS, a Linux Foundation Energy project that continuously evolves with contributions from a global open-source community. This ensures that Topaz remains future-proof, adaptable, and continuously improving.
Unlike legacy CSMS providers, Topaz is the first Open as a Service (OaaS) platform, combining the flexibility of open-source innovation with the ease of a modern SaaS experience. This means no vendor lock-in, no hidden fees, and complete control over your charging network.
Yes, TopazCSMS can help in multiple ways. First TopazCSMS exposes all API’s that allow clients to customize or create value add differentiators to their business. Second TopazCSMS is the only “As-a-Service” to custom offering. Allowing networks to take advantage of the ease of a turn-key solution and grow into a more custom offering in time.
Yes. While Topaz benefits from continuous improvements via the open-source community, it also includes professional support, updates, and security patches, ensuring a seamless experience.
OaaS is an approach that combines the power of open-source software with the convenience of a SaaS model. It provides flexibility, transparency, and cost control, allowing operators to manage their EV charging networks without being locked into proprietary systems.
Yes. Whether launching a new charging network or upgrading from an existing CSMS, Topaz provides a flexible and scalable solution.
Topaz uses open APIs (REST & GraphQL) and an AMQP broker, allowing easy integration with existing charging station hardware and third-party applications.
Topaz is designed for seamless deployment, supporting custom backends, open APIs, and smooth migrations from other platforms. Our team ensures a fast, low-downtime transition.
As your charging network grows, your per-station fee decreases, making Topaz one of the most cost-effective solutions for scaling EV charging operations.
No. Unlike traditional SaaS providers, Topaz does not charge per-session fees or take a percentage of your revenue. Our pricing is transparent and predictable.
We offer two pricing models: · OaaS (Per Charger, Per Month):Multiple subscription tiers to fit different business sizes. · PaaS (Platform as a Service):Enterprise-scale solutions with dedicated support and customization.
Our team works with operators to develop and implement custom solutions. Contact us to discuss your specific requirements.
Custom builds are available for specialized needs, including: · Proprietary feature development · Advanced reporting and analytics · Deep integrations with unique backend systems
Out-of-the-box, Topaz includes: · OCPP 1.6 & 2.0.1 certified compliance · Open APIs for easy integration · Secure and scalable infrastructure · Continuous improvements from the open-source community
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Alfen
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ChargePoint
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EVBox
EVerest
Lincoln Electric
Megmeet
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VectorInformatik
Wallbox
XCharge
