RCS-Box
RCS-Box: A developer-focused RCS gateway with free API access and built-in messaging workflows. Ranked #11 of 34 in RCS Messaging Platforms by our editors (6.6/10); pricing: Free plan; best for developers needing free RCS infrastructure.
At a glance
- Editor score6.6 / 10
- PricingFree plan
- Best forDevelopers needing free RCS infrastructure
- Free planYes
- API accessYes
- Facts checked20 Sep 2026
Where it wins
- Free plan includes API access, RCS sending, and webhook callbacks
- Supports rich cards, carousels, files, images, and videos
- Includes verification, capability checks, and opt-out management
Where it doesn't
- Integration is centered on Google RCS Business Messaging
- The product is focused on RCS rather than multichannel messaging
- Advanced usage is tied to Railslove's hosted infrastructure
Our verdict on RCS-Box
RCS-Box is a multi-tenant API gateway for Google RCS Business Messaging from Railslove GmbH. It is aimed at developers and organizations implementing RCS through hosted infrastructure rather than building carrier and sender workflows independently. The platform provides authenticated APIs for agents and messages, supports two-way messaging, and works through API and web interfaces. Its messaging formats include text, rich cards, carousels, files, images, and videos, making it suitable for applications that need more than plain-text delivery.
Its main strength is the coverage around the RCS sender lifecycle. RCS-Box includes brand and agent management, sender verification, carrier launch workflows, tester registration and invitations, and capability checks for phone numbers. Inbound messages and delivery events can flow through webhooks, while built-in STOP/START handling supports opt-out management. These functions give developers a defined set of tools for managing both message delivery and the operational steps around RCS agents. The listed integration is Google RCS Business Messaging, so the product fits teams committed to that ecosystem rather than organizations seeking a broad multichannel messaging layer.
The free plan includes API access, RCS message sending, and webhook callbacks, with a 100-session quota identified in the official documentation. That makes RCS-Box a practical starting point for developers evaluating RCS infrastructure or implementing a focused messaging service. Its scope is less suitable for teams that need channels beyond RCS, a wide third-party integration catalog, or a platform centered on non-developer campaign management. Choose RCS-Box when authenticated APIs, webhook events, sender administration, and RCS-specific workflows are the priority; choose another product when channel breadth is more important than RCS depth.
RCS-Box pricing
All 1 RCS-Box plans and prices →
RCS-Box fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Not verified |
| API access | Yes |
| Two-way messaging | Yes |
| Rich media messages | Yes |
| Verified sender | Yes |
| Delivery analytics | Yes |
| Webhook support | Yes |
| Deployment | Cloud |
| Platforms | Web |
| Support | Email, Docs |
| Built for | Small business, Mid-market, Enterprise (editorial estimate) |
| Integrations | 1 integrations: Google RCS Business Messaging |
| Pricing | Free plan (source) |
| Website | rcs.jetzt |
| Facts checked | 20 Sep 2026 |
RCS-Box integrations
RCS-Box lists 1 integrations on its own site.
- Google RCS Business Messaging
Alternatives to RCS-Box
- Infobip RCS for BusinessA broad RCS platform for branded, two-way enterprise messaging with fallback and analytics.9.4
- AWS End User Messaging RCS for BusinessAn AWS-centered RCS service with clear usage pricing and a notable setup fee.8.7
- Google RCS for BusinessA direct Google RCS stack for rich, two-way customer messaging and agent management.7.7
See all RCS-Box alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026
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