SMS.es Business Messenger provides businesses with RCS messaging through a REST API and web interface. Its tools support campaign management, real-time webhooks, and automatic SMS fallback. Campaign actions include creating, cloning, listing, retrieving, updating, activating, pausing, and deleting campaigns. RCS messages can use rich cards, carousels, suggested replies, action buttons, high-resolution images and video, location sharing, and branded sender identity. API access uses OAuth2 client credentials, with tokens valid for seven days. Webhooks can report delivered, read, and user-reply events. To connect an RCS agent, create it in Google's RCS console and provide its Agent ID, region, and webhook URL. The setup process requires explicit opt-in, managed with web forms and keyword rules. Before launch, the agent can message only test devices; broader availability depends on carrier approval. The guide names Android devices with Google Messages and iOS 18 or later as supported test devices. Inicio charges €0.004 per message for up to 100K RCS messages/month; Empresa charges €0.0032 per message for 100K–1M messages/month. Empresarial pricing is custom.
Who it is for
It suits businesses planning promotional, transactional, OTP, or multi-use RCS messaging campaigns. Teams should be prepared to configure consent and complete carrier approval before public availability.
What is good
- Campaign API supports full campaign lifecycle actions.
- Messages support rich media and branded sender identity.
- Automatic SMS fallback is included.
- Webhooks report delivery, read, and reply events.
- OAuth2 access tokens are valid for seven days.
What to know first
- No free plan is listed.
- Explicit opt-in is required for RCS.
- Before launch, messaging is limited to test devices.
- Public availability depends on approval by each carrier.
Verdict
SMS.es Business Messenger offers API-based RCS campaigns with rich formats, webhooks, and SMS fallback. Plan for consent management and carrier approval before expecting public availability.
Get started with SMS.es Business Messenger
- Visit https://rcs.es/rcs-api.html.
- Create an RCS agent in Google's RCS console.
- Connect it using its Agent ID, region, and webhook URL.
- Set up OAuth2 client credentials for API access.
- Collect explicit opt-in through web forms or keyword rules.
- Test on Android with Google Messages or iOS 18 or later.
- Wait for carrier approval before public availability.
Limits to know first
Before public launch, the RCS agent can send only to test devices. Public availability follows approval by each carrier; listed test devices are Android with Google Messages and iOS 18 or later.
Questions about SMS.es Business Messenger
Is there a free plan?
No. The listed Inicio and Empresa plans show 0.00 EUR per month with per-message charges: €0.004 / msg for Inicio and €0.0032 / msg for Empresa.
What platforms can I use?
The product is listed for API and web access.
What is required to connect an RCS agent?
Create the agent in Google's RCS console, then connect it using its Agent ID, region, and webhook URL.
Does RCS messaging require consent?
Yes. Explicit opt-in is required; web forms and keyword rules are provided for managing consent.
Who makes SMS.es Business Messenger?
SMS.es identifies itself as the commercial brand of G729 S.L.
What plans are listed?
Inicio is 0.00 EUR per month, billed €0.004 / msg, for up to 100K RCS messages per month. Empresa is 0.00 EUR per month, billed €0.0032 / msg, for 100K–1M messages monthly. Empresarial has custom pricing and is for more than 1M messages per month.
SMS.es Business Messenger plans and pricing
All plansCompared on RCS messaging platforms
- Free plan
- No
- API access
- Yes
- Two-way messaging
- Yes
- Rich media messages
- Yes
- Verified sender
- Yes
- Delivery analytics
- Yes
- Webhook support
- Yes
