# Rakuten CPaaS SMS / Messaging API

**Canonical:** https://apis.io/apis/rakuten-mobile/rakuten-cpaas-sms-api/  
**Provider:** Rakuten Mobile — https://apis.io/providers/rakuten-mobile/  
**Base URL:** https://api.cpaas.symphony.rakuten.net/sms/v1  
**Documentation:** https://docs.cpaas.symphony.rakuten.net/getting-started/sms-api/

Rakuten CPaaS SMS / Messaging API is one of 3 APIs that [Rakuten Mobile](https://apis.io/providers/rakuten-mobile/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include SMS, Messaging, CPaaS, A2P, and P2A. The published artifact set on APIs.io includes API documentation.

Carrier-grade SMS API for sending and receiving A2P and P2A SMS at scale on the Rakuten Mobile network, with delivery receipts pushed to caller-configured webhooks. UTF-8 encoded, JWT-authenticated REST endpoints (HTTP variant) alongside an SMPP variant for bulk MNO interconnect. Sender addresses must be pre-registered with operators. Used by enterprises for OTP delivery, transactional alerts, and marketing campaigns through the Rakuten CPaaS dashboard.

## Machine-readable artifacts (6)

- **Documentation** — https://docs.cpaas.symphony.rakuten.net/getting-started/sms-api/
- **Documentation** — https://docs.cpaas.symphony.rakuten.net/getting-started/sms-api/http-api/sending_sms
- **ProductPage** — https://symphony.rakuten.com/cpaas/en/sms
- **Features** — https://symphony.rakuten.com/cpaas/en/sms/feature
- **FAQ** — https://symphony.rakuten.com/cpaas/en/sms/faq-en/what-is-the-connection-method-to-the-api
- **APIsJSON** — https://raw.githubusercontent.com/api-evangelist/rakuten-mobile/refs/heads/main/apis.yml

## Other Rakuten Mobile APIs (2)

- [Rakuten CPaaS Confirm (OTP) API](https://apis.io/apis/rakuten-mobile/rakuten-cpaas-confirm-api/)
- [Rakuten CPaaS Short URL API](https://apis.io/apis/rakuten-mobile/rakuten-cpaas-shorturl-api/)

## Tags

SMS, Messaging, CPaaS, A2P, P2A, Delivery Receipts

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/rakuten-mobile/rakuten-cpaas-sms-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/rakuten-mobile/.