# Nextiva SMS Messaging API

**Canonical:** https://apis.io/apis/nextiva/sms-messaging/  
**Provider:** Nextiva — https://apis.io/providers/nextiva/  
**Base URL:** https://api.nextiva.com  
**Documentation:** https://developer.nextiva.com/nextiva/reference/sendsmsmessage

Nextiva SMS Messaging API is one of 5 APIs that [Nextiva](https://apis.io/providers/nextiva/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include SMS, Messaging, and Text. The published artifact set on APIs.io includes an OpenAPI specification and API documentation.

Send outbound SMS messages from a Nextiva user. Inbound SMS arrives as a workitem on the SDK event stream rather than as a customer-configured webhook.

## Machine-readable artifacts (3)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/nextiva/refs/heads/main/openapi/nextiva-sms-messaging-openapi.yml
- **Overlay** — https://raw.githubusercontent.com/api-evangelist/nextiva/refs/heads/main/overlays/nextiva-sms-messaging-overlay.yaml
- **Documentation** — https://developer.nextiva.com/nextiva/reference/inbound-and-outbound-sms

## Other Nextiva APIs (4)

- [Nextiva Provider Authentication API](https://apis.io/apis/nextiva/provider-authentication/)
- [Nextiva Provider Token Service API](https://apis.io/apis/nextiva/provider-token-service/)
- [Nextiva Workitem Service API](https://apis.io/apis/nextiva/workitem-service/)
- [Nextiva Conversation API](https://apis.io/apis/nextiva/conversation/)

## Tags

SMS, Messaging, Text

---

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