---
title: "Send an SMS message"
method: POST
path: "/sms/send"
---

# Send an SMS message

`POST /sms/send`

## Request

- Base URL: `https://sendinel.ai/api/v1`
- URL: `https://sendinel.ai/api/v1/sms/send`
- Auth: one of:
  - HTTP bearer
  - OAuth 2 (authorization code, authorization URL `https://sendinel.ai/oauth/authorize`, token URL `https://sendinel.ai/oauth/token`)

## Request body

- object
  - `to_number` string, required
  - `body` string, required
  - `site_id` string, uuid
  - `contact_id` string, uuid
  - `campaign_id` string, uuid
  - `campaign_step_id` string, uuid
  - `classification` 'marketing' | 'transactional' | 'conversational'

## Response `200`

SMS sent

---

[API](https://skmtc.dev/sendinel/apis/sendinel-api.md) · [All operations](https://skmtc.dev/sendinel/apis/sendinel-api/llms.txt) · [OpenAPI document](https://skmtc.dev/sendinel/apis/sendinel-api/revisions/01f916b0c916?raw)