---
title: "Generate or create subject line variants"
method: POST
path: "/advisor/subject-lines"
---

# Generate or create subject line variants

`POST /advisor/subject-lines`

## Request

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

## Response `200`

Subject line recommendations

---

[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/20b2c6d5616d?raw)