---
title: "Batch upsert contacts by email"
method: POST
path: "/contacts/batch"
---

# Batch upsert contacts by email

`POST /contacts/batch`

## Request

- Base URL: `https://sendinel.ai/api/v1`
- URL: `https://sendinel.ai/api/v1/contacts/batch`
- 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
  - `contacts` object[], required
    - `email` string, email, required
    - `first_name` string
    - `last_name` string
    - `custom_properties` object
    - `tags` string[]

## Response `202`

Batch result

---

[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)