---
id: mailjet-rest
version: "1.7.0"
license: MIT
license_treatment: permissive
maintenance: active
---

# mailjet-rest — Mailjet V3 API wrapper

License: permissive · Maintenance: active · Downloads: 1.2M/mo

## What it is and what it does

mailjet-rest is the official Python client for Mailjet's email delivery APIs. It wraps Mailjet's v3, v3.1 (Send API), and v1 (Content API) endpoints, handling authentication, request serialization, and error handling so you can send transactional emails, manage contacts, and interact with templates and segmentation features without building HTTP calls manually.

The package is designed for Python 3.10+ and emphasizes resource safety through context manager support, local-first payload validation, and type hints for IDE autocompletion. It supports both simple email sends and complex payloads via a MessageBuilder, and returns raw response objects for standard HTTP errors rather than raising exceptions, giving you fine-grained control over error handling.

Use it for:

- Send transactional emails (password resets, order confirmations) from your application.
- Manage Mailjet contacts, templates, and campaigns programmatically.
- Build and send complex multi-recipient emails with attachments and custom headers.
- Integrate email delivery into a web application using the Send API v3.1.
- Monitor email statistics and webhook events through the Email API ecosystem.

## Worth the install?

AI-flagged interpretation of the facts above — verify before relying.

A Python wrapper for the Mailjet Email API that handles authentication, request building, and response parsing for sending emails and managing email-related resources through Mailjet's v3, v3.1, and v1 endpoints.

Yes. The package is actively maintained, has no known vulnerabilities, carries a permissive MIT license, and requires only two lightweight runtime dependencies. Install it if you need to send email through Mailjet from Python—it's the official client and handles authentication and request building for you. The main prerequisite is having valid Mailjet API credentials and Python 3.10 or later.

## Install

pip install mailjet-rest
uv add mailjet-rest
poetry add mailjet-rest

## Installing mailjet-rest

Before you install: Low friction installation with only two runtime dependencies (requests and typing-extensions). The package is actively maintained with a recent release and no known vulnerabilities.

License in practice: MIT license permits commercial and private use with minimal restrictions—you may use, modify, and distribute the package freely as long as you include the license notice.

Quickstart:

pip install mailjet-rest

import os
from mailjet_rest import Client

api_key = os.environ.get("MJ_APIKEY_PUBLIC")
api_secret = os.environ.get("MJ_APIKEY_PRIVATE")

with Client(auth=(api_key, api_secret), version="v3.1") as mailjet:
    data = {
        "Messages": [{
            "From": {"Email": "sender@example.com"},
            "To": [{"Email": "recipient@example.com"}],
            "Subject": "Test",
            "TextPart": "Hello"
        }]
    }
    result = mailjet.send.create(data=data)
    print(result.status_code)

Requires Mailjet API credentials (MJ_APIKEY_PUBLIC and MJ_APIKEY_PRIVATE environment variables) and Python >= 3.10.

Verify before relying:

- Whether the package supports async/await patterns for non-blocking email sends.
- Rate-limiting behavior and retry logic for failed API requests.
- Whether webhook handling or parse API integration is built-in or requires additional setup.

## Package facts

- License: MIT (permissive)
- Python support: supports_current
- Install friction: low
- Maintenance: active
- Downloads: 1.2M/month (top 5,000 on PyPI)
- Known vulnerabilities: none known

## Tags

mailjet email api python, send transactional emails python, mailjet api wrapper, email delivery python sdk, mailjet client library, email-delivery, transactional-email, mailjet

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