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sinch-email-mailjet-send

Send transactional or marketing emails via the Mailjet Send API v3.1.

6|2|Updated Dec 11, 2025
Search Tags:#api#email#smtp#send#transactional#sinch#mailjet
One-click install
npx skills add https://github.com/sinch/sinch-plugins --skill sinch-email-mailjet-send-sinch
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: sinch-email-mailjet-send
Source: https://github.com/sinch/sinch-plugins/tree/main/plugins/sinch-antigravity-plugin/skills/sinch-email-mailjet-send
Command: npx skills add https://github.com/sinch/sinch-plugins --skill sinch-email-mailjet-send-sinch

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve? Sending transactional or marketing email programmatically requires constructing authenticated HTTP requests to the Mailjet API, which is repetitive and error-prone when done manually from a terminal or AI assistant session. ## Core Features & Use Cases - Direct API Execution: Sends email immediately via POST to the Mailjet Send API v3.1 without generating intermediate script files. - Flexible Content: Supports plain text bodies, HTML bodies, or both, with named sender formatting (e.g. "Name [email protected]"). - Credential Validation: Checks for MJ_APIKEY_PUBLIC and MJ_APIKEY_PRIVATE environment variables and reports clear errors for 401 and 400 responses. - Use Case: A developer testing an application flow can fire off a verification or notification email to a test recipient directly from the command line without writing any code. ## Quick Start Ask the assistant to send an email from [email protected] to [email protected] with a subject and a text or HTML body using the Mailjet send command.

Frequently Asked Questions about sinch-email-mailjet-send

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I send an email with the Mailjet API?▼

Send a POST request to https://api.mailjet.com/v3.1/send with Basic Auth using your API key and secret key. The body contains a Messages array with From, To, Subject, and TextPart or HTMLPart fields.

What credentials does Mailjet email sending require?▼

Mailjet requires an API key and secret key pair, set as the MJ_APIKEY_PUBLIC and MJ_APIKEY_PRIVATE environment variables. These are used together as the username and password for HTTP Basic Authentication.

Can I send HTML emails through the Mailjet Send API?▼

Yes, the Mailjet Send API v3.1 supports HTML content via the HTMLPart field in the message object. You can provide an HTML body, a plain text body, or both in the same request.

Why does my Mailjet API request return a 401 error?▼

A 401 error means authentication failed, usually because the API key or secret key is missing or incorrect. Verify that MJ_APIKEY_PUBLIC and MJ_APIKEY_PRIVATE are set correctly in your environment.

What are the limitations of sending email via command line API calls?▼

Direct API calls send one message per request and lack features like templates, scheduling, or batch recipient management. For bulk campaigns or templated emails, use the Mailjet dashboard or a dedicated SDK integration.

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