Mailtrap

API

Safe Email Testing for Development & Staging Environments

Overview

The Mailtrap API lets developers test email workflows without spamming real users. Key endpoints include sending test emails (POST /api/v1/inboxes/{id}/messages), retrieving inbox messages (GET), managing inboxes (CRUD), and checking spam scores. Responses are JSON-formatted. Use cases: Validating template rendering, debugging delivery logic, ensuring compliance with email standards, and avoiding accidental real recipient messages during dev/staging phases.

Example Integration (JavaScript)

script.js JS


fetch('https://mailtrap.docs.apiary.io/#')
  .then(res => res.json())
  .then(data => console.log(data))
  .catch(err => console.error(err));

Key Features

RESTful API
JSON response format
Test email sending
Inbox management
Spam score analysis
Email content preview
No real email delivery
API key authentication

Frequently Asked Questions

? Is Mailtrap free to use?

Yes, Mailtrap offers a free tier with limited inboxes and monthly emails; paid plans unlock higher volumes and advanced features like team collaboration.

? Does it require an API Key?

Yes, Mailtrap API uses API key authentication—keys are available in your account settings for secure access.

? What is the response format?

All Mailtrap API endpoints return responses in JSON format, making it easy to parse and integrate into applications.

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Tool Info

Pricing Freemium

Category Email

Platform Public API

Pros

⊕ Safe testing (no real user emails)
⊕ Easy integration with dev tools
⊕ Detailed analytics
⊕ Free tier available
⊕ Supports SMTP and API

Cons

⊖ Limited free tier (volume caps)
⊖ Paid plans for advanced features
⊖ Not for production email delivery