Mailtrap

**[Mailtrap.io](https://mailtrap.io)** is a comprehensive email platform that helps developers and teams test, debug, and deliver emails safely. It provides both email testing (sandbox) and email delivery services. This MCP (Model Context Protocol) server provides AI assistants with the ability to: - **Send emails** via Mailtrap's delivery API - **Test emails** using Mailtrap's sandbox environment - **Manage email templates** (create, update, delete, list).

View in the Claude registry

Integration type: Connector
Verification status: Verified connector
Platform: Claude
Category: Productivity
Primary Subcategory: Vendor API & SDK Integration Connectors
Secondary Subcategories: Email APIs & Programmable Inboxes
Brand: Mailtrap
Access: Unknown
First tracked: 2026-06-24
Tool count: 23
Geography: US

Claude Discoverability Score

Your public score is being prepared

Mailtrap is tracked in the public registry. Its Discoverability Score will appear as soon as the public benchmark is ready - never as an estimate.

Get your Discoverability Score

Primary Subcategory

Competing in Claude Vendor API & SDK Integration Connectors

View Category

1Resend100/100

2AgentMail50/100

3Brevo15/100

4Airwallex Developer0/100

5AWS MCP0/100

Score explained

How the Discoverability Score works

The Claude Discoverability Score will be the percentage of contested conversations where Mailtrap appears in the connector picker or Claude invokes it directly. Found and Positioned will be shown as diagnostics, not score inputs.

InvisibleBuriedEmergingCompetitiveWinning

Organic discovery scoring is pending. Your Connector score will appear on this scale when measurement goes live.

FoundDiagnostic

Whether Claude found your Connector in connector search. It must be Found before it can reach the picker, but the score counts picker appearances—not search results.

PickedMain score

How often your Connector appeared in the picker, or Claude invoked it directly, across contested conversations. This percentage is the Discoverability Score; the headline number is rounded.

PositionedDiagnostic

What position your Connector appeared in when it was shown in the picker. This shows prominence, but it does not affect the score.

Read the full scoring methodology Recommended guideHow to get your Claude Connector organically discoveredFollow the practical steps agents use to find, shortlist, and choose your Connector.

Tools

23 tools agents can invoke

Delete all messages from a sandbox inbox without deleting the inbox itself.
Create a new sandbox test inbox within a project.
Create a new sandbox project to group test inboxes.
Create a new sending domain.
Create a new email template in Mailtrap.
Delete a sandbox inbox and all its messages.
Delete a sandbox project and all its inboxes.
Delete a sending domain.
Delete an email template from Mailtrap.
Get a single email log message by ID to inspect delivery status and event history.
Get sandbox inbox details including SMTP credentials, email counts, and status.
Get list of messages from the sandbox test inbox.
Get a sending domain by ID and its verification status, with optional DNS setup instructions.
Get email sending statistics (delivery, bounce, open, click, spam rates) for a date range with optional breakdowns.
List sent email logs (delivery history) with optional pagination and filters.
List all sandbox projects and their inboxes in your Mailtrap account.
List sending domains and their DNS verification status.
List all email templates in your Mailtrap account.
Send emails via Mailtrap's delivery API with support for HTML/text content and multiple recipients.
Send test emails to Mailtrap's sandbox environment without delivering to real recipients.
Show sandbox email message details and content, with optional spam report and HTML analysis.
Update a sandbox inbox name or email username.
Update an existing email template in Mailtrap.

Mailtrap FAQ

How do I improve a Verified connector's discoverability?

The levers are the listing surface agents actually read: names, descriptions, keywords, tool metadata, and registry health. Which lever matters depends on where discovery breaks, which is what continuous measurement shows.

What are Mailtrap alternatives on Claude?

As of 2026-08-14, Mailtrap competes with Resend, AgentMail, Brevo, Airwallex Developer, AWS MCP, CometChat, GoCardless, Plaid Developer Tools, Twilio, Algolia Productivity, VoIP.ms (Unofficial), YES2SDK in Claude Vendor API & SDK Integration Connectors, ranked by public Discoverability Score.

Where is this profile measured?

This profile uses the geography attached to the latest public registry snapshot: US. Locale tags are intentionally omitted.