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fastmail-mcp
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fastmail-mcp

Active·★ 130·MIT·Updated 2026-09-12

The Fastmail MCP Server acts as a Model Context Protocol server, offering AI assistants comprehensive access to Fastmail's email, contacts, and calendar functionalities via its JMAP API. It provides a rich set of tools for managing communications, scheduling, and personal information, designed for seamless integration with AI-powered applications.

#JMAP API#AI Assistant#Email Management#Contact Management#Calendar Management#Node.js
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Guides
#Fastmail API Integration
$ Install
$ npm install && npm run build && npm start
↗ Visit site★ GitHub
01

Features

01Email Management: List, search, send, reply, draft, and delete emails.
02Advanced Email Features: Attachment handling, threading, bulk operations, and detailed statistics.
03Contact Management: List, retrieve, and search contacts.
04Calendar Management: View and create calendar events.
05AI Assistant Integration: Provides a Model Context Protocol server for AI interaction with Fastmail data.
02

Compatibility

Node.js
Runtime
Verified via docs
Claude Desktop
Extension Platform
Verified via docs
03

Quick start

1
$ npm install
2
$ npm run build
3
$ npm start
04

Use cases

↳Building AI assistants that can send, reply to, and manage emails.
↳Developing applications that require programmatic access to Fastmail contacts.
↳Creating tools for managing calendar events via AI.
↳Automating email workflows (e.g., auto-reply, archiving based on content).
↳Integrating Fastmail capabilities into Claude Desktop Extensions.
05

Alternatives

⚡Top VS:
VSCivil3D-mcp★53→VSdav-mcp★40→VSue5-mcp-bridge★65→

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MadLlama25 /
fastmail-mcp
↗

A Model Context Protocol (MCP) server that provides access to the Fastmail API, enabling AI assistants to interact with email, contacts, and calendar data. Includes a DXT (desktop extension) for Claude Desktop.

130MIT
Last commit1mo ago
StatusActive
CategoryWorkflow Automation
Links
Documentation↗Discussion↗Issues↗Releases↗
Cloud Infrastructure
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