fastmail-mcp

Active·★ 121·MIT·Updated 2026-05-16

★ Trending★ API Integration★ Dev Tooling

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.

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#Fastmail API Integration

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.

Compatibility

Node.js

Runtime

Verified via docs

Claude Desktop

Extension Platform

Verified via docs

Quick start

$ npm install

$ npm run build

$ npm start

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.

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Features

Compatibility

Quick start

Use cases

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Comments

Features

Compatibility

Quick start

Use cases

Alternatives

Related searches

Comments