F
Fastmail MCP
38
Stack Score
Editorial pick✓ Verified workingMCP server
Fastmail MCP
Fastmail email + calendar ops from Claude.
Best for
Best for privacy-conscious individuals on Fastmail.
At a glance
- Pricing
- open-source
- Setup time
- 20 minutes
- Learning curve
- moderate
- Last verified
- 5/26/2026
What we love
- ✓Privacy-first email
- ✓Custom domains easy
- ✓Strong masked-email feature
Where it falls short
- −Fastmail subscription required
- −API less rich than Gmail
- −Smaller community
Pricing
✓ Pricing verified Jun 14, 20261 tier
Open-source
$0
perpetual
- ✓MIT
Overview
MCP server for Fastmail — IMAP/SMTP + CalDAV operations. Privacy-first email + calendar provider exposed to Claude.
Key features
- ●IMAP + SMTP ops
- ●CalDAV calendar
- ●Contacts + masking
- ●App password auth
- ●Custom domain support
Best use cases
Privacy-focused email ops
Let Claude operate on Fastmail for privacy-conscious users.
Masked email gen
Generate + manage masked emails via Claude for sign-ups.
Integrations
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