What are the top tools for email?

By listing rank, the top MCP server is Inbox Zero, the top agent skill is webiny-mailer-smtp and the top AI agent is rowboat. Rank weighs adoption, freshness, documentation and publisher identity; money never changes it.

How many tools does the catalog list for email?

86 listings are tagged for it: 51 MCP servers, 6 agent skills, 1 plugin, 1 agent framework, 26 AI agents and 1 no-code agent builder. Tags come from an automated enrichment pass over the top-ranked listings, so tools outside that pass are not counted.

Which AI apps do the MCP servers work with?

Of the 51 MCP servers, 50 list Claude Code, 50 list Cursor and 50 list VS Code as a supported host. Open a listing for its install command and the other hosts it names.

Do the AI agents for email cost money?

Pricing is stated for 5 of the 26 agents: HARPA AI (paid), Juicebox (freemium with a free tier), Qualified Piper (enterprise). The other agents state no pricing in their listings.

AI agent tools for email

In this catalog, an email tool is one that reads, drafts, sorts or sends email. Our enrichment pass tags 86 listings with it: 51 MCP servers, 6 agent skills, 1 plugin, 1 agent framework, 26 AI agents and 1 no-code agent builder. By listing rank, the top MCP server is Inbox Zero, the top agent skill is webiny-mailer-smtp and the top AI agent is rowboat. 9 of the 86 are published by the vendor behind the product, and 58 were active in the last 30 days. 12 of the 51 MCP servers run only as remote servers, with nothing to install locally. Each entry below links to its listing page, with grades, install commands and sources.

Updated Oct 26, 2026 · Built from catalog data; how we rank and grade

What the job is

Tagged listings: 86
By type: 51 MCP servers, 6 agent skills, 1 plugin, 1 agent framework, 26 AI agents and 1 no-code agent builder
Published by the vendor: 9 of 86
Active in the last 30 days: 58 of 86
Open source: 55 of 86
MCP servers that run only remotely: 12 of 51
Hosts named by the MCP servers: Claude Code (50), Cursor (50), VS Code (50)

Building blocks by type

The top entries of each type, by listing rank. Open a listing for its install command, grades and sources.

MCP servers 51 tagged

1
Inbox Zero
elie222
Search Gmail and Outlook, save drafts, manage email rules, and view email stats.
- Most GitHub stars here (12,793)
- Remote server, no local install
- Active in the last 30 days
★ 12.8KLast active Oct 23, 2026Remote (HTTP)Claude Code, VS Code, Cursor, Windsurf
AFreshness: A–Security: not graded yet
2
Agent-Native Mail
BuilderIO
Agent-Native Superhuman - email client with keyboard shortcuts and AI triage
- 7.5K GitHub stars
- Remote server, no local install
- Active in the last 30 days
★ 7.5KLast active Oct 24, 2026Remote (HTTP)Claude Code, VS Code, Cursor, Windsurf
AFreshness: A–Security: not graded yet
3
HQBase
HQBase
Connect AI agents to your self-hosted HQBase shared email workspace.
- Remote server, no local install
- Active in the last 30 days
- Open source (AGPL-3.0)
★ 350Last active Oct 12, 2026Remote (HTTP)Claude Code, VS Code, Cursor, Windsurf
AFreshness: A–Security: not graded yet
4
e2a — email for AI agents
e2a.devOfficial
Authenticated email gateway for AI agents — per-agent inboxes, HITL approval, SPF/DKIM verified.
- Published by the vendor
- Remote server, no local install
- Active in the last 30 days
★ 194Last active Oct 22, 2026Remote (HTTP)Claude Code, VS Code, Cursor, Windsurf
AFreshness: A–Security: not graded yet
5
Connected Apps
pollinations
Read Gmail, search GitHub, update Sheets, and post to Slack through Composio.
- 5.2K GitHub stars
- Remote server, no local install
- Active in the last 30 days
★ 5.2KLast active Oct 24, 2026Remote (HTTP)Claude Code, VS Code, Cursor, Windsurf
AFreshness: A–Security: not graded yet

Search MCP servers for email → All connectors

Agent skills 6 tagged

1
webiny-mailer-smtp
webiny
Use when configuring SMTP email/mailer settings in a Webiny project.
- Repository has 8K stars
- Active in the last 30 days
★ 8KLast active Oct 20, 2026Claude Code, Claude apps, Codex, Cursor +6
AFreshness: A–Security: not graded yet
2
cloudflare-email-service
cloudflareOfficial
Implement or troubleshoot Cloudflare Email Sending and Email Routing integrations and their delivery configuration.
- Published by the vendor
- Repository has 3.2K stars
- Active in the last 30 days
★ 3.2KLast active Oct 14, 2026Claude Code, Claude apps, Codex, Cursor +6
AFreshness: A–Security: not graded yet
3
lark-mail
larksuite
飞书邮箱：Use when user mentions 起草邮件、写邮件、草稿、发送/回复/转发邮件、查阅邮件、看邮件、搜索邮件、邮件文件夹、邮件标签、邮件联系人、监听新邮件、邮件收信规则等；use for mail/email intent only.
- Repository has 17.8K stars
- Active in the last 30 days
- Open source (MIT)
★ 17.8KLast active Oct 13, 2026Claude Code, Claude apps, Codex, Cursor +6
AFreshness: A–Security: not graded yet
4
cold-email
coreyhaines31
Write and run B2B cold outbound that gets replies, from cold emails and follow-ups to sending setup, LinkedIn, multichannel cadences, and reply handling.
- Largest repository here (56,355 stars)
- Active in the last 30 days
- Open source (MIT)
★ 56.4KLast active Oct 19, 2026Claude Code, Claude apps, Codex, Cursor +6
AFreshness: A–Security: not graded yet
5
email-marketing-bible
george-hartley
Email marketing operating manual for AI agents, with hard send-safety gates.
- Active in the last 30 days
- Open source (MIT)
★ 353Last active Oct 13, 2026Claude Code, Claude apps, Codex, Cursor +6
AFreshness: A–Security: not graded yet

Search agent skills for email → All skills

Plugins 1 tagged

1
Google Workspace MCP
mercurial
Gmail, Calendar, Drive, Docs & Sheets tools for every AI agent — Claude, Copilot, Cursor, Codex, Gemini, and more.
- Open source (MIT)
VS Code, Cursor, Windsurf, VSCodium
CFreshness: C–Security: not graded yet

Search plugins for email → All plugins

Agent frameworks 1 tagged

1
caspian-sdk
TryCaspian
Python and TypeScript SDK that lets an agent message people on email, Slack, Discord, Telegram and other channels through one handler.
- Open source (AGPL-3.0)
- For Python and TypeScript
★ 973↓ 57/wkLast active Aug 25, 2026
BFreshness: B–Security: not graded yet

Search agent frameworks for email → All harnesses & sdks

AI agents 26 tagged

1
rowboat
rowboatlabs
Open-source desktop assistant that builds a knowledge graph from your work and runs background agents on events or schedules
- Most GitHub stars here (18,062)
- Active in the last 30 days
- Open source (Apache-2.0)
★ 18.1KLast active Oct 23, 2026
AFreshness: A–Security: not graded yet
2
OpenOutreach
eracle
Self-hosted B2B lead-finding agent that qualifies people from a product description and emails them.
- 3.4K GitHub stars
- Active in the last 30 days
- Open source (GPL-3.0)
★ 3.4KLast active Oct 23, 2026
AFreshness: A–Security: not graded yet
3
harvey
ethanplusai
Autonomous cold-email sales agent that runs on your Claude Code or Codex subscription and works conversations toward booked meetings.
- 2.4K GitHub stars
- Active in the last 30 days
- Open source (MIT)
★ 2.4KLast active Oct 24, 2026
AFreshness: A–Security: not graded yet
4
oneshot-gtm
oneshot-agent
Outbound sales agent for early founders: finds prospects, drafts messages for your approval, then sends them.
- Active in the last 30 days
- Open source (MIT)
★ 672Last active Oct 24, 2026
AFreshness: A–Security: not graded yet
5
open-instinct
mariagorskikh
Open-source personal agent you text over iMessage, running in its own cloud microVM with app connectors and approval-gated payments.
- Active in the last 30 days
- Open source (MIT)
★ 397Last active Oct 16, 2026
AFreshness: A–Security: not graded yet

Search AI agents for email → All agents

No-code builders 1 tagged

1
Lindy
Lindy
AI assistant that works across connected tools, Slack, iMessage and email, using credits, routines and approvals before outside actions
CFreshness: C–Security: not graded yet

Search no-code builders for email → All no-code builders

For business buyers: agents with stated pricing

Only agents whose listing states pricing are shown, with what the listing says. Check the publisher's pricing page before you buy.

Agent	Pricing in its listing	Source
HARPA AIHARPA AI	Paid; pricing page checked Oct 2026	Pricing page
JuiceboxJuicebox	Freemium with a free tier; $0 to $199 per month; pricing page checked Oct 2026	Pricing page
Qualified PiperQualified	Enterprise; pricing page checked Oct 2026	Pricing page
ShortwaveShortwave	Paid; $30 to $120 per month; pricing page checked Oct 2026	Pricing page
UnifyUnify	Freemium with a free tier; $0 to $60 per month; pricing page checked Oct 2026	Pricing page

Questions

What are the top tools for email?: By listing rank, the top MCP server is Inbox Zero, the top agent skill is webiny-mailer-smtp and the top AI agent is rowboat. Rank weighs adoption, freshness, documentation and publisher identity; money never changes it.
How many tools does the catalog list for email?: 86 listings are tagged for it: 51 MCP servers, 6 agent skills, 1 plugin, 1 agent framework, 26 AI agents and 1 no-code agent builder. Tags come from an automated enrichment pass over the top-ranked listings, so tools outside that pass are not counted.
Which AI apps do the MCP servers work with?: Of the 51 MCP servers, 50 list Claude Code, 50 list Cursor and 50 list VS Code as a supported host. Open a listing for its install command and the other hosts it names.
Do the AI agents for email cost money?: Pricing is stated for 5 of the 26 agents: HARPA AI (paid), Juicebox (freemium with a free tier), Qualified Piper (enterprise). The other agents state no pricing in their listings.

86 listings are tagged for this use case; the lists above show the top entries.