Hail alternatives

Search ~300 airlines and book flights with a checkout link. OAuth sign-in by email code.

2

Zenvia

by codespar

B

MCP server for Zenvia — SMS, WhatsApp, RCS, Email, Voice, Facebook messaging, templates and reports

3

EmptyInbox

by cnohall

B

Zero-config disposable email inboxes for AI agents: create, read mail, await verify codes.

4

Val Town

by val.town

A

Deploy serverless TypeScript on Val Town: HTTP vals, cron, SQLite, email, OAuth.

5

ParseAPI

by parseapi.com

A

Official ParseAPI MCP. Place, IP, email, phone, weather, currency lookups.

6

Mbox

by arose26

A

Search local email archives (.mbox/.eml) entirely on your machine. No OAuth, no cloud.

7

Palmyr

by palmyr.ai

B

Agent infra: email, phone, social, domains, VPS, wallets. Paid per-action via x402, no API key.

8

Meser10

by meser10

B

Operate the Meser 10 email and SMS platform from any MCP client. Read-only by default.

Gives an AI agent a disposable email and a real UK phone number to test signup flows.

10

SenderKit

by senderkit.com

A

Build and send email, SMS, and push straight from your AI agent.

11

Bird

by bird.com

A

Send and receive across email, SMS, WhatsApp, and voice. One API, one contract.

12

Send16

by spruikco

B

Email for AI agents: send mail, manage contacts, automations & webhooks. Zero-DNS first send.

13

emailmd

by emailmd.dev

A

Render markdown into email-safe HTML, lint drafts for deliverability problems, and preview emails.

14

OpenOSINT

by OpenOSINT

C

AI-powered OSINT agent & MCP server. 16 tools: email, breach, IP, WHOIS, DNS, Shodan, GitHub & more.

15

Agent-Native Mail

by BuilderIO

A

Agent-Native Superhuman - email client with keyboard shortcuts and AI triage

16

Atomic Mail

by Atomic-Mail

A

Programmable email inbox for AI agents — JMAP, PoW auth, stdio MCP server.

17

Email Inbox API + Sending by Sendmux

by Sendmux

A

AI email inbox and sending tools with attachments, search, live events, and webhooks.

18

Local MCP

by local-mcp.com

C

Mac & Windows: let ChatGPT, Claude & Cursor use your email, calendar, iMessage, Teams, files. Free.

19

Email

by codefuturist

B

IMAP/SMTP email MCP server — 52 tools, stdio + HTTP, IMAP IDLE push, multi-account, AI triage.

20

Imap

by nikolausm

A

IMAP/SMTP MCP server to search, read, organize, send, reply & forward email for AI assistants

21

e2a — email for AI agents

by e2a.dev

A

Authenticated email gateway for AI agents — per-agent inboxes, HITL approval, SPF/DKIM verified.

22

Outlook Assistant

by littlebearapps

A

Microsoft Outlook MCP server — 22 tools for email, calendar, contacts, and mailbox management.

23

Clippy

by neilberkman

A

Copy AI-generated content to the macOS clipboard: rich Gmail-ready email drafts, text, and files

24

Emailens MCP

by emailens

A

Analyze, audit, fix and diff HTML, MJML, Maizzle and React Email across 21 email clients.