SendGrid MCP Server alternatives

1

Agent-Native Mail

by BuilderIO

A

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

2

Atomic Mail

by Atomic-Mail

A

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

3

Agent Email

by UseJunior

A

Local email connectivity for AI agents — read, draft, send, and organize Outlook mail via MCP

4

Ray notifications

by gege-mn

A

Send email, push, Slack, Discord, Telegram and webhook notifications and manage templates with Ray.

5

EmptyInbox

by cnohall

B

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

6

Postfleet

by postfleet.ai

A

Give an AI agent its own email address: send, reply, read, and wait for mail.

7

Mailappmcp

by aernouddekker

A

MCP server for macOS Mail.app — gives Claude native email access via AppleScript

8

MCP

by openagentemail

B

Unlimited agent mailboxes — create identities, read/wait for mail, extract OTPs, send email.

9

Samva MCP

by samva.dev

A

Authenticated Samva email tools, including public documentation and template discovery.

Disposable email inboxes for AI agents: create, wait for mail, extract verification codes

11

Assistant Mail MCP

by AssistantMail

B

Agent email with allowlist and consent via AssistantMail.

12

Your Mail

by wildsurfer

B

Read-only, self-hosted MCP access to IMAP email, mirrored locally and indexed by notmuch.

13

Agent Email List — Free SMTP Relay for AI Agents

by ai.agentemaillist.com

B

Free transactional email + SMTP relay. Agents self-signup, no API key needed to start.

14

AgentiSend

by fortuneflick

A

Transactional email API for AI agents: verified domains, a per-sender budget, and a kill switch.

15

RuSender

by Rusender

A

Manage email campaigns, contacts and deliverability analytics in RuSender from an AI assistant.

16

TheQRCode.io

by theqrcode.io

A

Free styled QR codes, no key: URL, WiFi, contact, text, email. API key adds saved codes + analytics.

17

Sendinel

by sendinel.ai

B

AI-controlled email ops for campaigns, contacts, segments, analytics, and sending.

18

GoodSender

by good-sender

B

Free consent-based emailing, blog publishing, and interactive email template design tools

19

Eusend

by eusend.dev

B

Send transactional email and manage domains, audiences, and broadcasts from any MCP client.

20

Mails.ai — Agent Email

by RolloutsAI

C

A real inbox for AI agents: send, receive and thread email, behind a prompt-injection firewall.

21

OpenOSINT

by OpenOSINT

C

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

22

Email Inbox API + Sending by Sendmux

by Sendmux

A

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

23

Local

by local-mcp.com

C

Let ChatGPT, Claude & Cursor use your Mac: email, calendar, iMessage, Teams, files. Local, free.

24

Outlook Assistant

by littlebearapps

A

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