webhook-inbox alternatives

1

Email Inbox API + Sending by Sendmux

by Sendmux

A

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

2

Chatgenius

by SumCodeAI

B

ChatGenius tools: Instagram, Facebook, WhatsApp and SMS inbox, contacts, bookings, flows, posts.

3

PostZen

by postzen.dev

B

Schedule and publish social posts, manage the inbox, and read analytics across 10 platforms

4

GTD Brain

by gtdbrain.com

B

Getting Things Done (GTD) board: capture to Inbox, next actions by context, projects, waiting-for.

5

Atomic Mail

by Atomic-Mail

A

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

6

Ray notifications

by gege-mn

A

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

7

ExpenseBot

by TotesMagotes

B

Capture receipts, scan Gmail, analyze spending, and create reviewed reports from AI assistants.

8

Mailchimp

by cyanheads

A

Mailchimp via MCP: draft, test, and send campaigns; manage audiences and subscribers; pull reports.

9

SendSeven Messaging

by sendseven.com

A

Unified messaging MCP server: WhatsApp, Instagram, Telegram, SMS, Messenger & email support inbox

10

MailMask

by mailmask.studio

A

Email for agents: domains, aliases, IMAP mailboxes, DNS, sending and webhooks via one API key.

Ten x402-paid tools for JSON, YAML, cron, diff, text, DNS, WHOIS, GitHub, crypto, and email.

12

Email Spam Tester

by serg-tanichev

A

Test an email before it goes out: a disposable address, 41 checks with RFC citations, a fix plan.

13

octapi

by octapi.app

C

A business's WhatsApp front desk as tools: inbox, customers, catalogue, bookings, fees.

14

formcarry

by formcarry.com

B

Set up form handling for your site (email alerts, auto replies, webhooks) and query submissions.

15

TrustyCap

by trustycap.com

C

Production backend for AI-built apps: storage, data, jobs, webhooks, email, metering and billing.

16

FranklyMail Agentic Inbox

by naylalabs

C

Read and search FranklyMail email and prepare drafts, replies, and forwards for human approval.