nowfound

AI · alternatives · 2026

24 alternatives to Agent Inbox

Give your agent an email address, Slack and Telegram handle

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites, 1 of them free or with a free tier.

  1. 1
    OpenMail▲169

    Give your AI agents an identity through email

    15d ago · openmail.sh · its alternatives →

  2. 2
    AgentMail▲258

    Email Inboxes for AI Agents

    Apr 2026 · agentmail.to · its alternatives →

  3. 3
    Outerspan▲205

    Deploy agents that have their own email inbox

    2025 · outerspan.com · its alternatives →

  4. 4

    Manage your inbox from Slack

    2017 · its alternatives →

  5. 5
    inbound ▲227

    Hey HN! I've been working on Inbound (inbound.new) - an email system that lets you programmatically manage email addresses and route them to AI agents, webhooks, or forward them anywhere. The core idea: instead of manually managing email addresses, you create them on-demand via API and route incoming emails to your AI agents or other automated systems. For AI Agents: Create [email protected] and emails get sent to your AI agent as webhooks. Your agent can reply using our SDK. Perfect for AI customer support or automated responses. For Email Forwarding: Set up [email protected] to…

    2025 · inbound.new · its alternatives →

  6. 6

    Real inboxes for AI agents, with trust built in

    2d ago · machinemail.dev · its alternatives →

  7. 7
    MailBot▲165

    Get notified of your important emails in Slack

    2016 · its alternatives →

  8. 8
    Agent Identityfree tier, from $19/mo▲71

    Give every AI agent real identities, inboxes, and a phone

    Sep 2026 · agent-identity.dev · its alternatives →

  9. 9

    Making checking your inbox as fun as using Slack

    2015 · goo.gl · its alternatives →

  10. 10AE

    Hi HN! We're Haakam, Michael, and Adi from AgentMail- a ycs25 company. We give AI agents their own email inboxes. Recently, we ran an experiment called Agent.Email. It's a signup flow designed specifically for AI agents instead of humans. The inspiration came from a few comments we received when we did our seed launch a few months back. They all came from the very apt observation that agents not being able to sign up to a product made for agents without human credentials was ironic and unideal. This is basically the thesis we built AgentMail on: The internet was made for humans exclusively,…

    May 2026 · its alternatives →

  11. 11

    Get your important emails delivered to a Slack channel

    2016 · its alternatives →

  12. 12

    Send or receive emails from Slack

    2021 · sharedinbox.co · its alternatives →

  13. 13

    Let your agents read, send, and react to email autonomously

    Jun 2026 · atomicmail.ai · its alternatives →

  14. 14

    AI-powered tool to immediately get more inbound sales

    2016 · callmaker.net · its alternatives →

  15. 15

    Give your AI agent its own verified email address — not access to yours. Send and receive via REST, SMTP, or MCP. Built for LangGraph, CrewAI, Mastra, Claude Code, Cursor. Human-in-the-loop approval, trust scores, GDPR-ready.

    Feb 2026 · mailmolt.com · its alternatives →

  16. 16

    Turn any email inbox into a native interface for AI agents

    Apr 2026 · blog.cloudflare.com · its alternatives →

  17. 17
    Nitrosend▲168

    Email for AI agents. They sign up, send and reply.

    Jul 2026 · nitrosend.com · its alternatives →

  18. 18
    MailClark▲198

    The Slack bot for external communications

    2016 · its alternatives →

  19. 19

    Quickly forward emails and attachments to Slack

    2019 · slack.com · its alternatives →

  20. 20

    Forward, add context, generate 👉 no more boring replies

    2024 · its alternatives →

  21. 21AE

    Hey HN, we're Haakam, Michael, and Adi. We're building AgentMail (https://agentmail.to/), an API to give AI agents their own email inboxes. We’re not talking about AI for your email, this is email for your AI. We started building email agents because they can converse with users in their inboxes, automate email-based workflows, and authenticate with third-party applications. Given these unique capabilities, we think email will be a core interface for agents. But we were building on top of Gmail, which was a struggle: poor API support, expensive subscriptions, rate limits,…

    2025 · chat.agentmail.to · its alternatives →

  22. 22
    TaCo▲135

    Manage Gmail and Slack in one place with AI

    2022 · sharetaco.com · its alternatives →

  23. 23

    Easy way for other teams to install your incoming webhooks

    2015 · its alternatives →

  24. 24
    Franke▲98

    Franke sorts your team's email into Slack

    2015 · its alternatives →

Also compare

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →