Show HN: Give your AI agents access to WhatsApp

Hi,

I built Chat-Man because I wanted a cheap way to give my agents access to WhatsApp without integrating a WhatsApp library separately in every project.

You get WhatsApp MCP server, so you can connect WhatsApp to an agent and programmatically read, search, extract and send messages - but also have a web UI for non-techies.

You can also receive webhooks for incoming messages for starred conversations.

What you can do with the MCP? -Read WhatsApp messages and turn them into CRM records -Summarise conversations or groups -Extract structured information from messages -Find messages, participants or other WhatsApp data -Send messages -Manage group memberships

Of course.. you always need to follow data protection regulation.

The web UI: -Edit group details -See who joined or left -See who is most active -Export group members -Match members against a CSV (e.g. from a CRM) -Bulk message members -Bulk kick members -Create invite links For individual contacts, you can send messages directly from the UI.

Why I built it for myself? I needed WhatsApp access for several projects (hermo.ai, florahaus.co.uk, …) and didn't want to pay for a WhatsApp integration for each project.

Link: https://chat-man.net

I’d love to get some feedback, especially from people building agents that need access to WhatsApp. Fabian

14 points | by fabian_shipamax 1 hour ago

12 comments

  • yablak 28 minutes ago
    Looked into this a while back. WhatsApp MCP servers attach as a second device to WhatsApp and pull down your message history.

    Most of the ones I've seen on github do not store the messages encrypted locally.

    When evaluating these tools, check to see what they store unencrypted on disk. A quick search shows that only one seems to check the boxes:

    https://github.com/adelaidasofia/whatsapp-mcp

    However I haven't tested it. And it does phone home, you may want to disable that before running it.

  • kreidema 1 hour ago
    Do I understand correctly that your service works as a registered device into my whatsapp account with full "admin" like access? This seems a bit harsh for the sensitive data that peoples wahatsapp contain? Or am I missing a usecase here where that is unproblematic? Business accounts maybe?
    [-]
    • asteroidburger 1 hour ago
      Businesses should be using WhatsApp business accounts. They cost money per message sent and don’t support groups, but it’s the officially sanctioned way to do it.
      [-]
      • fabian_shipamax 1 hour ago
        Businesses can use the official API which is costly and takes time to set up. Correct.
    • fabian_shipamax 1 hour ago
      Not quite sure what you mean with admin access. There no such concept. But you can basically do anything a user can do - but via MCP.
      [-]
      • blueplanet200 32 minutes ago
        Exactly. OP meant that it has permission to do anything, hence "admin".
  • lordgrenville 1 hour ago
    Am I correct in guessing that this is a ToS violation and could lead to getting blocked?
    [-]
    • gcgbarbosa 33 minutes ago
      This is ToS violation for sure. OP will soon receive a letter from Zuck's lawyers
    • fabian_shipamax 57 minutes ago
      You are right that this is a consideration and risk. But it can make your life much easier. The reality is that these tool are available now. This is in fact not the first one like this. It can make the work of small businesses or clubs more more efficient.
      [-]
      • dpoloncsak 41 minutes ago
        ...with the risk of getting banned, you can't reasonably use this for anything 'important'.

        In order to make my life easier, it probably needs to be doing important stuff.

        You can't hide behind 'other apps are doing it too', if my 'important business account' or whatever gets banned from using your tool, I'd be upset at you.

        How do you guarantee your uptime SLA if my account may get banned any second?

  • LawrenceKerr 1 hour ago
    Does this require a Meta / WhatsApp business account?

    If not, is this a solution using WhatsApp Web in the backend (like Baileys does)? If this is the case, how does your solution avoid getting blocked or banned? I used Baileys once in an MVP with only 7 users, and my agent got blocked really quickly after just a few days of using it. So I guess the official path is the only way to go?

    [-]
    • fabian_shipamax 1 hour ago
      No it doesn’t.
      [-]
      • fabian_shipamax 1 hour ago
        If you use it for personal and not excessively you won’t get banned is my experience. You if you start messaging new contacts on a large scale you probably will.
        [-]
        • thomasjeff1 33 minutes ago
          That is normal when you lose your contacts and do an external backup. WhatsApp thinks I am texting large number of strangers whereas I already know those contacts. Happened to me. Lost access to WhatsApp.
  • nom 13 minutes ago
    Using this will get your WhatsApp account banned sooner or later.
  • KellyCriterion 17 minutes ago
    Take a look at www.superchat.com, they are doing something similar for B2B
  • monononon34 34 minutes ago
    it looks like a dangerous. i can't trust the LLM
    [-]
    • monononon34 32 minutes ago
      does it have any security system?
  • TZubiri 55 minutes ago
    Breaks ToS

    Will be used to spam

    [-]
    • liotier 46 minutes ago
      Any opening of proprietary chat to useful tools will be used for spam too. It is a curse.
  • cute_boi 32 minutes ago
    how is this different than https://github.com/WhiskeySockets/Baileys which seems more reliable?
  • lbrito 47 minutes ago
    Are people really this nonchalant about giving away their private whatsapp conversations to the likes of Anthropic and Openai?
    [-]
    • robertclaus 36 minutes ago
      I'm much more concerned about the odds that this tool is vibe coded and will leak the conversations everywhere other than the LLM agent I've already vetted.
    • addag 30 minutes ago
      Oh gosh, if only it was just the whatsapp chats...
    • dpoloncsak 46 minutes ago
      This can be used locally, no?
      [-]
      • testycool 44 minutes ago
        And you typically use them for business, not on private accounts.
        [-]
        • lbrito 29 minutes ago
          Most of the use cases in the page are personal, like Family Group, Sports Group and so on.

          "Pick members and send them a personal direct message".

      • fabian_shipamax 42 minutes ago
        It’s a cloud product
        [-]
        • dpoloncsak 31 minutes ago
          Sorry, I may has misphrased what I meant. Can I use this with a local model? Or is it locked to Claude
  • catidegla 33 minutes ago
    [flagged]