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Show HN: Free WhatsApp MCP (+UI) – Give Your AI Agents Access to WhatsApp

1 points by fabian_shipamax ↗ HN
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

17 comments

[ 2.2 ms ] story [ 19.1 ms ] thread
kreidema
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?
LawrenceKerr
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?

lordgrenville
Am I correct in guessing that this is a ToS violation and could lead to getting blocked?
gcgbarbosa
This is ToS violation for sure. OP will soon receive a letter from Zuck's lawyers
TZubiri
Breaks ToS

Will be used to spam

lbrito
Are people really this nonchalant about giving away their private whatsapp conversations to the likes of Anthropic and Openai?
robertclaus
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
Oh gosh, if only it was just the whatsapp chats...
[deleted]
(comment deleted)
monononon34
it looks like a dangerous. i can't trust the LLM
yablak
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.

KellyCriterion
Take a look at www.superchat.com, they are doing something similar for B2B
nom
Using this will get your WhatsApp account banned sooner or later.