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The ChatSyncs MCP server connects your ChatSyncs account to an AI assistant like Claude. Once it’s connected, you can run your WhatsApp business by asking, in plain English:
“Send Rahul a message saying his order shipped today.” “Who messaged us in the last hour and hasn’t had a reply?” “Tag everyone who asked about pricing as Hot Lead and assign them to Priya.”
The assistant works out which ChatSyncs actions those need, and does them on your account.
MCP stands for Model Context Protocol — an open standard for letting AI assistants use real tools. You don’t need to understand the protocol to use this. You paste your ChatSyncs API key once, and the assistant gains a set of ChatSyncs abilities.

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Is this the same as the Developer API?

It’s the same power, without the code. The Developer API is for developers who write a program that calls ChatSyncs. The MCP server is that API already written up, so an AI assistant can use it for you.
If you already use the Developer API, nothing changes. The MCP server sits on top of exactly the same endpoints, using the same API key.

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What the assistant can do

Messaging

Send text, files, images and approved templates. Send messages with tappable reply buttons. Check whether a message was delivered or read.

Contacts

Look someone up, add a contact, update their details, read the conversation history, leave an internal note.

Organising

Create labels and apply them, set custom fields, enrol people in follow-up sequences, resolve or archive conversations.

Team and shop

Assign a chat to a team member, trigger a chatbot flow, list catalog orders and move them to Shipped or Delivered.
There are 32 abilities in total. The full list is on the Tools reference.

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What you need first

1

A ChatSyncs account with a connected WhatsApp number

The assistant acts on your existing setup. If you haven’t connected a number yet, start with Connect your number to ChatSyncs.
2

Your ChatSyncs API key

Found under Control Panel → Developer. This is what you’ll paste when connecting.
3

An app that speaks MCP

Claude Desktop, claude.ai, Claude Code and several other tools. See Connect to Claude for the exact steps for each.

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The 24-hour rule still applies

This is WhatsApp’s rule, not ChatSyncs’ one, and the AI cannot get around it:
  • Inside 24 hours of a customer messaging you, you can reply with anything — free text, images, files, buttons.
  • Outside that window, only an approved template will be delivered.
So “message everyone on my list about the sale” only works with an approved marketing template. If you ask the assistant to send plain text to someone who last messaged three days ago, WhatsApp will reject it. The assistant knows this rule and will normally tell you before trying.
Messages sent through the assistant are real. They reach real customers, they count against your message credits, and they cannot be unsent. Read what the assistant proposes before you approve it — Claude asks for permission before every action.

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What it costs

Nothing extra from ChatSyncs. The MCP server uses your existing plan and its limits: your subscriber cap, your message credits, and Meta’s own per-conversation charges. If you hit a limit, the assistant will show you the same message the API returns.

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What the AI can’t do

  • Broadcast to a whole list in one step. There’s no bulk-send ability, on purpose. The assistant would have to message people one at a time, which is slow and easy to get wrong. Use Broadcasting in ChatSyncs for campaigns.
  • Create or approve message templates. Make those in ChatSyncs; the assistant can then send the approved ones.
  • Change your billing, plan or account settings.
  • See anything without your permission. Every action is approved by you in the moment.

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Frequently asked

No. That’s the point of it. Connecting is a matter of pasting your API key into a form — there is no code anywhere in the process.
Your key is checked with ChatSyncs when you connect, then stored by your AI assistant, not by ChatSyncs’ MCP server — the server keeps no copy. You can revoke access at any time by regenerating the key under Control Panel → Developer, which instantly stops any assistant that was using the old one. See Connect to Claude for detail.
Yes. Each person connects with an API key from your ChatSyncs account. Bear in mind a key carries the permissions of the account it came from.
No. Claude asks for your approval before each action, and actions that delete a contact or block someone are flagged for a stronger confirmation.
Any app that supports MCP. Claude Desktop, claude.ai and Claude Code are covered step-by-step in Connect to Claude; other MCP clients work the same way using the same URL.
No. Your ChatSyncs chatbots keep answering customers automatically, around the clock. The MCP server is for you — a way to run your account by asking, instead of clicking.