diff --git a/.cursor-plugin/marketplace.json b/.cursor-plugin/marketplace.json
index 4c2f963ff..b8b863993 100644
--- a/.cursor-plugin/marketplace.json
+++ b/.cursor-plugin/marketplace.json
@@ -518,6 +518,11 @@
       "source": "third_party/workday",
       "description": "Look up workers, organizations, time off, payroll, and recruiting data in Workday."
     },
+    {
+      "name": "whatsapp-business",
+      "source": "third_party/whatsapp-business",
+      "description": "Send messages and manage templates, contacts, and phone numbers in WhatsApp Business."
+    },
     {
       "name": "square",
       "source": "third_party/square",
diff --git a/README.md b/README.md
index 61eca8baf..b42a64469 100644
--- a/README.md
+++ b/README.md
@@ -95,6 +95,7 @@ Official Cursor plugins for popular developer tools, frameworks, and SaaS produc
 | `shopify-store` | [Shopify](third_party/shopify-store/) | Cursor | Integrations | Connect your Shopify store so Grok can answer questions about products, orders, customers, inventory, and sales. |
 | `quickbooks-online` | [QuickBooks Online](third_party/quickbooks-online/) | Cursor | Integrations | Read invoices, bills, expenses, customers, accounts, and financial reports. |
 | `workday` | [Workday](third_party/workday/) | Cursor | Integrations | Look up workers, organizations, time off, payroll, and recruiting data in Workday. |
+| `whatsapp-business` | [WhatsApp Business](third_party/whatsapp-business/) | Cursor | Integrations | Send messages and manage templates, contacts, and phone numbers in WhatsApp Business. |
 | `square` | [Square](third_party/square/) | Cursor | Integrations | Work with payments, orders, catalog, customers, and invoices. |
 | `tailscale` | [Tailscale](third_party/tailscale/) | Cursor | Integrations | Let Grok Bot reach MCP servers on your private Tailscale network. Sign in to Tailscale to connect your tailnet; Grok Bot joins it as one tagged device and only reaches the hosts you grant to tag:grokbot. |
 | `highlevel` | [HighLevel](third_party/highlevel/) | Cursor | Integrations | Work with contacts, conversations, opportunities, calendars, and payments. |
diff --git a/third_party/whatsapp-business/.cursor-plugin/plugin.json b/third_party/whatsapp-business/.cursor-plugin/plugin.json
new file mode 100644
index 000000000..373917f4b
--- /dev/null
+++ b/third_party/whatsapp-business/.cursor-plugin/plugin.json
@@ -0,0 +1,63 @@
+{
+  "name": "whatsapp-business",
+  "displayName": "WhatsApp Business",
+  "version": "1.0.0",
+  "minClientVersions": {
+    "cursor": "3.19.0"
+  },
+  "description": "Send messages and manage templates, contacts, and phone numbers in WhatsApp Business.",
+  "author": {
+    "name": "Cursor",
+    "email": "plugins@cursor.com"
+  },
+  "homepage": "https://github.com/cursor/plugins/tree/main/third_party/whatsapp-business",
+  "repository": "https://github.com/cursor/plugins",
+  "license": "MIT",
+  "logo": "assets/logo.png",
+  "keywords": [
+    "whatsapp",
+    "whatsapp business",
+    "meta",
+    "messaging",
+    "mcp"
+  ],
+  "category": "integrations",
+  "tags": [
+    "whatsapp",
+    "whatsapp business",
+    "meta",
+    "messaging",
+    "mcp"
+  ],
+  "variables": {
+    "type": "object",
+    "additionalProperties": false,
+    "required": [
+      "WHATSAPP_BUSINESS_ACCOUNT_ID",
+      "WHATSAPP_BUSINESS_PHONE_NUMBER_ID",
+      "WHATSAPP_BUSINESS_ACCESS_TOKEN"
+    ],
+    "properties": {
+      "WHATSAPP_BUSINESS_ACCOUNT_ID": {
+        "type": "string",
+        "title": "WhatsApp Business Account ID",
+        "description": "Shown next to your account name in WhatsApp Manager.",
+        "minLength": 1
+      },
+      "WHATSAPP_BUSINESS_PHONE_NUMBER_ID": {
+        "type": "string",
+        "title": "Phone number ID",
+        "description": "The long numeric ID under Account tools > Phone numbers in WhatsApp Manager, not the phone number itself.",
+        "minLength": 1
+      },
+      "WHATSAPP_BUSINESS_ACCESS_TOKEN": {
+        "type": "string",
+        "title": "Access token",
+        "description": "A system user token with the whatsapp_business_messaging and whatsapp_business_management permissions.",
+        "writeOnly": true,
+        "format": "password",
+        "minLength": 1
+      }
+    }
+  }
+}
diff --git a/third_party/whatsapp-business/CHANGELOG.md b/third_party/whatsapp-business/CHANGELOG.md
new file mode 100644
index 000000000..eb7206e79
--- /dev/null
+++ b/third_party/whatsapp-business/CHANGELOG.md
@@ -0,0 +1,11 @@
+# Changelog
+
+All notable changes to this plugin will be documented here.
+
+## 1.0.0 — initial release
+
+- Added the `whatsapp-business` plugin, the opt-in for the WhatsApp Business MCP server that Cursor hosts.
+- Carries no MCP server definition: the server is Cursor-side, so installing the plugin is the whole configuration.
+- Each member enters their own `WHATSAPP_BUSINESS_ACCOUNT_ID`, `WHATSAPP_BUSINESS_PHONE_NUMBER_ID`, and `WHATSAPP_BUSINESS_ACCESS_TOKEN`. These are per-member values, not team settings.
+- The access token is a Meta system user token with the `whatsapp_business_messaging` and `whatsapp_business_management` permissions.
+- Logo: WhatsApp's official mark, from `whatsapp.com`.
diff --git a/third_party/whatsapp-business/LICENSE b/third_party/whatsapp-business/LICENSE
new file mode 100644
index 000000000..ca2bba771
--- /dev/null
+++ b/third_party/whatsapp-business/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2026 Cursor
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/third_party/whatsapp-business/README.md b/third_party/whatsapp-business/README.md
new file mode 100644
index 000000000..b4e4e9ea5
--- /dev/null
+++ b/third_party/whatsapp-business/README.md
@@ -0,0 +1,77 @@
+# WhatsApp Business
+
+Cursor plugin that connects agents to [WhatsApp Business](https://business.whatsapp.com) — Meta's messaging platform for businesses — through a [Model Context Protocol](https://modelcontextprotocol.io/) server that Cursor hosts.
+
+Work with a WhatsApp Business Account: send messages from your business phone number, manage message templates, and look up contacts and phone numbers.
+
+## Install
+
+1. Open **Cursor Settings → Plugins**.
+2. Search for **WhatsApp Business** and click **Install**.
+3. Enter your WhatsApp Business Account ID, phone number ID, and access token (see [Before you connect](#before-you-connect)).
+
+Or run `/add-plugin whatsapp-business` in chat.
+
+## MCP
+
+This plugin ships no `mcp.json`, and that is deliberate.
+
+Every other connector in this repository either points at a vendor's hosted endpoint or runs a package locally over stdio, so it carries its own server definition. WhatsApp Business does not: Cursor runs the server, and the plugin exists only as the opt-in that turns it on for your account. There is no command to run and no MCP endpoint to configure.
+
+One consequence worth knowing: because the server is not declared here, you will not find it in a local `mcp.json` and you cannot point another MCP client at it. It is reachable from Cursor only.
+
+## Before you connect
+
+Each person who installs the plugin enters their own three values. These are per-member settings, so a team admin cannot set them for everyone.
+
+### 1. Create a system user token in Meta
+
+1. In [Meta Business Suite](https://business.facebook.com), open **Business settings → Users → System users** and add a system user, or pick an existing one.
+2. Under **Assign assets**, give the system user access to your WhatsApp Business Account.
+3. Click **Generate new token**, choose the Meta app connected to your WhatsApp Business Account, and select the `whatsapp_business_messaging` and `whatsapp_business_management` permissions.
+4. Copy the token. Meta shows it only once.
+
+### 2. Find your IDs in WhatsApp Manager
+
+- **WhatsApp Business Account ID:** shown next to your account name in [WhatsApp Manager](https://business.facebook.com/wa/manage/home/).
+- **Phone number ID:** the long numeric ID under **Account tools → Phone numbers**. Use the ID, not the phone number itself.
+
+### 3. Enter the values in Cursor
+
+All three fields are required:
+
+| Field | Value |
+| --- | --- |
+| `WHATSAPP_BUSINESS_ACCOUNT_ID` | WhatsApp Business Account ID from WhatsApp Manager. |
+| `WHATSAPP_BUSINESS_PHONE_NUMBER_ID` | Phone number ID from **Account tools → Phone numbers**. Agents send messages from this number. |
+| `WHATSAPP_BUSINESS_ACCESS_TOKEN` | The system user token from step 1. Treated as a secret and never shown back. |
+
+## What agents can do
+
+| Category | Capabilities |
+| --- | --- |
+| Messages | Send text and template messages from your business phone number |
+| Templates | List and manage message templates |
+| Contacts | Look up the contacts your business messages |
+| Phone numbers | Read the phone numbers on your WhatsApp Business Account |
+
+The server is the source of truth for tool names and schemas.
+
+## Notes
+
+- Access follows the system user token. The connector can reach only the WhatsApp Business Accounts assigned to that system user, within the token's permissions.
+- WhatsApp only allows free-form messages within 24 hours of a customer's last message. Outside that window, agents must send an approved template.
+- Messages go out from your real business number and can incur Meta's messaging charges. Review what agents send.
+- Disconnecting the connector in Cursor deletes your saved account ID, phone number ID, and access token. Revoking the token in Meta Business Settings ends Cursor's access to your account.
+
+## Docs
+
+- WhatsApp Business Platform: https://business.whatsapp.com
+- WhatsApp Cloud API: https://developers.facebook.com/docs/whatsapp/cloud-api
+- Model Context Protocol: https://modelcontextprotocol.io
+
+Logo is WhatsApp's official mark, from `whatsapp.com`.
+
+## License
+
+MIT
diff --git a/third_party/whatsapp-business/assets/logo.png b/third_party/whatsapp-business/assets/logo.png
new file mode 100644
index 000000000..aca3c0ef0
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