diff --git a/.cursor-plugin/marketplace.json b/.cursor-plugin/marketplace.json
index d7e5a268a..003ea47cc 100644
--- a/.cursor-plugin/marketplace.json
+++ b/.cursor-plugin/marketplace.json
@@ -337,6 +337,11 @@
       "name": "x-ads",
       "source": "third_party/x-ads",
       "description": "Manage ad campaigns, create ads, track conversions, and pull performance stats."
+    },
+    {
+      "name": "attio",
+      "source": "third_party/attio",
+      "description": "Search and update CRM records, lists, notes, and tasks."
     }
   ]
 }
diff --git a/README.md b/README.md
index 758e4e974..e9c711178 100644
--- a/README.md
+++ b/README.md
@@ -69,6 +69,7 @@ Official Cursor plugins for popular developer tools, frameworks, and SaaS produc
 | `similarweb` | [Similarweb](third_party/similarweb/) | Cursor | Integrations | Analyze website traffic, audiences, and competitors. |
 | `xero` | [Xero](third_party/xero/) | Cursor | Integrations | Read and write invoices, contacts, reports, and payroll. |
 | `x-ads` | [X Ads](third_party/x-ads/) | Cursor | Integrations | Manage ad campaigns, create ads, track conversions, and pull performance stats. |
+| `attio` | [Attio](third_party/attio/) | Cursor | Integrations | Search and update CRM records, lists, notes, and tasks. |
 Author values match each plugin’s `plugin.json` `author.name` (Cursor lists `plugins@cursor.com` in the manifest).
 
 ## Repository structure
diff --git a/third_party/attio/.cursor-plugin/plugin.json b/third_party/attio/.cursor-plugin/plugin.json
new file mode 100644
index 000000000..79410d2bb
--- /dev/null
+++ b/third_party/attio/.cursor-plugin/plugin.json
@@ -0,0 +1,35 @@
+{
+  "name": "attio",
+  "displayName": "Attio",
+  "version": "1.0.0",
+  "minClientVersions": {
+    "cursor": "3.13.0"
+  },
+  "description": "Search and update CRM records, lists, notes, and tasks.",
+  "author": {
+    "name": "Cursor",
+    "email": "plugins@cursor.com"
+  },
+  "homepage": "https://docs.attio.com/mcp/overview",
+  "repository": "https://github.com/cursor/plugins",
+  "license": "MIT",
+  "logo": "assets/logo.png",
+  "keywords": [
+    "attio",
+    "crm",
+    "mcp",
+    "sales",
+    "records",
+    "lists",
+    "notes",
+    "tasks"
+  ],
+  "category": "integrations",
+  "tags": [
+    "attio",
+    "crm",
+    "sales",
+    "mcp"
+  ],
+  "mcpServers": "./mcp.json"
+}
diff --git a/third_party/attio/CHANGELOG.md b/third_party/attio/CHANGELOG.md
new file mode 100644
index 000000000..732ecbcb8
--- /dev/null
+++ b/third_party/attio/CHANGELOG.md
@@ -0,0 +1,9 @@
+# Changelog
+
+All notable changes to this plugin will be documented here.
+
+## 1.0.0 — initial release
+
+- Added the `attio` MCP server pointing at Attio's hosted Streamable HTTP endpoint (`https://mcp.attio.com/mcp`).
+- Auth uses OAuth with Attio user login — no API key or client ID to configure.
+- Logo: Attio's official mark, from the `attio` GitHub organization.
diff --git a/third_party/attio/LICENSE b/third_party/attio/LICENSE
new file mode 100644
index 000000000..ca2bba771
--- /dev/null
+++ b/third_party/attio/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/attio/README.md b/third_party/attio/README.md
new file mode 100644
index 000000000..701ec9858
--- /dev/null
+++ b/third_party/attio/README.md
@@ -0,0 +1,68 @@
+# Attio
+
+Cursor plugin that connects agents to [Attio](https://attio.com) through Attio's official remote [Model Context Protocol](https://modelcontextprotocol.io/) server.
+
+Search, create, and update CRM records (people, companies, deals, and custom objects), work with lists, notes, and tasks, and search emails, meetings, and comments in the signed-in Attio workspace.
+
+## Install
+
+1. Open **Cursor Settings → Plugins**.
+2. Search for **Attio**.
+3. Click **Install**, then complete the Attio sign-in prompt.
+
+Or run `/add-plugin attio` in chat.
+
+## MCP
+
+```json
+{
+  "mcpServers": {
+    "attio": {
+      "type": "http",
+      "url": "https://mcp.attio.com/mcp"
+    }
+  }
+}
+```
+
+Auth is OAuth against Attio. Cursor prompts for Attio user login when the plugin connects — there is no API key or client ID to configure.
+
+## Before you connect
+
+You need an Attio account with access to a workspace. Attio MCP is available to all workspace members.
+
+## What agents can do
+
+| Category | Capabilities |
+| --- | --- |
+| Records & objects | Search, create, update, upsert, and merge people, companies, deals, and custom objects |
+| Lists | Inspect lists and attributes, add records, and update list entries and stages |
+| Notes | Search, create, and update notes; semantic search over note content |
+| Tasks | List, create, and update tasks |
+| Meetings & calls | Search call recordings and transcripts |
+| Emails | Search and read emails |
+| Comments | List and add comments on records and list entries |
+| Workspace | List members and teams; inspect the signed-in user |
+| Reporting | Run basic reports; optional read-only SQL on some plans |
+
+The hosted runtime is the source of truth for tool names and schemas.
+
+## Notes
+
+- Tool calls run as the Attio user who authorizes the connection and cannot exceed that user's permissions.
+- Read operations are auto-approved. Write operations request confirmation before they change workspace data.
+- `query-particle-sql` (read-only SQL) is not available on every Attio billing plan.
+- Attio hosts the server itself; this plugin does not wrap a local stdio server.
+- Revoke access at any time from your Attio account settings.
+
+## Docs
+
+- Attio MCP overview: https://docs.attio.com/mcp/overview
+- Attio MCP help center: https://attio.com/help/reference/attio-ai/attio-mcp
+- Server URL: https://mcp.attio.com/mcp
+
+Logo is Attio's official mark, from the `attio` GitHub organization.
+
+## License
+
+MIT
diff --git a/third_party/attio/assets/logo.png b/third_party/attio/assets/logo.png
new file mode 100644
index 000000000..f715fe51e
Binary files /dev/null and b/third_party/attio/assets/logo.png differ
diff --git a/third_party/attio/mcp.json b/third_party/attio/mcp.json
new file mode 100644
index 000000000..2d3a81982
--- /dev/null
+++ b/third_party/attio/mcp.json
@@ -0,0 +1,8 @@
+{
+  "mcpServers": {
+    "attio": {
+      "type": "http",
+      "url": "https://mcp.attio.com/mcp"
+    }
+  }
+}