Attio MCP Server

AI-powered access to Attio CRM. Manage contacts, companies, deals, tasks, and notes. Search records, update pipelines, and automate workflows for

Remote serverstreamable-httpPython

What is the Attio MCP server?

Attio MCP server is a hosted integration for AI assistants that speak the Model Context Protocol. AI-powered access to Attio CRM. Manage contacts, companies, deals, tasks, and notes. Search records, update pipelines, and automate workflows for sales and GTM.

What you get

A comprehensive Model Context Protocol (MCP) server for Attio, providing complete CRM surface coverage. This server enables AI assistants like Claude and ChatGPT to interact directly with your entire Attio workspace through natural language—manage Deals, Tasks, Lists, People, Companies, Records, and Notes without falling back to raw API calls.

What the assistant can call

Once Attio is connected, these are the calls the assistant has available:

  • filter-list-entries — Unified filtering with 4 modes
  • manage-list-entry — Unified entry management with 3 modes
  • get-list-entries — Retrieve list entries
  • get-record-list-memberships — Find record's list memberships

Configuration and credentials

You will need 4 environment variables: ATTIO_API_KEY, ATTIO_CLIENT_ID, ATTIO_CLIENT_SECRET, TOKEN_ENCRYPTION_KEY. The server will not start without them, which is usually why the tools fail to appear on a first run. Keep credentials in your client's env block or a secrets manager rather than in a file you might commit.

Setting it up

Being a remote server, there is no local install. You register the endpoint with your client, authorise it once, and the tools appear.

Choosing this one

Among the team communication options, the useful question is rarely "what can it do" but "what does it cost you to run" — permissions, credentials, and how much of your context its toolset consumes. Attio's toolset — filter-list-entries, manage-list-entry, get-list-entries and 1 more — is a fair guide to whether it matches your workflow. It is maintained by kesslerio; worth a glance at recent repository activity before you build anything load-bearing on it.

SyncDev reviews every entry in this directory against the project's own documentation before publishing, and revisits them as servers change.

Before you rely on it

  • Your data travels to the provider's service, so the usual questions apply about what you send and what they retain.
  • Missing credentials fail quietly in some clients — if no tools show up, check the environment block first.
  • MCP clients confirm each tool call by default. Leave that on until you have watched what the attio mcp server does with a few real requests.

Available tools

ToolWhat it does
filter-list-entriesUnified filtering with 4 modes
manage-list-entryUnified entry management with 3 modes
get-list-entriesRetrieve list entries
get-record-list-membershipsFind record's list memberships

How to install the Attio MCP server

{
  "mcpServers": {
    "attio": {
      "command": "npx",
      "args": ["-y", "attio-discover"],
      "env": {
        "ATTIO_API_KEY": "your-value",
        "ATTIO_CLIENT_ID": "your-value",
        "ATTIO_CLIENT_SECRET": "your-value",
        "TOKEN_ENCRYPTION_KEY": "your-value"
      }
    }
  }
}

Add to claude_desktop_config.json, then restart Claude Desktop.

Configuration

VariableDescriptionRequired
ATTIO_API_KEYCredential the server authenticates with.Yes
ATTIO_CLIENT_IDConfiguration value read at startup.Optional
ATTIO_CLIENT_SECRETCredential the server authenticates with.Yes
TOKEN_ENCRYPTION_KEYCredential the server authenticates with.Yes

Example prompts to try

  • Use Attio to filter-list-entries.
  • Use Attio to manage-list-entry.
  • Use Attio to get-list-entries.

Frequently asked questions

It connects Attio to MCP-compatible AI assistants such as Claude and Cursor, exposing 4 tools (filter-list-entries, manage-list-entry, get-list-entries, and more) that the assistant can call on your behalf. Instead of copying data back and forth by hand, the assistant works with Attio directly.