Attio

★ 15

from hmk

Connect your Attio workspace to large language models.

🔥🔥🔥✓ VerifiedAccount requiredNeeds API keys

#crm #git

⌁ labsco summary — our analysis, not the vendor's

What it is — An MCP server that connects the Attio AI-native CRM to MCP clients like Claude.

What you get —

Read company records straight from your Attio workspace — e.g. "pull up the record for Acme Corp"
Read company notes attached to a record
Write new company notes back into Attio
Runs over the Attio API via a bearer token

Requirements — An Attio account and an ATTIO_API_KEY bearer token, obtained from Attio's API Explorer or via OAuth.

Cost snapshot — The server is free and BSD-3-Clause licensed. It fronts your existing Attio subscription; Attio's own plan terms apply.

Setup effort — npx attio-mcp-server with the key in your Claude Desktop config; a dotenv-based dev setup is documented for contributors.

Our take — A reasonable starting point if you want an agent to reference CRM context, but the README's capability checklist is honest that it's early: only reading company records/notes and writing notes work today, while "other activities" remain unchecked — no people, deals, or task support yet.

Source: the project README — summarized 2026-07-08.

⌁ readme from github — mirrored (latest on GitHub ↗)

attio-mcp-server

This is an MCP server for Attio, the AI-native CRM. It allows mcp clients (like Claude) to connect to the Attio API.

Current Capabilities

reading company records
reading company notes
writing company notes
other activities

Development

Prerequisites

Before you begin, ensure you have the following installed:

Node.js (recommended v22 or higher)
npm
git
dotenv

Setting up Development Environment

To set up the development environment, follow these steps:

Fork the repository
- Click the "Fork" button in the top-right corner of this repository
- This creates your own copy of the repository under your Github acocunt

Clone Your Fork:

git clone https://github.com/YOUR_USERNAME/attio-mcp-server.git
cd attio-mcp-server

Add Upstream Remote

git remote add upstream https://github.com/hmk/attio-mcp-server.git

Copy the dotenv file
```
cp .env.template .env
```
Install dependencies:
```
npm install
```
Run watch to keep index.js updated:
```
npm run build:watch
```

Start the model context protocol development server:

dotenv npx @modelcontextprotocol/inspector node PATH_TO_YOUR_CLONED_REPO/dist/index.js

If the development server did not load the environment variable correctly, set the ATTIO_API_KEY on the left-hand side of the mcp inspector.

Copy & paste — that's it

{
  "mcpServers": {
    "attio": {
      "command": "npx",
      "args": ["attio-mcp-server"],
      "env": {
        "ATTIO_API_KEY": "YOUR_ATTIO_API_KEY"
      }
    }
  }
}

Before it works, you'll need: ATTIO_API_KEY

Usage

You will need:

ATTIO_API_KEY

This is expected to be a bearer token which means you can get one through the API Explorer on the right hand side or configure OAuth and retrieve one throught the Attio API.

Claude Desktop Configuration

{
  "mcpServers": {
    "attio": {
      "command": "npx",
      "args": ["attio-mcp-server"],
      "env": {
        "ATTIO_API_KEY": "YOUR_ATTIO_API_KEY"
      }
    }
  }
}