Attio MCP Server

Name: Attio MCP Server
Author: kesslerio

by kesslerioversion 1.7.0i★ –iRuns on your computer

Registry nameio.github.kesslerio/attio-mcp-server

Install

Overview

Description from the maker (original English)

AI-powered Attio CRM access. Manage contacts, companies, deals, tasks, notes and workflows.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs on your computer
Transport: stdio
Category: Marketing & social media
You need to fill in: ATTIO_API_KEY

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on your computer with your user’s permissions (files, network, apps).
You fill in yourself: ATTIO_API_KEY, ATTIO_WORKSPACE_ID, ATTIO_MCP_TOOL_MODE, MCP_LOG_LEVEL

Values marked secret are keys to your account. Never share them or paste them into a chat.

You need

npmNode.js installed (for the npx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "attio": {
      "command": "npx",
      "args": [
        "-y",
        "attio-mcp"
      ],
      "env": {
        "ATTIO_API_KEY": "your-value",
        "ATTIO_WORKSPACE_ID": "your-value",
        "ATTIO_MCP_TOOL_MODE": "your-value",
        "MCP_LOG_LEVEL": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add attio --env ATTIO_API_KEY=your-value --env ATTIO_WORKSPACE_ID=your-value --env ATTIO_MCP_TOOL_MODE=your-value --env MCP_LOG_LEVEL=your-value -- npx -y attio-mcp

Fill in the empty values before running it.

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "attio": {
      "command": "npx",
      "args": [
        "-y",
        "attio-mcp"
      ],
      "env": {
        "ATTIO_API_KEY": "your-value",
        "ATTIO_WORKSPACE_ID": "your-value",
        "ATTIO_MCP_TOOL_MODE": "your-value",
        "MCP_LOG_LEVEL": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "attio": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "attio-mcp"
      ],
      "env": {
        "ATTIO_API_KEY": "your-value",
        "ATTIO_WORKSPACE_ID": "your-value",
        "ATTIO_MCP_TOOL_MODE": "your-value",
        "MCP_LOG_LEVEL": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

Your choice stays on this device in a cookie; no account needed.

Values you fill in

ATTIO_API_KEY secret required env
Your Attio API key (required for all tools except health-check)
ATTIO_WORKSPACE_ID env
Optional Attio workspace ID for workspace-specific operations
ATTIO_MCP_TOOL_MODE env
Tool mode: 'full' (all tools) or 'search' (search tools only). Default: 'full'
MCP_LOG_LEVEL env
Logging level: 'DEBUG', 'INFO', 'WARN', 'ERROR'. Default: 'INFO'

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account kesslerio, which owns the repo
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
– Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
– Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
… Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Marketing & social mediai

More stars than 0% of the other 2982 servers in this category
Published to the registry more recently than 28% of the other 2982 servers in this category
Basic checks equal to or better than 100% of the other 2982 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Attio MCP Server safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

You need to fill in: ATTIO_API_KEY

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.7.0) reached the registry 2 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js on your computer.

What can I use instead?

In the same category: MCP YouTube Transcript, Google Analytics MCP, BibiGPT YouTube Video Summarizer

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

MCP YouTube Transcript

by jkawamoto

An MCP server retrieving transcripts of YouTube videos

Runs on your computer★ 495MITUpdated 10 days ago

Install

Google Analytics MCP

by surendranb

GA4 MCP server for AI agents: schema discovery, server-side aggregation, analysis-ready defaults.

Runs on your computer★ 244MITUpdated 10 days ago

Install

BibiGPT YouTube Video Summarizer

by JimmyLv

AI video summarizer: summarize and transcribe YouTube, Bilibili, TikTok and podcast videos.

Runs in the cloud★ 137MITUpdated 10 days ago

Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

Attio MCP Server

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 is Attio MCP Server?

Transform your CRM workflows with AI-powered automation. Instead of clicking through multiple screens, simply ask Claude or ChatGPT to find prospects, update records, manage pipelines, and analyze your data using natural language commands.

🎉 v1.0.0 Milestone: Complete Attio CRM surface coverage with full ChatGPT Developer Mode integration.

"Find all AI companies with 50+ employees that we haven't contacted in 30 days and add them to our Q1 outreach list"

🚀 ChatGPT Developer Mode Integration

⚠️ Smithery Temporarily Unavailable: Smithery has changed their deployment model to require external hosting. We're working on Cloudflare Worker hosting for ChatGPT users. In the meantime, use Tier 4 (Cloudflare Worker) for ChatGPT/remote access.

ChatGPT Pro/Plus users can access the Attio toolset through natural language using a self-hosted Cloudflare Worker:

🔐 Built-in Approval Flows: MCP safety annotations auto-approve read operations, request approval for writes
🌐 OAuth Integration: Self-hosted OAuth via Cloudflare Worker deployment
💬 Natural Language CRM: Manage your entire Attio workspace through conversational AI
📖 Setup Guide: See ChatGPT Developer Mode docs and Cloudflare Worker Guide

✨ Core Features & Implementation Status

🎯 Universal Tools Architecture (19 Universal Operations)

Focused Tool Surface: Consolidated 40+ resource-specific tools into universal operations, then added scoped high-frequency write tools for safer company and deal updates.

High Performance: 89.7% speed improvement with 227KB memory reduction (PR #483)
Enterprise Quality: 97.15/100 production readiness score with zero breaking changes
Clean Architecture: Complete production-test separation with mock factory pattern
Structured Results: Every default tool advertises a validated output schema; see the result contract for list, member, diagnostic, and connector outputs, and the preceding sections for universal outputs and prose opt-out
Scoped Tool Policy: Add scoped default tools only when the workflow is frequent, a generic write can mutate the wrong object class, and the scoped tool removes a model decision instead of merely renaming a universal call

📊 Feature Implementation Status

✅ Complete CRM Surface Coverage

Companies: Search, Create, Update, Delete, Advanced Search, Relationship Search
People: Search, Create, Update, Delete, Advanced Search, Relationship Search
Deals: Full CRUD operations with intelligent field mapping and stage validation
Tasks: Create, Update, Delete, Search with multi-assignee support
Lists: Full CRUD operations, filtering, advanced filtering, entry management
Notes: Create and list operations for all record types
Records: Universal CRUD operations across all resource types
Batch Operations: Create, Update, Delete with chunking and error handling
Content Search: See the supported-input matrix for resource-specific limits
Relationship Navigation: Bidirectional company↔person↔deal relationships
Advanced Filtering: Sophisticated query capabilities with intelligent field mapping

📊 Company Management

Universal Search: Find companies with records_search and records_search_advanced
Scoped Writes: Create and update companies with companies_create and companies_update
Full CRUD: Create, read, update, and delete with universal record operations when a scoped tool is not available
Relationship Discovery: Find companies through records_search_by_relationship
Batch Operations: Process hundreds of companies with records_batch
Detailed Information: Get contact, business, and social info with records_get_info

👥 People Management

Universal Contact Search: Find people by any criteria using universal search tools
Relationship Tracking: Link people to companies with records_search_by_relationship
Activity Timeline: Retrieve interaction metadata with records_get_interactions
Advanced Filtering: Multi-attribute search with universal filtering
Bulk Operations: Efficiently manage contacts with universal batch operations

📋 Lists & Pipeline Management (6 Tools + 8 Deprecated)

Active Tools: 4 consolidated tools with auto-mode detection (Migration Guide)
list_entries_filter - Unified filtering with 4 modes
list_entries_manage - Unified entry management with 3 modes
list_entries_list - Retrieve list entries
records_get_list_memberships - Find record's list memberships
List Configuration Tools (dedicated; universal records_create/records_update reject resource_type: "lists"):
lists_create - Create lists with first-class access controls: workspace_access (full-access \| read-and-write \| read-only \| "null" for a private list) and workspace_member_access (per-member grants). Omitting both access fields defaults the new list to workspace-wide full access; new lists must keep at least one full-access grantee.
lists_update_configuration - Update name, custom fields, and the same access controls. Member-level grants can raise access above the workspace default but never lower it below workspace_access.
Errors distinguish plan_gating (workspace plan does not support the requested access configuration) from permission_failure (token/workspace permissions) and unsupported_input (malformed access config), each with a suggested next step.
Pipeline Operations: Move deals through sales stages
Smart Segmentation: Create and manage targeted contact lists
Advanced Filtering: Complex multi-condition filtering with AND/OR logic
Entry Management: Add, remove, and update list memberships
Deal Tracking: Monitor opportunities and revenue pipeline
Deal Defaults: Configurable default stage, owner, and currency for streamlined deal creation
Scoped Deal Writes: Create and update deals with deals_create and deals_update

✅ Task Management

Universal Task Operations: Create, update, and manage tasks with universal tools
Record Linking: Associate tasks with any record type using resource_type parameter
Progress Tracking: Monitor completion with universal search and filtering
Team Coordination: Streamline follow-ups with consistent universal operations

🔧 Advanced Capabilities

Batch Processing: Handle bulk operations with error tracking
Enhanced Filtering: Text, numeric, date, boolean, and relationship filters with timeframe search (Issue #475)
Data Export: JSON serialization for integrations
Real-time Updates: Live data synchronization with Attio

🧠 Claude Skills

Supercharge Claude's Attio knowledge with pre-built skills that prevent common errors and teach best practices.

Skill	Purpose	Setup
attio-mcp-usage	Error prevention + universal workflow patterns	Bundled - just use it
attio-workspace-schema	YOUR workspace's exact field names and options	`npx attio-discover generate-skill --all --zip`
attio-skill-generator	Create custom workflow skills (advanced)	Python + prompting

Quick Start (solves "wrong field name" errors):

npx attio-discover generate-skill --all --zip

Import ZIP into Claude Desktop: Settings > Skills > Install Skill

See Skills Documentation for complete setup and usage guides.

💬 Pre-Built Prompts (10 Prompts)

Intelligent shortcuts that help Claude work faster with your CRM data:

Search & Find (5): people_search, company_search, deal_search, meeting_prep, pipeline_health
Take Actions (4): log_activity, create_task, advance_deal, add_to_list with dry-run safety
Research & Qualify (1): qualify_lead with automated web research and BANT/CHAMP frameworks
Token-efficient: 300-700 tokens per prompt with consistent formatting
Discoverable: Claude automatically suggests relevant prompts for your tasks

See Using Out-of-the-Box Prompts for detailed documentation and examples.

🎯 Using Out-of-the-Box Prompts

NEW: 10 pre-built MCP prompts for common Sales workflows. No setup required—just use them!

Available Prompts

Prompt	Description	Key Arguments	Example
`people_search.v1`	Find people by title, company, territory	`query`, `limit`, `format`	Find AE in fintech, SF
`company_search.v1`	Query companies by domain, segment, plan	`query`, `limit`, `format`	Find SaaS companies >100 employees
`deal_search.v1`	Filter deals by owner, stage, value, close date	`query`, `limit`, `format`	Find deals >$50k closing Q1
`log_activity.v1`	Log calls/meetings/emails to records	`target`, `type`, `summary`, `dry_run`	Log call with Nina at Acme
`create_task.v1`	Create tasks with natural language due dates	`title`, `content`, `due_date`, `dry_run`	Create task: Follow up tomorrow
`advance_deal.v1`	Move deal to target stage with next action	`deal`, `target_stage`, `create_task`, `dry_run`	Advance deal to "Proposal Sent"
`add_to_list.v1`	Add records to a List by name or ID	`records`, `list`, `dry_run`	Add 5 companies to Q1 Outreach
`qualify_lead.v1`	Research lead with web + BANT/CHAMP scoring	`target`, `framework`, `limit_web`, `dry_run`	Qualify Acme Corp with BANT

| meeting_prep.v1 | 360° prep: notes, tasks, deals, agenda | target, format, verbosity

Only the beginning is shown; read the rest in the repo

Attio MCP Server

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

Values you fill in

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Marketing & social mediai

Common questions

Alternatives

MCP YouTube Transcript

Google Analytics MCP

BibiGPT YouTube Video Summarizer

README from the maker

Attio MCP Server

🎯 What is Attio MCP Server?

🚀 ChatGPT Developer Mode Integration

✨ Core Features & Implementation Status

🎯 Universal Tools Architecture (19 Universal Operations)

📊 Feature Implementation Status

✅ Complete CRM Surface Coverage

📊 Company Management

👥 People Management

📋 Lists & Pipeline Management (6 Tools + 8 Deprecated)

✅ Task Management

🔧 Advanced Capabilities

🧠 Claude Skills

Import ZIP into Claude Desktop: Settings > Skills > Install Skill

💬 Pre-Built Prompts (10 Prompts)

🎯 Using Out-of-the-Box Prompts

Available Prompts