Attio MCP Server: 48 Tools, Setup and Limits (2026)

Facts checked October 30, 2026. Every Attio fact below comes from Attio's MCP documentation, read on October 30, 2026. We did not connect an Attio workspace for this review.

Is there an official Attio MCP server?

Yes. Attio documents an official, hosted MCP server at https://mcp.attio.com/mcp. It names Claude (desktop and claude.ai), ChatGPT and Cursor as clients, and says any MCP client that supports remote servers can connect. You need an active Attio workspace and an MCP client. You sign in with your Attio account, and no API key is needed.

How do you connect Attio to Claude, ChatGPT or Cursor?

Claude (desktop or claude.ai):

1. Open Settings, then Connectors.
2. Click Browse connectors and search for Attio.
3. Click Install Attio and sign in with your Attio account.

ChatGPT:

1. Open Apps and search for Attio.
2. Click Connect Attio and sign in.

Cursor and other MCP clients: add https://mcp.attio.com/mcp as a remote MCP server, then complete the OAuth sign-in when the client prompts you. In Cursor, that is one entry in mcp.json:

{
  "mcpServers": {
    "attio": {
      "url": "https://mcp.attio.com/mcp"
    }
  }
}

The server acts as you: it follows your Attio permissions and stays inside your workspace. You can revoke its sessions from your Attio account settings.

What can the Attio MCP server do?

Attio lists 48 tools in 11 groups:

Three things stand out for a sales team. Records can be upserted and merged, so an assistant can merge duplicates and load new people with an upsert. The meeting, call and email tools search and read, including semantic search across call recordings and emails. And run-basic-report and query-particle-sql answer pipeline questions with numbers.

Is the Attio MCP server free?

Attio's MCP docs list no separate price or plan requirement for the server. The one plan note is that query-particle-sql is not available on every billing plan. Treat MCP as part of your Attio subscription and check SQL access on your plan.

What are Attio's MCP rate limits?

Attio publishes per-workspace limits by tool tier. Tools in the same tier share one limit:

The read and write limits match Attio's REST API. An agent that hits one needs fewer parallel calls or more time between them.

Is the Attio MCP server safe to give an AI agent?

Attio's design is careful. Read tools run without asking, while every write tool asks you to confirm before it creates or changes data. The agent never sees more than you can, because it signs in as you, and Attio says every operation is logged and auditable. The risk to plan for is volume: with merge and upsert available, review the first runs of any agent that writes, and keep merges for records you have checked.

Who is the Attio MCP server good for?

It suits teams that run their GTM on Attio and want an assistant that does real CRM work: clean up records, merge duplicates, build lists, log notes and tasks, and answer questions with a report or SQL. It is especially strong for founders and RevOps people who already think in Attio's objects and lists.

A community server, kesslerio/attio-mcp-server on GitHub (Apache 2.0), also exists for teams that want to self-host. Attio's own server is the simpler start, because it needs no hosting and no API key.

Where does Clu's MCP server fit next to Attio?

Disclosure. We make Clu, and this entry is our own description of our product.

Attio's server works on the records in your CRM. Clu's MCP server finds and completes the ones that are missing: people and company search across 1B+ profiles, and verified work emails and phone numbers from a waterfall of 25+ data providers. Search is free, a verified email costs 1 credit and a phone number 10, nothing is charged on a miss, and Claude shows a cost quote before any paid enrichment.

Connected in the same Claude chat, the two make a complete loop: ask Clu for the heads of RevOps at your target accounts with verified emails, then ask Attio to upsert them as people and add them to a list. Clu's MCP server is included from Starter at $49 per seat a month and in the 14-day Pro trial. Setup is on the MCP product page.

For other CRMs and sales tools, see our reviews of the Salesforce MCP server, the HubSpot MCP server, the Pipedrive MCP server, the Gong MCP server and the ZoomInfo MCP server, and the list of the best MCP servers for sales and GTM.

See pricing

Frequently asked questions

Can Claude delete records in Attio?

Not records. Attio's tool list has no record delete. The only delete tools are delete-task and delete-comment, and every write asks you to confirm.

Does the Attio MCP server read call recordings?

Yes. search-meetings, search-call-recordings-by-metadata, semantic-search-call-recordings and get-call-recording find and read your meetings and call recordings, and get-email-content reads emails.

How do I stop an AI client from using my Attio account?

Revoke its session from your Attio account settings. Because the server signs in as you over OAuth, there is no API key to rotate.

Sources

• Attio, MCP overview, read October 30, 2026
• kesslerio, attio-mcp-server on GitHub, read October 30, 2026