Kesslerio Attio MCP Server

by smithery Your server? Claim it

not responding

Kesslerio Attio MCP Server is listed as active in the registry but did not answer our last check. Last commit 16 Oct 2026.

Connect AI to your Attio CRM. Manage contacts, companies, deals, and sales pipelines. Create tasks…

Uptime history 91 days of history · worst day 0%

91 days agonow

0.0%

Uptime 24h

0 of 91 checks

—

Tools

hidden behind auth

415 ms

Response time

average over 24h

Stars

last commit 16 Oct 2026

What the code does

We read the source, 2 d ago · rules 995398eba69f

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

Builds a file path from a variable src/services/skill-generator/OutputWriterService.ts:45, src/services/skill-generator/SchemaFormatterService.ts:176, src/utils/config-migration.ts:154

      const fullPath = path.join(outputPath, relativePath);

Runs an external command src/utils/test-impact-analyzer.ts:51

      const diffOutput = execSync(

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 6 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add kesslerio-attio-mcp-server --transport http https://server.smithery.ai/@kesslerio/attio-mcp-server/mcp

Settings → Connectors → Add custom connector, then paste this address

https://server.smithery.ai/@kesslerio/attio-mcp-server/mcp

~/.codex/config.toml

[mcp_servers.kesslerio-attio-mcp-server]
url = "https://server.smithery.ai/@kesslerio/attio-mcp-server/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "kesslerio-attio-mcp-server": {
      "url": "https://server.smithery.ai/@kesslerio/attio-mcp-server/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "kesslerio-attio-mcp-server": {
      "type": "http",
      "url": "https://server.smithery.ai/@kesslerio/attio-mcp-server/mcp"
    }
  }
}

Endpoints

URL	Transport	State	Latency	Checked
https://server.smithery.ai/@kesslerio/attio-mcp-server/mcp	streamable-http	answering	415 ms	6 min ago

Alternatives to Kesslerio Attio MCP Server

same job, measured the same way

SmartContact CRM

by smartcontact

UK small-business CRM: companies, contacts, calls, tasks, deals and pipeline for your AI agent.

answering

Kommo CRM

by depper-ia

Manage Kommo CRM leads, contacts, pipelines, tasks, notes, tags and companies.

93 installs/wk local only

Attio MCP Server

by kesslerio

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

962 installs/wk local only

Ragently CRM

by ragently

Ragently CRM: companies, contacts, deals, tasks and notes for your AI assistant.

answering

Rdstation CRM MCP

by fernandoludvig

Manage RD Station CRM contacts, deals, tasks and notes, with pipeline health reports

51 installs/wk local only

LotsCRM

by lotscrm

The CRM that stays up to date: contacts, companies, deals, pipelines and follow-ups.

answering

Decern

by statwonk

MCP server for Decern CRM — contacts, deals, pipelines, tasks, and approvals.

98 installs/wk local only

Propstack MCP

by ashev87

Connect AI assistants to your Propstack real estate CRM (contacts, properties, deals).

118 installs/wk local only

Kesslerio Attio MCP Server — questions

Answers built from our own checks of this server.

Is Kesslerio Attio MCP Server working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 0 of 91 checks got a reply (0.0%), average response time 415 ms. The bar chart above shows every period we have measured.

The registry lists Kesslerio Attio MCP Server as active — why does it not respond?

The official MCP registry stores what the author submitted; it does not verify that the server still runs. We check the endpoint ourselves, and this one does not answer. Catalogues that copy the registry without checking will show it as working.

How do I connect Kesslerio Attio MCP Server?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Kesslerio Attio MCP Server need an API key?

No. Kesslerio Attio MCP Server completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. This is what we observed, not what the docs claim.

Is Kesslerio Attio MCP Server open source?

We cannot say either way: written in TypeScript, 69 stars on GitHub and 85 open issues, but we could not determine the licence, and without one the code is not open source by default.