# MCP server: Your customer context, in every agent.

_https://www.opennous.cloud/features/mcp-server_

Connect Claude, ChatGPT, Grok, Claude Code or Codex with one URL. Every answer draws on your calls, emails and CRM, and cites the source behind each fact.

```
https://mcp.opennous.cloud/mcp
```

## Connect Claude, ChatGPT and Grok to your accounts

One remote server, signed in with your OpenNous account: Claude (Claude.ai and the desktop app), ChatGPT and Grok (as a custom connector), Claude Code (as a plugin or a server), Codex (CLI and IDE), and any MCP client such as n8n, local stdio or your own agent.

## Handles the hard parts by default

- **Same permissions as the person signed in.** The agent sees what its user can see. Private emails and calls stay with their owner.
- **A source on every answer.** Facts come with the call, email or record behind them.
- **No wrong-account answers.** When a name matches more than one person or company, the agent gets the candidates and asks.
- **Nothing goes to a customer.** The agent can read, take notes and update your ICP. It has no tool that emails or messages a customer.

## Works with the agents you already use

Setup guides: Claude (https://docs.opennous.cloud/mcp/connect/claude), ChatGPT (https://docs.opennous.cloud/mcp/connect/chatgpt), Grok (https://docs.opennous.cloud/mcp/connect/grok), Claude Code (https://docs.opennous.cloud/mcp/connect/claude-code), Codex (https://docs.opennous.cloud/mcp/connect/codex) and any MCP client (https://docs.opennous.cloud/mcp/connect/other).

## Frequently asked questions

**What is an MCP server?**
MCP, the Model Context Protocol, is the standard way for an AI app to use outside tools and data. The OpenNous MCP server gives your AI your customer accounts as thirteen tools it can call on its own.

**What are the main benefits of the OpenNous MCP server?**
Your AI answers from what customers actually said instead of from memory. It can prepare a meeting, find the deals that went quiet or draft a follow-up, and every fact comes with its source.

**Should I build my own MCP server or use OpenNous?**
Building your own means connecting each tool, resolving the same customer across all of them, handling sign-in and permissions, and keeping it running. The OpenNous MCP server does all of that, and works with the AI your team already uses.

**Which AI clients does it work with?**
Claude, ChatGPT, Grok, Claude Code and Codex, plus any client that supports remote MCP servers, such as n8n or your own agent.

**How do I connect?**
Paste https://mcp.opennous.cloud/mcp into your AI as a custom connector and sign in with your OpenNous account. The docs have a step-by-step guide for each client.

**What can my agent do with it?**
Read accounts, people and deals, get context for a task, ask questions across the pipeline, see what to work next, take notes, score leads and keep your GTM brain and ICP up to date.

**Can the agent email or message my customers?**
No. None of the tools sends anything to a customer. Drafting is up to your AI, and sending stays with you.

**How is access controlled?**
Each person signs in with their own OpenNous account, and the agent sees only what that person can see. Raw emails, calls and messages stay private to their owner.

**What is the difference between the MCP server and the API?**
They read the same accounts. The MCP server is for AI agents in a chat or an IDE. The REST API is for your own code. Every MCP tool maps to an API endpoint.

**How do I try the OpenNous MCP server?**
Sign up for free, connect your tools, then paste the server URL into your AI.