> For the complete documentation index, see [llms.txt](https://docs.reach-book.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.reach-book.com/integrations/claude.md).

# Use Reach-book.com in Claude

Find a company's leadership contact or a named person's business email from inside Claude, and save them as prospects. Lookups use your workspace's email lookup credits.

## Connect in Claude

1. In Claude, open **Settings → Connectors** and choose **Add custom connector**.
2. Name it `Reach-book.com` and paste this URL: `https://reach-book.com/mcp/reachbook`
3. Keep the detected options (**Sign in now**, **Register automatically**) and click **Add**, then **Connect**.
4. Sign in to Reach-book.com and pick the workspace to connect.
5. Optionally tick **Also allow saving found contacts as prospects when I ask**, then click **Connect workspace**.

In a chat, turn on Reach-book.com from the tools menu before you ask.

## Connect in Claude Code

Run this in your terminal:

```bash
claude mcp add --transport http reachbook https://reach-book.com/mcp/reachbook
```

Then type `/mcp` in Claude Code and sign in.

## What you can ask

* "Find the CEO or founder of acme.com and their work email."
* "Find Jane Smith's business email at acme.com."
* "Show the results of that lookup."
* "Save the first contact as a prospect." (if you allowed saving)
* "Which Reach-book.com workspace am I connected to?"

Use a company website domain, not a personal email service such as gmail.com.

## Approving lookups

Every lookup that costs credits needs your approval in the browser. Claude gives you a link: open it and click **Approve lookup · N credits**. A named-person lookup uses 1 email lookup credit; a leadership lookup uses 2. Approval requests expire after 30 minutes.

Your account name and the workspace name are shared with Claude. The connection can't send email or read your inbox.

Manage or disconnect it any time from your user menu → **AI assistant connections**.

> **Note:** Developers can find the full tool reference in the [MCP server](https://docs.reach-book.com/developers/ai-assistants/mcp-server) documentation.