# Try ZeroWidth in five minutes

Run ZeroWidth on your own computer, connect Claude Code, and see what ZeroWidth would read, without reading or sending anything.

You need Node 24 or later. Each command runs ZeroWidth with npx, so there is nothing to install first.

## Make a record and check your setup

`init` writes a settings file, zerowidth.json, for a record kept in team.db. `doctor` checks your setup and says what to fix.

```Terminal
npx @zerowidth/cli init --db team.db
npx @zerowidth/cli doctor
```

## Start ZeroWidth

ZeroWidth starts on this computer and prints the console's address.

```Terminal
npx @zerowidth/cli serve --db team.db
```

## Connect Claude Code

In a second terminal, add ZeroWidth to Claude Code.

```Terminal
claude mcp add --transport http zerowidth http://127.0.0.1:4380/mcp
```

## See what ZeroWidth would read

The import is a dry run: ZeroWidth counts what would be read from your Claude Code sessions and shows the cost. Nothing is read or sent.

```Terminal
npx @zerowidth/cli import ~/.claude/projects
```

When you're ready, add `--run --cap 5` to read, with a spending limit of $5. Reading needs an OpenRouter key, or your own AI model.