> This page is for version v6.0 (default).
> For other versions, use one of these documentation indexes:
> - v6.0 (default): https://docs.zip.tax/v-6-0/llms.txt
> - v5.0: https://docs.zip.tax/v-5-0/llms.txt

> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.zip.tax/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.zip.tax/_mcp/server.

# Claude Skill

The Ziptax Claude Skill teaches Claude how to authenticate against the
Ziptax API, call the rate-lookup endpoints, and reason about the response
shape. Install it once and Claude can answer door-level sales tax
questions inside any Claude Desktop conversation.

## Install the Skill

### Download the SKILL.md file

The Skill lives in the public Ziptax GitHub repo. Grab the latest
`SKILL.md` from the repository below.

#### [ziptax-claude-skill on GitHub](https://github.com/ZipTax/ziptax-claude-skill/blob/main/SKILL.md)

### Install it in Claude Desktop

Follow Anthropic's official guide for adding Skills to Claude Desktop.

#### [Use Skills in Claude](https://support.claude.com/en/articles/12512180-use-skills-in-claude)

### (Optional) Pair it with the Ziptax MCP Server

For live tool access, pair the Skill with the hosted Ziptax MCP server.
A minimal `claude_desktop_config.json` looks like:

```json
{
  "mcpServers": {
    "ziptax": {
      "command": "npx",
      "args": [
        "mcp-remote",
        "https://mcp.zip-tax.com/",
        "--header",
        "X-API-KEY: <your-api-key>"
      ]
    }
  }
}
```

Replace `<your-api-key>` with your Ziptax API key. This configuration
uses the `mcp-remote` adapter and requires Node installed locally. See
the [MCP Server](mcp-server) page for a direct HTTP configuration that
doesn't require Node.

> **Info**
>
> Need an API key? Create a free account at
> [platform.zip.tax](https://platform.zip.tax).