Claude Skill

Add Ziptax as a Skill inside Claude Desktop

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

Install it in Claude Desktop

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

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:

1 {
2   "mcpServers": {
3     "ziptax": {
4       "command": "npx",
5       "args": [
6         "mcp-remote",
7         "https://mcp.zip-tax.com/?key=<your-api-key>"
8       ]
9     }
10   }
11 }

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 page for a direct HTTP configuration that doesn’t require Node.

Need an API key? Create a free account at platform.zip.tax.

1	{
2	"mcpServers": {
3	"ziptax": {
4	"command": "npx",
5	"args": [
6	"mcp-remote",
7	"https://mcp.zip-tax.com/?key=<your-api-key>"
8	]
9	}
10	}
11	}