ziptax
MCP serverDev toolsZipTax gives your AI access to real-time sales and use tax rates for the United States and Canada. Once added, your AI can find the correct rate for a specific address or a pair of geo coordinates, so you get accurate tax answers without digging through rate tables yourself.
Use ziptax in Claude, ChatGPT or Ahel Desktop
Free. Sign in, add ziptax and connect your AI. About a minute.
Also: Claude Code · Cursor · Codex
Then ask your AI: use ziptax to get account metrics
Needs your own API account. Keys stay in your vault.
Details
Available today. Use it from your connected AI after setup.
After adding it, ask your AI for the sales tax rate at a specific address or set of coordinates. Sample code is available in the ziptax repository on GitHub.
What your AI can do with it
- Look up current US sales and use tax rates for any address
- Look up current Canadian sales and use tax rates for any address
- Find tax rates using geo coordinates when you do not have a full address
- Get rates in real time instead of relying on outdated tables
Install ziptax
The server’s own address, for the clients that take one directly. Or connect Ahel once and every client you use reads it from one address, with the account kept on Ahel rather than in each client’s config.
Claude Code
claude mcp add --transport http --scope user ziptax 'https://mcp.zip-tax.com/'Run it once in your project, then open /mcp to approve any sign-in the server asks for.
Claude Desktop
https://mcp.zip-tax.com/Add a custom connector in Settings, paste this address, and approve the sign-in.
Cursor
cursor://anysphere.cursor-deeplink/mcp/install?name=ziptax&config=eyJ1cmwiOiJodHRwczovL21jcC56aXAtdGF4LmNvbS8ifQ==Open the link and Cursor adds the server at that address.
ChatGPT
https://mcp.zip-tax.com/In Settings, enable Developer mode, create an MCP app, and paste this address. Your plan and workspace must allow custom apps.
Codex
codex mcp add ziptax --url 'https://mcp.zip-tax.com/'Run it once, then sign in with codex mcp login ziptax if the server asks for an account.
Tools it offers (2)
What this server listed when Ahel dialed its public endpoint in Oct 2026, with no key and no account of yours. The names are the server’s own.
get_account_metricslookup_tax_rate
Signals
- Last commit
- Oct 2026
Advanced
- Delivery
- ziptax MCP server → your Ahel connector (mcp.ahel.ai) → your AI.
- Item type
- mcp-server
- Key
tax-zip-ziptax- Source
- github.com/ziptax/ziptax-mcp
- Hosted endpoint
https://mcp.zip-tax.com/