Ziptax Sales Tax API MCP Server

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answering

Ziptax Sales Tax API is answering right now. Last checked 9 min ago. It exposes 2 tools. Last commit 7 Aug 2026.

Real-time US and Canadian sales and use tax rates by address or geo coordinates.

Uptime history 51 days of history

51 days agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

586 ms

Response time

average over 24h

Stars

last commit 7 Aug 2026

Nothing serious here today

Today is the operative word: we check Ziptax Sales Tax API every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 9 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add ziptax --transport http https://mcp.zip-tax.com/sse

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "ziptax": {
      "url": "https://mcp.zip-tax.com/sse"
    }
  }
}

~/.codex/config.toml

[mcp_servers.ziptax]
url = "https://mcp.zip-tax.com/sse"

.cursor/mcp.json

{
  "mcpServers": {
    "ziptax": {
      "url": "https://mcp.zip-tax.com/sse"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "ziptax": {
      "url": "https://mcp.zip-tax.com/sse"
    }
  }
}

Available tools 2

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

account

get_account_metrics

Get account usage metrics and quota information for the authenticated ZipTax account. Returns current request counts, limits, and entitlements. Requires a valid ZipTax API key sent in the X-API-KEY header or Authorization header. Get a key at https://platform.zip.tax

lookup

lookup_tax_rate

Look up sales and use tax rates for a US or Canadian location. Provide a full street address for door-level accuracy, or a lat/lng pair for a geographic point lookup. Returns tax rates broken down by jurisdiction (state, county, city, district). Requires a valid ZipTax API key sent in the X-API-KEY header or Authorization header. Get a key at https://platform.zip.tax

Endpoints

URL	Transport	State	Latency	Checked
https://mcp.zip-tax.com/sse	sse	answering	595 ms	9 min ago

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Ziptax Sales Tax API — questions

Answers built from our own checks of this server.

What can Ziptax Sales Tax API do?

It exposes 2 tools, read directly from the server on our last check. Among them: get_account_metrics, lookup_tax_rate. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is Ziptax Sales Tax API working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 586 ms. The bar chart above shows every period we have measured.

How do I connect Ziptax Sales Tax API?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Ziptax Sales Tax API need an API key?

No. Ziptax Sales Tax API completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 2 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Ziptax Sales Tax API?

It answers our handshake in 586 ms on average, which is faster than 24% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.

Is Ziptax Sales Tax API open source?

We cannot say either way: written in Go and 0 stars on GitHub, but we could not determine the licence, and without one the code is not open source by default.