Ziptax Sales Tax API is answering right now. Last checked 1 min ago. It exposes 2 tools. Last commit 7 Oct 2026.
Real-time US and Canadian sales and use tax rates by address or geo coordinates.
What changed 6
Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 7 October 2026. No other catalogue keeps this.
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 1 min ago.
claude mcp add ziptax --transport sse https://mcp.zip-tax.com/ssehttps://mcp.zip-tax.com/sse[mcp_servers.ziptax]
url = "https://mcp.zip-tax.com/sse"{
"mcpServers": {
"ziptax": {
"url": "https://mcp.zip-tax.com/sse"
}
}
}{
"servers": {
"ziptax": {
"type": "sse",
"url": "https://mcp.zip-tax.com/sse"
}
}
}This server publishes 1 more address. The block above uses the one we reach during checks; the full list is under Endpoints below, and the author may intend a particular one for your client.
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.
get_account_metrics
lookup_tax_rate
Endpoints
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://mcp.zip-tax.com/sse | sse | answering | 546 ms | 1 min ago |
| https://mcp.zip-tax.com/ | streamable-http | answering | 523 ms | 1 min ago |
Alternatives to Ziptax Sales Tax API
same job, measured the same wayCensus Bureau geocoding API: address to coordinates and census geography.
US Census geocoder: addresses to coordinates, reverse geocoding and census geography lookup.
Real-time water temperature and tides for 8,000+ locations, by name or lat/long coordinates.
Convert addresses to coordinates and reverse-geocode locations worldwide
MCP server for Russian Rosreestr cadastral data: lookup by number, address or coordinates.
Geocode addresses, autocomplete searches and reverse geocode coordinates on open data. Free tier.
Resolve Canadian postal codes to city, province and coordinates.
Mongolian eGazar land parcels by parcel id, Cyrillic address or coordinates, with land use.
Ziptax Sales Tax API — questions
Answers built from our own checks of this server.