An agent can connect on its own if it already holds X_API_KEY, X_API_KEY.Remote endpoint behind a static API key or header. The registry never sees the value; the agent fills the placeholder.
Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.
Endpoints
remote
auth
reachable
uptime 30d
p50
protocol
last ok
https://mcp.zip-tax.com/streamable-http
api_key ${X_API_KEY}
yes
100%
269 ms
2025-11-25
2026-10-19
Tools (2)
get_account_metricsread-only
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_tax_rateread-only
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