ZipTax Sales Tax Lookup

Setup

Set ZIPTAX_API_KEY env variable with your API key from https://platform.zip.tax (DEVELOP > API Keys). Free tier gives 100 calls/month. Never share your API key publicly.

Quick Start

Address Lookup (most accurate)

curl -s "https://api.zip-tax.com/request/v60?address=200+Spectrum+Center+Drive+Irvine+CA+92618" \
  -H "X-API-KEY: $ZIPTAX_API_KEY"