XLSX Inspector…
Reads an .xlsx and returns sheet names, dimensions, formulas, defined
names, and external links — without Excel and without uploading to a third party.
curl -F file=@book.xlsx https://api.lifestep.io/inspect
Email Validator…
Syntax, MX records, disposable-domain detection, and typo suggestions
for common providers. Validation only — it never sends mail to the address.
curl 'https://email.lifestep.io/validate?email=a@b.com'
QR Code API…
One GET returns an SVG or PNG QR code. Size, margin, and error
correction are query parameters, so it drops straight into an <img> tag.
curl 'https://qr.lifestep.io/qr?data=hello&format=svg'
Domain Info…
A, MX, NS and TXT records, SPF and DMARC policy parsing, and TLS
certificate expiry for any domain — one request instead of four dig invocations.
curl 'https://dns.lifestep.io/domain?name=example.com'