Made a free JSON API for the boring dev tasks (email validation, DNS, SSL, JWT decode, etc) - tchncs

You know those tasks that aren’t complex enough to justify a dependency but annoying enough to keep reimplementing? - Validate an email address (syntax + MX records + disposable check) - Decode a JWT without installing a library - Look up DNS records - Check SSL certificate expiry - Generate a QR code - Convert between base64 and text - Explain a cron expression in plain English Built a simple REST API that handles all of these. Returns JSON, works with curl, no auth needed for 50 req/day. bash # Quick examples curl http://5.78.129.127/api/email/validate/[email protected] curl http://5.78.129.127/api/jwt/decode?token=eyJ... curl http://5.78.129.127/api/dns/lookup/github.com curl http://5.78.129.127/api/cron/explain?expr=0+9+*+*+1-5 28 endpoints total. Docs at http://5.78.129.127/api/ [http://5.78.129.127/api/] It’s not trying to compete with Postman or anything — it’s more like a swiss army knife for when you need a quick answer and don’t want to install anything.