7 Services from dev-utils.x402tookit.com

Builds a properly escaped and folded RFC 5545 .ics calendar event file from title, start, end, location, and description fields.

Retrieves Certificate Transparency log data for a domain, including recent certs, certificate issuers, and all subdomains observed via Cert Spotter.

Parses a User-Agent string to extract browser, OS, device class (desktop/mobile/tablet/tv/bot), and bot detection flag.

Runs a JavaScript regex pattern against text and returns all matches, capture groups, and character indexes, with catastrophic-backtracking protection.

Computes the next N scheduled run times for a 5-field cron expression at a given UTC offset, applying the standard day-of-month/day-of-week OR rule

Decodes a JWT's header and payload without verifying the signature, and flags security issues like alg:none, expiry, not-before violations, and missing claims.

Checks whether a password has appeared in known data breaches using k-anonymity: you send only the first 5 hex chars of its SHA-1 hash, and the service returns a breach count and verdict.