"Cal.com" matching MCP connectors:

Step-by-step solver for linear/quadratic equations in one variable, signs and ± always right.

ISO 8601 week numbers: date to week, week to date, weeks-per-year.

Validate JSON, YAML, XML and CSV with exact line/column errors and silent-corruption warnings.

Exploit-DB feed: new public exploits & PoCs — RCE, webapps, DoS, remote/local. Weaponized CVE intel.