"MCP tools for improving UI development" matching MCP connectors:

African bank & SWIFT codes, NUBAN resolution, mobile networks, holidays and ISO 4217 currencies.

13 deterministic agent utilities: timezone, cron, RRULE, currency, regex, diff, hashing & more.

Check an MCP endpoint actually resolves: liveness, live tool list, schema drift. Free.

Independent CLI facts, source links, and fixed summaries for Claude Code, Codex, and Grok Build.

Unified jobs search over official feeds + ATS boards (USAJOBS, Adzuna, Muse, Greenhouse, Lever...)