Chrono Mcp

io.github.nexus-api-lab/chrono-mcp

Reach for this when you need Claude to do reliable time math without hallucinating dates or botching timezone conversions. It exposes six tools: current_time, convert_time, add_business_days, business_days_between, next_cron_runs, and duration_between. The business day calculations are great for scheduling workflows or SLA tracking, while the cron interpreter helps you explain or validate cron expressions without spinning up a container. Runs on Cloudflare Workers over streamable HTTP, so no local setup. Free tier gives you 500 tool calls per IP per UTC day, which should cover most prototyping and light production use.

last updated

Jun 10, 2026

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