MCP.Market

CalKit MCP server

online · 100% uptime
by OlsOls4·io.github.OlsOls4/calkit·v1.1.0
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Public holidays for 150+ countries, business-day maths and timezone lookup

B83/100grade B
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Safety scan
B83/100

full report

Adoption
Growing

0 stars

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If you have run it, two minutes of your experience saves the next person an afternoon.

CalKit tools

Tool list not cached yet. `describe` through the gateway fetches it live.

Public scan report

scanner v0.1.10 · 2026-10-15 · same rubric, same numbers if you re-run it

no findings
  • –Code scanremote-only server, no package to scann/a
  • Live reliabilityremote reachable in 249ms (auth required)20/20
  • –Tool poisoningtools not inspected (endpoint requires auth); not countedn/a
  • Auth qualityauth enforced (unknown)9/15
  • Maintenancelast push 0 days ago15/15
  • Maintainer identityregistry namespace matches repository owner6/10
Overall 83/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How CalKit compares

Against every graded MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
83/100
higher than 65% of 48,255 servers
Uptime
100%
of our recent checks; the typical remote server answers 100%
Response time
146 ms
faster than 74% of 30,031 servers

Install CalKit in Claude Code, Cursor or VS Code

claude mcp add --transport http calkit https://calkit-public-holidays-business-days-timezones.p.rapidapi.com/mcp
Add to Cursor

What the publisher says

From the CalKit repository's README, as published. We do not edit it. Read it on GitHub

WebKit API family

One Cloud Run service (auto-deployed from main) hosting four APIs, each listed separately on RapidAPI:

  • WebKit (root): /email/validate, /url/preview, /url/extract
  • DomainKit (/domain): /dns, /ssl, /whois, /scan
  • QRKit (/qrkit): /qr, /qr/wifi, /qr/vcard, /barcode
  • TextKit (/text): /language, /sentiment, /readability, /keywords, /profanity, /summarize, /slugify, /stats, /analyze

Nothing above is checked by us. What we check is on the safety report.

CalKit: common questions

Is CalKit MCP server safe?
Mostly: it is graded B (83/100). Read the CalKit safety report
How do I install CalKit?
It runs remotely at calkit-public-holidays-business-days-timezones.p.rapidapi.com. Add it to Claude Code, Cursor, VS Code or Claude Desktop with the snippets above, or call it through the mcp.market gateway without installing anything.
Does CalKit need an API key?
Yes. The registry entry asks for X-RapidAPI-Key.
Is CalKit maintained?
The last commit was 20 days ago (2026-10-14). The latest release is v1.1.0.
Is CalKit up?
100% of our last 28 checks got an answer. We check remote servers about four times a day.
How does CalKit compare with other MCP servers?
safety score 83/100 (higher than 65% of 48,255 servers); uptime 100% (of our recent checks; the typical remote server answers 100%); response time 146 ms (faster than 74% of 30,031 servers). Full comparison.

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