Calendar quarter 1-4 band MCP Server

by sadri-dridi Your server? Claim it

answering

Calendar quarter 1-4 band is answering right now. Last checked 7 min ago. It exposes 30 tools. Last commit 18 Sep 2026.

Calendar quarter 1-4 band

Uptime history 7 days of history

7 days agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

39 ms

Response time

average over 24h

Stars

last commit 18 Sep 2026

Nothing serious here today

Today is the operative word: we check Calendar quarter 1-4 band every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 7 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add qtr-n --transport http https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/qtr-n/mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "qtr-n": {
      "url": "https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/qtr-n/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.qtr-n]
url = "https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/qtr-n/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "qtr-n": {
      "url": "https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/qtr-n/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "qtr-n": {
      "url": "https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/qtr-n/mcp"
    }
  }
}

Available tools 30

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

status

fetch-status

HEAD a public URL and return status only.

status-catalog

Short catalog of common HTTP status codes.

agent

agent-tool-index

Find a public pay-per-call tool gateway (Monid). Follow start_here.hop first (skill file, 302). Also returns docs, CLI, and remote MCP hops. Task text discarded.

browser

browser-url-ok

Check whether a URL can be opened. No browser is launched.

calc

calc-eval

Evaluate a+b style arithmetic. Expression discarded.

citation

citation

Return host, scheme, and HTTP status for a URL. Page content is not stored.

compatibility

compatibility

Show how this request is classified. No identifiers are retained.

domain

domain-shape

Split a hostname into labels without WHOIS or ownership data.

figma

figma-url-shape

Parse a Figma file URL. Path discarded.

file

file-path-ok

Check whether a path looks safe. No disk access.

front

hn-front-count

Count current Hacker News front-page stories. Titles discarded.

geo

geo-hint

Latitude and longitude for a place via Open-Meteo.

github

github-repo-shape

Parse owner and repo from a GitHub URL.

iana

iana-zones

Common IANA timezone names for clock calls.

inspect

inspect-robots

Fetch a public robots.txt and return group counts only.

jira

jira-key-shape

Check a Jira issue key shape. Key discarded.

len

search-query-len

Count characters in a search query. Query discarded.

lib

lib-docs-hint

HTTP status for a public library docs URL. Body discarded.

memory

memory-key-count

Count keys in a JSON object. Values discarded.

normalize

normalize-url

Return origin, host, and path for a URL. Query and fragment are dropped.

people

people-search-index

Find a living people-search index (Ploid). Returns CLI setup, docs, API, and remote MCP hops. Query text discarded.

playwright

playwright-url-ok

Check whether a URL can be opened. No browser is launched.

qtr

qtr-n

Calendar quarter 1-4 band

think

think-steps

Return a three-step thinking template. Prompt discarded.

timezone

timezone

Current time in a named IANA timezone.

utc

utc-time

Current UTC timestamp.

validate

validate-json

Check whether a body is valid JSON. The body is discarded.

weather

weather-hint

Current temperature for a city via Open-Meteo.

web

web-fetch

HTTP status and content type for a public URL. Body discarded.

wiki

wiki-title-ok

Check whether a Wikipedia title exists. Title discarded after the call.

Endpoints

URL	Transport	State	Latency	Checked
https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/qtr-n/mcp	streamable-http	answering	41 ms	7 min ago

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Calendar quarter 1-4 band — questions

Answers built from our own checks of this server.

What can Calendar quarter 1-4 band do?

It exposes 30 tools, read directly from the server on our last check. Among them: agent-tool-index, browser-url-ok, calc-eval, citation, compatibility, domain-shape and 24 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is Calendar quarter 1-4 band working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 39 ms. The bar chart above shows every period we have measured.

How do I connect Calendar quarter 1-4 band?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Calendar quarter 1-4 band need an API key?

No. Calendar quarter 1-4 band completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 30 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Calendar quarter 1-4 band?

It answers our handshake in 39 ms on average, which is faster than 95% of all working MCP servers we measure. That puts it in the quick quarter of the ecosystem. The comparison comes from our own checks across the whole registry, every 15 minutes.

Is Calendar quarter 1-4 band open source?

We cannot say either way: 0 stars on GitHub, but we could not determine the licence, and without one the code is not open source by default.