Days in current UTC year is answering right now. Last checked 12 min ago. It exposes 30 tools. Last commit 18 Sep 2026.
Days in current UTC year
Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 18 September 2026. No other catalogue keeps this.
Today is the operative word: we check Days in current UTC year every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 12 min ago.
claude mcp add year-len --transport http https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/year-len/mcp
{
"mcpServers": {
"year-len": {
"url": "https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/year-len/mcp"
}
}
}
[mcp_servers.year-len]
url = "https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/year-len/mcp"
{
"mcpServers": {
"year-len": {
"url": "https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/year-len/mcp"
}
}
}
{
"mcpServers": {
"year-len": {
"url": "https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/year-len/mcp"
}
}
}
Read directly from the server with tools/list, grouped by what they act on.
If a tool disappears, we record the date.
fetch-status
status-catalog
agent-tool-index
browser-url-ok
calc-eval
citation
compatibility
domain-shape
figma-url-shape
file-path-ok
hn-front-count
geo-hint
github-repo-shape
iana-zones
inspect-robots
jira-key-shape
search-query-len
lib-docs-hint
memory-key-count
normalize-url
people-search-index
playwright-url-ok
think-steps
timezone
utc-time
validate-json
weather-hint
web-fetch
wiki-title-ok
year-len
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/year-len/mcp | streamable-http | answering | 35 ms | 12 min ago |
Days in current UTC month
Days in the current UTC month
UTC end of the current year
UTC last day of the current half-year
UTC start of the current year
Days to pad current UTC month to 31
UTC day of year
Whether the current UTC year is a leap year
Answers built from our own checks of this server.