Max UUID constant is answering right now. Last checked 12 min ago. It exposes 31 tools. Last commit 23 Sep 2026.
Max UUID constant
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 Max UUID constant 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 uuid-max --transport http https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/uuid-max/mcp
https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/uuid-max/mcp
[mcp_servers.uuid-max]
url = "https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/uuid-max/mcp"
{
"mcpServers": {
"uuid-max": {
"url": "https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/uuid-max/mcp"
}
}
}
{
"servers": {
"uuid-max": {
"type": "http",
"url": "https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/uuid-max/mcp"
}
}
}
Read directly from the server with tools/list, grouped by what they act on.
If a tool disappears, we record the date.
agent-ads-index
agent-tool-index
fetch-status
status-catalog
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
uuid-max
validate-json
weather-hint
web-fetch
wiki-title-ok
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/uuid-max/mcp | streamable-http | answering | 70 ms | 12 min ago |
Nil UUID constant
UUID max (all-ones) shape
Mint a random UUID v4.
UUID shape check
USPS state code MA.
Cache-Control max-age shape
Random UUID v4
Nil UUID shape
Answers built from our own checks of this server.