SemVer numbers only. Connect the official SemVer numbers only MCP server to Claude, ChatGPT, or Cursor through gate — one gateway URL, no config files, security-checked.
Free to start · No credit card · No hosting needed
Pick your client. Copy, paste, done — or let gate handle sign-ins and policies for you.
claude mcp add --transport http semver-numbers-only https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/semver-parse/mcpRun in your terminal, then restart Claude Code.
SemVer numbers only · https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/semver-parse/mcp
Real prompts you can type the moment it's connected — no setup, no docs to read.
“Use “semver-parse”: SemVer numbers only.”
“Use “utc-time”: Current UTC timestamp.”
“Use “timezone”: Current time in a named IANA timezone.”
“Use “validate-json”: Check whether a body is valid JSON. The body is discarded.”
Every server in the gate directory has to pass the same four checks before your AI can touch it. Here's how SemVer numbers only holds up.
Operated by SemVer numbers only (workers.dev) at its documented MCP endpoint — not a third-party mirror or community re-host.
This server only exposes public data — no account and no credentials are involved when you connect.
gate checks every tool for prompt injection, hidden instructions, data-exfiltration hints, and over-broad permissions before the server is available through your gateway.
If SemVer numbers only adds or changes tools later, gate re-scans and alerts you — before your AI acts on the change.
Add one gateway URL to Claude, ChatGPT, or any MCP client. One-time setup, about two minutes.
Choose SemVer numbers only in the gate directory. No sign-in needed.
SemVer numbers only's tools are live in every AI client you've connected — with rules and logging built in.
Free to start · No credit card · No hosting needed
Fetched live from the official endpoint and re-checked daily by gate — not marketing copy.
semver-parse — SemVer numbers only
utc-time — Current UTC timestamp.
timezone — Current time in a named IANA timezone.
validate-json — Check whether a body is valid JSON. The body is discarded.
normalize-url — Return origin, host, and path for a URL. Query and fragment are dropped.
inspect-robots — Fetch a public robots.txt and return group counts only.
domain-shape — Split a hostname into labels without WHOIS or ownership data.
citation — Return host, scheme, and HTTP status for a URL. Page content is not stored.
+ 22 more tools once connected
https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/semver-parse/mcpYes — SemVer numbers only operates its own remote MCP server at agent-observatory-sensor.nolimit-observatory.workers.dev. gate connects you to that official endpoint and adds security scanning, per-tool access rules, and an activity log on top.
Add gate's gateway URL to your AI client once, then pick SemVer numbers only in the directory. No account or sign-in is needed. From then on, SemVer numbers only's tools are available in every client you've connected to gate.
No. SemVer numbers only runs the server, and gate is fully managed. You just connect one URL — there's nothing to install, deploy, or maintain.
It's the vendor's official endpoint, and gate scans its tools for prompt injection and hidden instructions before it goes live, re-checks it whenever it changes, and lets you allow, block, or require approval for every single tool.
Yes — you can get started with gate for free and connect SemVer numbers only in minutes. No credit card required.
Every server below works through the same gateway URL — connect once, add tools anytime.
Set up SemVer numbers only in: Claude · Claude Code · ChatGPT · Cursor · VS Code
One URL. All MCPs. Full control. Free to start.
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