Uptime & SSL Monitor

Live

Scheduled HTTP checks and certificate expiry on public URLs.

Watch a public URL for downtime and TLS expiry, on a schedule, with the same SSRF guard as Site Audit. Alerts when the URL becomes unreachable (second consecutive failure), returns HTTP 5xx, the certificate enters the 21-day window or expires, or the name does not match. Not a multi-region synthetic monitor — one check from our servers, daily or weekly.

Start free Tool reference

Server URL

streamable http

https://toolcargo.com/mcp/uptime-monitor

Claude Code

terminal

claude mcp add --transport http --scope user toolcargo-uptime-monitor https://toolcargo.com/mcp/uptime-monitor \
  --header "Authorization: Bearer YOUR_API_KEY"

Create a key in your dashboard. Other clients: setup guides.

What it helps you do

HTTP up or down with status code, on a schedule.
Certificate days remaining and hostname match.
Email alerts on change (confirmed address), plus history in your assistant.

Built for: Agencies who want a yes/no uptime signal next to Page Watch SEO alerts.

Example requests

Watch a launch URL

“Monitor https://client.com/ with ToolCargo daily and tell me if it goes down or the certificate is close to expiry.”

Baseline HTTP and TLS, then scheduled checks. Alerts only when something changes.

List monitors

“What URLs am I monitoring for uptime?”

Each URL with last status, TLS days remaining and next check time.

Step-by-step workflows: pre-launch check · fixing link previews

Tools

Tool	What it does	Access
`watch_uptime` Watch uptime	Start (or update) an HTTP + TLS check on one public URL. Runs a baseline now, then re-checks daily or weekly and records alerts when the URL becomes unreachable, returns HTTP 5xx, the certificate enters the 21-day window or expires, or the certificate name does not match.	Writes a document (not a third-party API)
`list_uptime` List monitors	URLs you monitor, last HTTP status, certificate days remaining, frequency and next check time.	Read-only
`uptime_history` Uptime history	Recent alerts and recoveries for one monitored URL.	Read-only
`stop_uptime` Stop monitoring	Stop monitoring a URL and delete its alert history.	Writes a document (not a third-party API)

Requirements

• A ToolCargo account with Site Audit activated (free).
• Public http(s) URLs only.

Limitations

• Not a full synthetic monitor: no browser, no multi-region, not continuous.
• Private hosts, non-default ports and credentialed URLs are refused.
• Unreachable is alerted on the second consecutive failure so one network blip does not page you.
• One-shot SSL lookup remains at /mcp/ssl-check.

Supported clients

“Tested” means we connected that client to this endpoint and ran a tool call ourselves. “Documented” means the client supports this setup per its own docs, but we have not tested it yet.

Claude Code	API key header	Tested	Remote HTTP server with an Authorization header. Tested 2026-09-11 (v2.1.268).
Claude (claude.ai)	OAuth sign-in	Tested	Custom connector with OAuth sign-in; tested on claude.ai web 2026-09-11. Desktop and mobile use the same account connectors but were not tested separately.
Cursor	API key header	Documented, not yet tested	mcp.json with url and headers.
VS Code (Copilot agent mode)	API key header	Documented, not yet tested	.vscode/mcp.json with type http and headers.
ChatGPT (developer mode)	OAuth sign-in	Documented, not yet tested	Requires OAuth; API keys cannot be entered.
MCP Inspector	API key header	Tested	CLI mode, tested 2026-09-11. Useful for calling tools directly.

Pricing

Free

For trying the connector on your own sites.

50 calls/month · 25 links per check

Pro

$12/mo

For freelancers and agencies auditing client sites every week.

2,000 calls/month · 100 links per check

Proposed test price. See the pricing page for checkout status.

Full pricing and billing details