Merlonix Monitoring is answering right now. Last checked 8 min ago. It exposes 16 tools.
Monitoring for agencies — uptime, SSL, DNS, blocklists, AI visibility, MCP health. 8 no-auth tools.
Uptime history
91 days of history · worst day 93%
91 days agonow
100.0%
Uptime 24h
91 of 91 checks
16
Tools
read from the server
491 ms
Response time
average over 24h
open, no key
Access
streamable-http
Nothing serious here today
Today is the operative word: we check Merlonix Monitoring 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 8 min ago.
run in your terminal
claude mcp add monitoring --transport http https://api.merlonix.com/mcpSettings → Connectors → Add custom connector, then paste this address
https://api.merlonix.com/mcp~/.codex/config.toml
[mcp_servers.monitoring]
url = "https://api.merlonix.com/mcp".cursor/mcp.json
{
"mcpServers": {
"monitoring": {
"url": "https://api.merlonix.com/mcp"
}
}
}.vscode/mcp.json
{
"servers": {
"monitoring": {
"type": "http",
"url": "https://api.merlonix.com/mcp"
}
}
}Available tools 16
Read directly from the server with tools/list, grouped by what they act on.
If a tool disappears, we record the date.
asset
create_asset
Start monitoring a new asset (website/domain) in YOUR Merlonix account. Provide a hostname and asset_type; optionally a label and which checks to enable. Returns the created asset. Requires an API key with write scope. Subject to your plan asset quota (a full or non-paying plan returns an error).
delete_asset
STOP monitoring one of YOUR assets and remove it, by its asset id (from list_my_assets). This is irreversible — its check history goes too. Requires an API key with write scope.
get_asset_checks
Get the latest check results (SSL, DNS, uptime, heartbeat, port) for ONE of your monitored assets, by its asset id (from list_my_assets). Requires an API key.
update_asset
Update one of YOUR monitored assets by its asset id (from list_my_assets): relabel it or toggle which checks run. Returns the updated asset. Requires an API key with write scope.
vendor
get_vendor_status
Get the current status plus 30-day status history of one monitored vendor by slug (e.g. "cloudflare"). Use list_vendor_status to discover valid slugs.
list_vendor_status
List the current operational status and recent incidents of every third-party vendor Merlonix monitors (e.g. Cloudflare, GitHub, Stripe). Returns each vendor's slug, current status, and 24h incident count.
acknowledge
acknowledge_alert
Acknowledge one of YOUR alerts by its alert id (from list_my_alerts) — marks it as seen/being-handled without resolving it. Optionally attach a note. Requires an API key with write scope.
agent
check_agent_readiness
Score how ready a website is for AI agents and answer engines. Fetches /llms.txt, /robots.txt, and the homepage and returns a letter grade with per-signal findings. No browser rendering or LLM call — deterministic HTTP/parse.
alerts
list_my_alerts
List recent alerts across YOUR monitored assets (SSL changes, downtime, DNS drift, vendor incidents, etc.) with their severity and lifecycle status. Requires an API key.
assets
list_my_assets
List the monitored assets (websites/domains) in YOUR Merlonix account. Returns each asset id, hostname, type, and monitoring status. Requires an API key (Authorization: Bearer mk_… from app.merlonix.com → Settings → API keys).
broken
check_broken_links
Scan one web page for dead links (4xx/5xx/unreachable) and mixed content (http subresources on an https page). Returns each link with its status. Single-page scan, not a crawl — pass the exact page URL. Rate-limited to a few scans per minute, so batch calls will be throttled.
domain
check_domain_health
Check the live SSL/TLS certificate (validity + expiry + issuer), DNS records (A/AAAA/MX/NS resolution), and domain-registration (RDAP) expiry of any public hostname. Each leg fails soft and is reported independently.
email
check_email_blacklist
Check whether a domain or IP is listed on the major DNS blocklists (DNSBLs) that mail providers consult before accepting mail — the usual reason legitimate mail silently lands in spam. Returns each zone checked, whether it is listed, and the return code. Deterministic DNS lookups, no LLM.
mcp
check_mcp_health
Health-check a live MCP (Model Context Protocol) server by URL: performs a real JSON-RPC initialize handshake, then tools/list, and returns whether it is up/degraded/down, its protocol version, server name/version, the callable tool/resource/prompt inventory, transport, and handshake latency. Deterministic — no LLM. Use it to verify your own MCP server is alive and spec-compliant.
plans
list_plans
List Merlonix subscription plans and pricing (Starter, Team, Agency, Compliance) with their monitoring limits.
resolve
resolve_alert
Resolve one of YOUR alerts by its alert id (from list_my_alerts) — closes it. Optionally set resolution ("fixed" | "false_positive" | "wontfix") and a note. Requires an API key with write scope.
Endpoints
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://api.merlonix.com/mcp | streamable-http | answering | 479 ms | 8 min ago |
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Merlonix Monitoring — questions
Answers built from our own checks of this server.
What can Merlonix Monitoring do?
It exposes 16 tools, read directly from the server on our last check. Among them: acknowledge_alert, check_agent_readiness, check_broken_links, check_domain_health, check_email_blacklist, check_mcp_health and 10 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 →
What is Merlonix Monitoring mostly used for?
Its tools cluster around asset and vendor. That is what this server is built to work with — the grouping comes from the actual tool names, not from a category we assigned.
Is Merlonix Monitoring 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 491 ms. The bar chart above shows every period we have measured.
How do I connect Merlonix Monitoring?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Merlonix Monitoring need an API key?
No. Merlonix Monitoring completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 16 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Merlonix Monitoring?
It answers our handshake in 491 ms on average, which is faster than 24% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.