Merlonix Monitoring

Measured conclusion: Deep-tested. L2 outcome: tools_ok.

Monitoring for agencies — uptime, SSL, DNS, blocklists, AI visibility, MCP health. 8 no-auth tools.

Add to your agent

Copy this into your MCP client config:

{
  "mcpServers": {
    "Merlonix Monitoring": {
      "url": "https://api.merlonix.com/mcp",
      "transport": "streamable-http"
    }
  }
}

Measured tools (16)

• check_domain_health read-only

  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.

  Parameters:

  • hostname (required) — string — A public hostname, e.g. example.com

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world not declared

• check_agent_readiness read-only

  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.

  Parameters:

  • hostname (required) — string — A public hostname, e.g. example.com

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world not declared

• check_mcp_health read-only

  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.

  Parameters:

  • url (required) — string — The MCP endpoint URL, e.g. https://example.com/mcp

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world not declared

• check_email_blacklist read-only

  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.

  Parameters:

  • domain (required) — string — A public domain or IP address, e.g. example.com or 203.0.113.10

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world not declared

• check_broken_links read-only

  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.

  Parameters:

  • url (required) — string — The exact page URL to scan, e.g. https://example.com/pricing

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world not declared

• list_vendor_status read-only

  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.

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world not declared

• get_vendor_status read-only

  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.

  Parameters:

  • slug (required) — string — Vendor slug, e.g. cloudflare

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world not declared

• list_plans read-only

  List Merlonix subscription plans and pricing (Starter, Team, Agency, Compliance) with their monitoring limits.

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world not declared

• list_my_assets read-only

  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).

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world not declared

• get_asset_checks read-only

  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.

  Parameters:

  • asset_id (required) — string — The asset id from list_my_assets (a UUID).

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world not declared

• list_my_alerts read-only

  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.

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world not declared

• 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).

  Parameters:

  • hostname (required) — string — The hostname to monitor, e.g. example.com
  • asset_type (required) — string — Asset kind: "hostname" (a website/host), "domain", "certificate", or "dns_record".
  • label — string — Optional human label (max 120 chars).
  • dns_enabled — boolean — Monitor DNS records.
  • ssl_enabled — boolean — Monitor the TLS certificate (default on for hostnames).
  • domain_enabled — boolean — Monitor domain-registration (RDAP) expiry.
  • uptime_check_url — string — Optional URL to probe for uptime (enables uptime checks).

  Hints: read-only no · destructive no · idempotent no · open-world not declared

• 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.

  Parameters:

  • asset_id (required) — string — The asset id from list_my_assets (a UUID).
  • label — string — New label (max 120 chars).
  • dns_enabled — boolean — Enable/disable DNS monitoring.
  • ssl_enabled — boolean — Enable/disable TLS-certificate monitoring.
  • domain_enabled — boolean — Enable/disable domain-registration (RDAP) monitoring.

  Hints: read-only no · destructive no · idempotent yes · open-world not declared

• delete_asset destructive

  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.

  Parameters:

  • asset_id (required) — string — The asset id from list_my_assets (a UUID).

  Hints: read-only no · destructive yes · idempotent yes · open-world not declared

• 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.

  Parameters:

  • alert_id (required) — string — The alert id from list_my_alerts (a UUID).
  • note — string — Optional note (max 500 chars).

  Hints: read-only no · destructive no · idempotent yes · open-world not declared

• 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.

  Parameters:

  • alert_id (required) — string — The alert id from list_my_alerts (a UUID).
  • note — string — Optional note (max 500 chars).
  • resolution — string — Why the alert is being closed.

  Hints: read-only no · destructive no · idempotent yes · open-world not declared

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