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OhSnap uptime monitoring

by ohsnap.io · remote · no sign-in to list tools · v1.0.0 · published by io.ohsnap

Check if a website is down, add uptime monitors, read outage history and send test alerts.

Final · 1Changes · 2
CompareRegistry entry

6 tools: 1 do something that can't be undone, 2 change things and 3 only read.

Scanned Oct 21, 2026

No check matched anything in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http ohsnap https://mcp.ohsnap.io/mcp

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

6 tools

Can't be undone 1Claude Code: ask
  • send_test_alertSends a clearly labelled test DOWN alert through every alert channel linked to a monitor (email, SMS, WhatsApp, Slack, Telegram), so the user can confirm alerts reach them.No findings

    Why it is in this group

    • The name "send_test_alert" says "send": a word for sending, and what is sent cannot be taken back.
    Description, as the server wrote it
    Sends a clearly labelled test DOWN alert through every alert channel linked to a monitor (email, SMS, WhatsApp, Slack, Telegram), so the user can confirm alerts reach them. Limited to one test per monitor per minute.

    Annotations the server declares

    • readOnlyHint: false
    • destructiveHint: false
    • idempotentHint: false
    • openWorldHint: true
Changes things 2Claude Code: ask
  • add_monitorAdds a website to OhSnap so it is checked around the clock and the user is alerted when it goes down or comes back.No findings

    Why it is in this group

    • The name "add_monitor" says "add": a word for a change.
    Description, as the server wrote it
    Adds a website to OhSnap so it is checked around the clock and the user is alerted when it goes down or comes back. Free accounts can monitor 5 sites every 5 minutes; Unlimited allows any number every 30 seconds. Pass alert_email if the account has no alert channel yet, otherwise the monitor will run silently. SMS, WhatsApp, Slack and Telegram alerts are configured in the OhSnap dashboard.

    Annotations the server declares

    • readOnlyHint: false
    • destructiveHint: false
    • idempotentHint: false
    • openWorldHint: true
  • check_websiteOne-off check of whether a website is up right now, from OhSnap's probe network.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    One-off check of whether a website is up right now, from OhSnap's probe network. Works without an account. Use when the user asks "is my site down?", "is X up?", or wants a status code, response time, or the reason a site fails (DNS failure, SSL error, timeout, HTTP error, Cloudflare edge error). Results are cached for 60 seconds per site, and each user can run 10 checks per minute.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
Only reads 3Claude Code: allow
  • get_incidentsReturns recent outages for one monitored website: when each started and ended, how long it lasted, and the error.No findings

    Why it is in this group

    • The name "get_incidents" says "get": a word for reading.
    Description, as the server wrote it
    Returns recent outages for one monitored website: when each started and ended, how long it lasted, and the error. On the Unlimited plan each incident includes an AI diagnosis in plain language; on Free it is marked ai_locked.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
  • list_monitorsLists every website this OhSnap account monitors, with its current status (up, down, warning, pending), last response time, and check interval.No findings

    Why it is in this group

    • The name "list_monitors" says "list": a word for reading.
    Description, as the server wrote it
    Lists every website this OhSnap account monitors, with its current status (up, down, warning, pending), last response time, and check interval. Use to answer "are my sites up?" and to find a website_id for other tools.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
  • whoamiReturns the OhSnap account this MCP key belongs to: email, plan (Free, Unlimited, Agency), the monitor cap, and the fastest allowed check interval.No findings

    Why it is in this group

    • The name "whoami" says "whoami": a word for reading.
    Description, as the server wrote it
    Returns the OhSnap account this MCP key belongs to: email, plan (Free, Unlimited, Agency), the monitor cap, and the fastest allowed check interval. Call before add_monitor to explain plan limits up front.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 1.0.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http ohsnap https://mcp.ohsnap.io/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__ohsnap__whoami",
      "mcp__ohsnap__list_monitors",
      "mcp__ohsnap__get_incidents"
    ],
    "ask": [
      "mcp__ohsnap__check_website",
      "mcp__ohsnap__add_monitor",
      "mcp__ohsnap__send_test_alert"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as ohsnap. Review it before you use it.