Is This Site Down?
Check if any website is down, from two continents, with uptime history and TLS expiry
我該用這個嗎
品質與安全性
A
根據工具定義與協定合規性的自動化分析。
上下文成本
~2,284Token（工具定義）
~4.5 KB典型回應大小
中等的注意力影響（128k 上下文的 1.78%）
這是每次將伺服器的工具載入模型上下文時所消耗的約略 token 數量。數量越高，可用於其他工作的注意力就越少。
安裝
一鍵安裝
將以下內容加入你的 `claude_desktop_config.json` 檔案：
{
"mcpServers": {
"is-it-down": {
"url": "https://downforjustmeoreveryone.com/mcp"
}
}
}遠端端點
https://downforjustmeoreveryone.com/mcpstreamable-http它能做什麼
工具清單
工具（5）
🟢 唯讀🟡 寫入🔴 刪除⚪ 未知
🟢check_site(domain)
Live up/down check of any public website from an independent server (Singapore; Boston for sites that geo-block Singapore). Returns a one-sentence verdict plus status code, latency, resolved IP, redirect target, the view from the other region when available, and how many users reported problems in the last hour. Results are cached 30 s per domain.
輸入結構描述
{
"type": "object",
"properties": {
"domain": {
"type": "string",
"description": "Domain or URL to check, e.g. \"github.com\" or \"https://www.reddit.com/r/all\". Scheme, path, port and query are ignored; the host is checked as given."
}
},
"required": [
"domain"
],
"additionalProperties": false
}輸出結構描述
{
"type": "object",
"properties": {
"domain": {
"type": "string"
},
"up": {
"type": "boolean"
},
"state": {
"type": "string",
"enum": [
"up",
"slow",
"error",
"maintenance",
"down"
]
},
"status": {
"type": [
"integer",
"null"
]
},
"latencyMs": {
"type": [
"number",
"null"
]
},
"checkedAt": {
"type": "string",
"description": "ISO 8601"
},
"reason": {
"type": "string"
},
"ip": {
"type": [
"string",
"null"
]
},
"scheme": {
"type": [
"string",
"null"
],
"enum": [
"https",
"http",
null
]
},
"finalUrl": {
"type": [
"string",
"null"
]
},
"redirected": {
"type": "boolean"
},
"server": {
"type": [
"string",
"null"
]
},
"tls": {
"type": [
"object",
"null"
],
"properties": {
"daysRemaining": {
"type": "number"
},
"validTo": {
"type": "string"
},
"issuer": {
"type": [
"string",
"null"
]
}
}
},
"checkedFrom": {
"type": "string",
"enum": [
"sg",
"us"
],
"description": "sg = Singapore, us = Boston"
},
"regions": {
"type": "object",
"description": "Fresh result from each region that has one",
"properties": {
"sg": {
"type": "object",
"properties": {
"domain": {
"type": "string"
},
"up": {
"type": "boolean"
},
"state": {
"type": "string",
"enum": [
"up",
"slow",
"error",
"maintenance",
"down"
]
},
"status": {
"type": [
"integer",
"null"
]
},
"latencyMs": {
"type": [
"number",
"null"
]
},
"checkedAt": {
"type": "string",
"description": "ISO 8601"
},
"reason": {
"type": "string"
},
"ip": {
"type": [
"string",
"null"
]
},
"scheme": {
"type": [
"string",
"null"
],
"enum": [
"https",
"http",
null
]
},
"finalUrl": {
"type": [
"string",
"null"
]
},
"redirected": {
"type": "boolean"
},
"server": {
"type": [
"string",
"null"
]
},
"tls": {
"type": [
"object",
"null"
],
"properties": {
"daysRemaining": {
"type": "number"
},
"validTo": {
"type": "string"
},
"issuer": {
"type": [
"string",
"null"
]
}
}
}
},
"required": [
"domain",
"up",
"state",
"status",
"latencyMs",
"checkedAt",
"reason"
]
},
"us": {
"type": "object",
"properties": {
"domain": {
"type": "string"
},
"up": {
"type": "boolean"
},
"state": {
"type": "string",
"enum": [
"up",
"slow",
"error",
"maintenance",
"down"
]
},
"status": {
"type": [
"integer",
"null"
]
},
"latencyMs": {
"type": [
"number",
"null"
]
},
"checkedAt": {
"type": "string",
"description": "ISO 8601"
},
"reason": {
"type": "string"
},
"ip": {
"type": [
"string",
"null"
]
},
"scheme": {
"type": [
"string",
"null"
],
"enum": [
"https",
"http",
null
]
},
"finalUrl": {
"type": [
"string",
"null"
]
},
"redirected": {
"type": "boolean"
},
"server": {
"type": [
"string",
"null"
]
},
"tls": {
"type": [
"object",
"null"
],
"properties": {
"daysRemaining": {
"type": "number"
},
"validTo": {
"type": "string"
},
"issuer": {
"type": [
"string",
"null"
]
}
}
}
},
"required": [
"domain",
"up",
"state",
"status",
"latencyMs",
"checkedAt",
"reason"
]
}
}
},
"reportsLastHour": {
"type": "integer"
},
"curated": {
"type": "boolean",
"description": "true if the site is one of the monitored sites"
},
"statusUrl": {
"type": [
"string",
"null"
]
},
"url": {
"type": "string"
}
},
"required": [
"domain",
"up",
"state",
"status",
"latencyMs",
"checkedAt",
"reason",
"checkedFrom",
"regions",
"reportsLastHour",
"curated",
"statusUrl",
"url"
]
}🟢list_outages(category)
Lists the monitored sites (634 across 17 categories) that are confirmed down right now: two consecutive failed checks from their home region and no other region seeing them up in the last 15 minutes. Optional category filter.
輸入結構描述
{
"type": "object",
"properties": {
"category": {
"type": "string",
"description": "Optional category slug or name: social, streaming, ai, work, developer, shopping, finance, banks, gaming, telecom, government, education, messaging, news, travel, health, dating."
}
},
"additionalProperties": false
}輸出結構描述
{
"type": "object",
"properties": {
"asOf": {
"type": "string"
},
"monitored": {
"type": "integer"
},
"category": {
"type": [
"string",
"null"
]
},
"down": {
"type": "array",
"items": {
"type": "object",
"properties": {
"domain": {
"type": "string"
},
"name": {
"type": "string"
},
"category": {
"type": "string"
},
"checkedFrom": {
"type": "string",
"enum": [
"sg",
"us"
],
"description": "sg = Singapore, us = Boston"
},
"statusUrl": {
"type": "string"
},
"url": {
"type": "string"
},
"since": {
"type": [
"string",
"null"
]
},
"downForMinutes": {
"type": [
"integer",
"null"
]
}
},
"required": [
"domain",
"name",
"category",
"url",
"since",
"downForMinutes"
]
}
}
},
"required": [
"asOf",
"monitored",
"category",
"down"
]
}🟢site_history(domain, days)
Uptime percentage over 24 h and over the requested window (up to 7 days), the list of outages in that window, when the site was last seen down, the current state and user-report counts. Only for monitored sites (see list_monitored_sites); use check_site for anything else.
輸入結構描述
{
"type": "object",
"properties": {
"domain": {
"type": "string",
"description": "A monitored domain, e.g. \"github.com\"."
},
"days": {
"type": "integer",
"minimum": 1,
"maximum": 7,
"description": "Window in days (1–7, default 7)."
}
},
"required": [
"domain"
],
"additionalProperties": false
}輸出結構描述
{
"type": "object",
"properties": {
"domain": {
"type": "string"
},
"name": {
"type": "string"
},
"category": {
"type": "string"
},
"checkedFrom": {
"type": "string",
"enum": [
"sg",
"us"
],
"description": "sg = Singapore, us = Boston"
},
"days": {
"type": "integer"
},
"uptime24h": {
"type": [
"number",
"null"
],
"description": "Percent, null if no data yet"
},
"uptimeWindow": {
"type": [
"number",
"null"
],
"description": "Percent over `days`, null if no data yet"
},
"current": {
"type": [
"object",
"null"
],
"properties": {
"domain": {
"type": "string"
},
"up": {
"type": "boolean"
},
"state": {
"type": "string",
"enum": [
"up",
"slow",
"error",
"maintenance",
"down"
]
},
"status": {
"type": [
"integer",
"null"
]
},
"latencyMs": {
"type": [
"number",
"null"
]
},
"checkedAt": {
"type": "string",
"description": "ISO 8601"
},
"reason": {
"type": "string"
},
"ip": {
"type": [
"string",
"null"
]
},
"scheme": {
"type": [
"string",
"null"
],
"enum": [
"https",
"http",
null
]
},
"finalUrl": {
"type": [
"string",
"null"
]
},
"redirected": {
"type": "boolean"
},
"server": {
"type": [
"string",
"null"
]
},
"tls": {
"type": [
"object",
"null"
],
"properties": {
"daysRemaining": {
"type": "number"
},
"validTo": {
"type": "string"
},
"issuer": {
"type": [
"string",
"null"
]
}
}
}
},
"required": [
"domain",
"up",
"state",
"status",
"latencyMs",
"checkedAt",
"reason"
]
},
"incidents": {
"type": "array",
"items": {
"type": "object",
"properties": {
"start": {
"type": "string"
},
"end": {
"type": [
"string",
"null"
]
},
"durationMinutes": {
"type": [
"integer",
"null"
]
},
"ongoing": {
"type": "boolean"
}
},
"required": [
"start",
"end",
"durationMinutes",
"ongoing"
]
}
},
"lastDown": {
"type": [
"string",
"null"
]
},
"reportsLastHour": {
"type": "integer"
},
"reports24h": {
"type": "integer"
},
"statusUrl": {
"type": [
"string",
"null"
]
},
"url": {
"type": "string"
}
},
"required": [
"domain",
"name",
"category",
"checkedFrom",
"days",
"uptime24h",
"uptimeWindow",
"current",
"incidents",
"lastDown",
"reportsLastHour",
"reports24h",
"statusUrl",
"url"
]
}🟢check_certificate(domain)
Reads the HTTPS certificate of a public domain and reports days until expiry, the expiry date and the issuer.
輸入結構描述
{
"type": "object",
"properties": {
"domain": {
"type": "string",
"description": "Domain to inspect, e.g. \"example.com\"."
}
},
"required": [
"domain"
],
"additionalProperties": false
}輸出結構描述
{
"type": "object",
"properties": {
"domain": {
"type": "string"
},
"daysRemaining": {
"type": "number",
"description": "Negative once expired"
},
"validTo": {
"type": "string"
},
"issuer": {
"type": [
"string",
"null"
]
},
"state": {
"type": "string",
"enum": [
"valid",
"expiring soon",
"EXPIRED"
]
}
},
"required": [
"domain",
"daysRemaining",
"validTo",
"issuer",
"state"
]
}🟢list_monitored_sites(category, query)
The 634 sites checked every 5 minutes, grouped in 17 categories. Without arguments returns the category list with counts; filter by category or a text query to get domains (at most 200 per call).
輸入結構描述
{
"type": "object",
"properties": {
"category": {
"type": "string",
"description": "Category slug or name: social, streaming, ai, work, developer, shopping, finance, banks, gaming, telecom, government, education, messaging, news, travel, health, dating."
},
"query": {
"type": "string",
"description": "Case-insensitive substring of the domain or display name, e.g. \"bank\" or \"google\"."
}
},
"additionalProperties": false
}輸出結構描述
{
"type": "object",
"properties": {
"total": {
"type": "integer"
},
"categories": {
"type": "array",
"items": {
"type": "object",
"properties": {
"slug": {
"type": "string"
},
"name": {
"type": "string"
},
"count": {
"type": "integer"
},
"url": {
"type": "string"
}
},
"required": [
"slug",
"name",
"count",
"url"
]
}
},
"matched": {
"type": "integer"
},
"returned": {
"type": "integer"
},
"category": {
"type": [
"string",
"null"
]
},
"query": {
"type": [
"string",
"null"
]
},
"sites": {
"type": "array",
"items": {
"type": "object",
"properties": {
"domain": {
"type": "string"
},
"name": {
"type": "string"
},
"category": {
"type": "string"
},
"checkedFrom": {
"type": "string",
"enum": [
"sg",
"us"
],
"description": "sg = Singapore, us = Boston"
},
"statusUrl": {
"type": "string"
},
"url": {
"type": "string"
}
},
"required": [
"domain",
"name",
"category",
"url"
]
}
}
},
"required": [
"total"
],
"description": "Without arguments: total + categories. With category or query: total, matched, returned, category, query, sites."
}社群
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