Uptimeify

domain_expiry

Read-only

Report a domain's registration expiry from WHOIS together with daysUntilExpiry, plus registrar, creation and update dates and the EPP status codes that reveal a domain already in redemption or pending delete. This is the registration, not the certificate: an expiring TLS certificate is check_ssl. tldSupported=false means the TLD has no WHOIS server Uptimeify can query, which is not the same as an unregistered domain. Anonymous and rate-limited per IP.

Input Schema

TableJSON Schema

Name	Required	Description	Default
`domain`	Yes	Domain name, e.g. deinkunde.com

Output Schema

TableJSON Schema

Name	Required	Description	Default
`ok`	No
`tld`	No
`error`	No
`found`	No
`domain`	No
`statuses`	No
`createdAt`	No
`expiresAt`	No
`registrar`	No
`updatedAt`	No
`tldSupported`	No
`daysUntilExpiry`	No

Schema Changelog

Changes observed during successful MCP inspections.

Changed22 schema fields changedSep 11, 2026

removedOutput schema / properties / createdAt / anyOf

Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]

addedOutput schema / properties / createdAt / type
```
Added value: +[
+  "string",
+  "null"
+]
```

removedOutput schema / properties / daysUntilExpiry / anyOf

Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]

addedOutput schema / properties / daysUntilExpiry / type
```
Added value: +[
+  "number",
+  "null"
+]
```

removedOutput schema / properties / domain / anyOf

Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]

addedOutput schema / properties / domain / type
```
Added value: +[
+  "string",
+  "null"
+]
```

removedOutput schema / properties / error / anyOf

Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]

addedOutput schema / properties / error / type
```
Added value: +[
+  "string",
+  "null"
+]
```

removedOutput schema / properties / expiresAt / anyOf

Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]

addedOutput schema / properties / expiresAt / type
```
Added value: +[
+  "string",
+  "null"
+]
```

removedOutput schema / properties / found / anyOf

Removed value: -[
-  {
-    "type": "boolean"
-  },
-  {
-    "type": "null"
-  }
-]

addedOutput schema / properties / found / type
```
Added value: +[
+  "boolean",
+  "null"
+]
```

removedOutput schema / properties / ok / anyOf

Removed value: -[
-  {
-    "type": "boolean"
-  },
-  {
-    "type": "null"
-  }
-]

addedOutput schema / properties / ok / type

Added value: +[
+  "boolean",
+  "null"
+]

removedOutput schema / properties / registrar / anyOf

Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]

addedOutput schema / properties / registrar / type
```
Added value: +[
+  "string",
+  "null"
+]
```

removedOutput schema / properties / tld / anyOf

Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]

addedOutput schema / properties / tld / type

Added value: +[
+  "string",
+  "null"
+]

removedOutput schema / properties / tldSupported / anyOf

Removed value: -[
-  {
-    "type": "boolean"
-  },
-  {
-    "type": "null"
-  }
-]

addedOutput schema / properties / tldSupported / type
```
Added value: +[
+  "boolean",
+  "null"
+]
```

removedOutput schema / properties / updatedAt / anyOf

Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]

addedOutput schema / properties / updatedAt / type
```
Added value: +[
+  "string",
+  "null"
+]
```

Changed1 schema field changedAug 4, 2026

changedOutput schema / (root)

Previous value: -nullNew value: +{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "additionalProperties": {},
+  "properties": {
+    "createdAt": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "daysUntilExpiry": {
+      "anyOf": [
+        {
+          "type": "number"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "domain": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "error": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "expiresAt": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "found": {
+      "anyOf": [
+        {
+          "type": "boolean"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "ok": {
+      "anyOf": [
+        {
+          "type": "boolean"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "registrar": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "statuses": {
+      "anyOf": [
+        {
+          "items": {
+            "type": "string"
+          },
+          "type": "array"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "tld": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "tldSupported": {
+      "anyOf": [
+        {
+          "type": "boolean"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "updatedAt": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    }
+  },
+  "type": "object"
+}

First observedAug 4, 2026

TDQS

A4.1/5.0

Behavior5/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Beyond the readOnlyHint annotation, it discloses that access is anonymous and rate-limited per IP (affecting call pacing), and explains the tldSupported=false semantics ('not the same as an unregistered domain'), a real edge case that prevents misinterpretation of results.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Front-loads the core purpose, then layers the sibling disambiguation, the tldSupported caveat, and the rate-limit note. Dense and largely waste-free, though the enumeration of return fields drifts toward duplicating the output schema.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

An output schema exists so return values need not be re-explained, and the readOnlyHint annotation covers the safety profile. Rate limits, anonymous access, and the tldSupported edge case fill the remaining gaps an agent would need before calling it.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100% for the single required 'domain' param, so the schema already documents it fully. The description adds no syntax, format, or constraint detail beyond what the schema provides, which is the expected baseline when the schema does the heavy lifting.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

States a specific verb and resource ('Report a domain's registration expiry from WHOIS') and enumerates the returned fields (daysUntilExpiry, registrar, creation/update dates, EPP status codes). It explicitly distinguishes itself from check_ssl, but does not differentiate from the sibling 'whois' tool, which covers overlapping ground.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Clearly routes the certificate-vs-registration case to check_ssl ('an expiring TLS certificate is check_ssl'), giving the agent a real alternative. However it offers no guidance on when to prefer this over the sibling 'whois' tool or any exclusion beyond the cert case.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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