@proof-holdings/mcp-server

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verify_domain

Triggers domain verification by checking DNS records or another verification method to confirm domain ownership for Proof account users.

Instructions

Trigger domain verification. Checks DNS records or other verification method to confirm domain ownership.

ACCESS: needs a Proof account. Set PROOF_API_KEY and restart this server, or sign in with start_login — a session opens this tool — then call this tool again.

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "id": "<id>"
    },
    "name": "verify_domain"
  }
}

Input Schema

Name	Required	Description	Default
`id`	Yes	Domain ID to verify

Output Schema

Name	Required	Description
`data`	Yes	Domain record
`message`	Yes
`renewed`	No	Sent when the call renewed the proof of an already verified domain.
`verified`	Yes	Whether control is confirmed after this call.

Schema Changelog

Changes observed during successful MCP inspections.

Changed2 schema fields changedv1.7.2Nov 6, 2026

removedInput schema / additionalProperties
```
Removed value: -false
```

changedOutput schema / (root)

Previous value: -nullNew value: +{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "additionalProperties": {},
+  "description": "The domain after a verification check, by DNS or by an emailed code",
+  "properties": {
+    "data": {
+      "additionalProperties": {},
+      "description": "Domain record",
+      "properties": {
+        "actual_dns_host": {
+          "type": "string"
+        },
+        "actual_dns_host_name": {
+          "type": "string"
+        },
+        "check_count": {
+          "maximum": 9007199254740991,
+          "minimum": -9007199254740991,
+          "type": "integer"
+        },
+        "created_at": {
+          "type": "string"
+        },
+        "detected_provider": {
+          "type": "string"
+        },
+        "dns_mismatch_warning": {
+          "type": "string"
+        },
+        "dns_records": {
+          "items": {
+            "additionalProperties": {},
+            "properties": {
+              "name": {
+                "type": "string"
+              },
+              "priority": {
+                "maximum": 9007199254740991,
+                "minimum": -9007199254740991,
+                "type": "integer"
+              },
+              "purpose": {
+                "type": "string"
+              },
+              "type": {
+                "type": "string"
+              },
+              "value": {
+                "type": "string"
+              },
+              "verified": {
+                "type": "boolean"
+              },
+              "verified_at": {
+                "type": "string"
+              }
+            },
+            "required": [
+              "type",
+              "name",
+              "value",
+              "purpose",
+              "verified"
+            ],
+            "type": "object"
+          },
+          "type": "array"
+        },
+        "domain": {
+          "type": "string"
+        },
+        "email_sending_enabled": {
+          "type": "boolean"
+        },
+        "email_verification": {
+          "additionalProperties": {},
+          "properties": {
+            "attempts": {
+              "maximum": 9007199254740991,
+              "minimum": -9007199254740991,
+              "type": "integer"
+            },
+            "email_address": {
+              "type": "string"
+            },
+            "email_prefix": {
+              "type": "string"
+            },
+            "expires_at": {
+              "type": "string"
+            },
+            "last_sent_at": {
+              "type": "string"
+            },
+            "verified_at": {
+              "type": "string"
+            }
+          },
+          "required": [
+            "email_prefix",
+            "email_address",
+            "expires_at",
+            "attempts"
+          ],
+          "type": "object"
+        },
+        "error_message": {
+          "type": "string"
+        },
+        "for_email_sending": {
+          "type": "boolean"
+        },
+        "for_verification": {
+          "type": "boolean"
+        },
+        "from_email": {
+          "type": "string"
+        },
+        "godaddy_connected": {
+          "type": "boolean"
+        },
+        "has_dns_mismatch": {
+          "type": "boolean"
+        },
+        "has_provider_credentials": {
+          "type": "boolean"
+        },
+        "http_file_content": {
+          "type": "string"
+        },
+        "http_file_path": {
+          "type": "string"
+        },
+        "id": {
+          "type": "string"
+        },
+        "last_checked_at": {
+          "type": "string"
+        },
+        "oauth_connected": {
+          "type": "boolean"
+        },
+        "oauth_url": {
+          "type": "string"
+        },
+        "profile_id": {
+          "type": "string"
+        },
+        "proof_expires_at": {
+          "type": [
+            "string",
+            "null"
+          ]
+        },
+        "proof_id": {
+          "type": [
+            "string",
+            "null"
+          ]
+        },
+        "proof_revoked_reason": {
+          "type": [
+            "string",
+            "null"
+          ]
+        },
+        "proof_status": {
+          "type": [
+            "string",
+            "null"
+          ]
+        },
+        "provider": {
+          "type": "string"
+        },
+        "provider_credential_name": {
+          "type": "string"
+        },
+        "provider_name": {
+          "type": "string"
+        },
+        "resend": {
+          "additionalProperties": {},
+          "properties": {
+            "dkim_records": {
+              "items": {
+                "additionalProperties": {},
+                "properties": {
+                  "name": {
+                    "type": "string"
+                  },
+                  "priority": {
+                    "maximum": 9007199254740991,
+                    "minimum": -9007199254740991,
+                    "type": "integer"
+                  },
+                  "purpose": {
+                    "type": "string"
+                  },
+                  "type": {
+                    "type": "string"
+                  },
+                  "value": {
+                    "type": "string"
+                  },
+                  "verified": {
+                    "type": "boolean"
+                  },
+                  "verified_at": {
+                    "type": "string"
+                  }
+                },
+                "required": [
+                  "type",
+                  "name",
+                  "value",
+                  "purpose",
+                  "verified"
+                ],
+                "type": "object"
+              },
+              "type": "array"
+            },
+            "domain_id": {
+              "type": "string"
+            },
+            "last_checked_at": {
+              "type": "string"
+            },
+            "registered_at": {
+              "type": "string"
+            },
+            "status": {
+              "type": "string"
+            },
+            "verified_at": {
+              "type": "string"
+            }
+          },
+          "required": [
+            "status",
+            "dkim_records"
+          ],
+          "type": "object"
+        },
+        "status": {
+          "type": "string"
+        },
+        "supports_api_key": {
+          "type": "boolean"
+        },
+        "supports_api_token": {
+          "type": "boolean"
+        },
+        "supports_auto_dns": {
+          "type": "boolean"
+        },
+        "txt_record_name": {
+          "type": "string"
+        },
+        "txt_record_value": {
+          "type": "string"
+        },
+        "updated_at": {
+          "type": "string"
+        },
+        "verification_method": {
+          "type": "string"
+        },
+        "verification_subtype": {
+          "type": "string"
+        },
+        "verified_at": {
+          "type": "string"
+        },
+        "verified_providers": {
+          "items": {
+            "type": "string"
+          },
+          "type": "array"
+        }
+      },
+      "required": [
+        "id",
+        "domain",
+        "status",
+        "detected_provider",
+        "provider_name",
+        "supports_auto_dns",
+        "verification_method",
+        "for_email_sending",
+        "for_verification",
+        "dns_records",
+        "has_dns_mismatch",
+        "txt_record_name",
+        "txt_record_value",
+        "http_file_path",
+        "http_file_content",
+        "oauth_connected",
+        "godaddy_connected",
+        "supports_api_token",
+        "supports_api_key",
+        "verified_providers",
+        "check_count",
+        "created_at",
+        "updated_at"
+      ],
+      "type": "object"
+    },
+    "message": {
+      "type": "string"
+    },
+    "renewed": {
+      "description": "Sent when the call renewed the proof of an already verified domain.",
+      "type": "boolean"
+    },
+    "verified": {
+      "description": "Whether control is confirmed after this call.",
+      "type": "boolean"
+    }
+  },
+  "required": [
+    "data",
+    "verified",
+    "message"
+  ],
+  "type": "object"
+}

First observedv1.1.0Sep 9, 2026

TDQS

A3.5/5.0

Behavior3/5

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

Annotations already declare readOnlyHint=false and destructiveHint=false, and the description is consistent with a non-destructive trigger. It adds real value by disclosing the auth/session requirement and the two-step 'session opens this tool, then call again' behavior, but says nothing about idempotency, rate limits, how long the check takes, or what happens if records are missing.

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-loaded with the action in the first sentence, then the access caveat. The ACCESS block is slightly dense but every clause is actionable none is redundant.

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

Completeness4/5

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

With one required parameter, an output schema, and annotations covering the safety profile, the description covers the main hidden barrier (authentication) and the re-invocation pattern. The notable gap is disambiguation from the large family of sibling verification tools, which is the most likely source of misselection.

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?

Only one parameter ('id') and schema description coverage is 100%, with the schema already stating 'Domain ID to verify'. The description adds no meaning beyond that, so the baseline 3 applies.

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?

Clear verb+resource: 'Trigger domain verification' plus a one-line explanation that it checks DNS or another method to confirm ownership. It does not, however, distinguish itself from the many near-identical siblings such as start_domain_verification, check_domain_verification, verify_domain_with_credentials, or trigger_verification, so an agent still has to guess which verification tool applies.

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

Usage Guidelines3/5

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

Usage is only implied: you call it on a domain that has been added and needs ownership confirmed. The description adds an important prerequisite chain (needs a Proof account; set PROOF_API_KEY and restart, or sign in with start_login and then re-call this tool), but gives no explicit 'use this instead of X' routing against the crowded verification sibling set.

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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