@proof-holdings/mcp-server

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by ProofHoldings

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TypeScript

Hybrid

confirm_domain_email_code

Submit the verification code sent to a corporate email address to complete domain email verification.

Instructions

Confirm domain email verification by submitting the code sent to the corporate email address.

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.

Input Schema

Name	Required	Description	Default
`id`	Yes	Domain ID
`code`	Yes	Verification code from the email

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 adds genuinely useful context: the Proof account/PROOF_API_KEY requirement and that a session from start_login unlocks the tool. It says nothing about code expiry, lockout after wrong attempts, rate limits, or the effect of a successful confirmation, which are the remaining behavioral gaps.

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?

Two short, front-loaded paragraphs: the action first, then the access prerequisite. No filler, though the access block is somewhat operational rather than tool-specific.

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?

The tool is simple (2 required params, output schema present, annotations present), and the description covers the action plus the auth prerequisite that would otherwise block an agent. Failure-mode behavior is the only meaningful omission.

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 coverage is 100%, with both 'id' (Domain ID) and 'code' (verification code from the email) documented in the schema itself. The description only restates that the code comes from the corporate email and adds no format, length, or sourcing detail beyond the schema, 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?

The description states a specific verb and resource ('Confirm domain email verification') and specifies the mechanism ('by submitting the code sent to the corporate email address'), which separates it from start_domain_email_verification (which initiates the send) and resend_domain_email. It does not explicitly name those siblings, so it falls short of the top mark.

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 implied by the flow ('then call this tool again' after a session opens), and the ACCESS paragraph gives a real prerequisite. However, it does not say when to call resend_domain_email instead if the code expired, nor what to do on a rejected code, so alternatives and exclusions are absent.

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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