ToolAssay

Email verification / validate email

Email verification / validate email: checks if an email address is real and deliverable (SMTP mailbox check), flags disposable, catch-all and role emails. Use before sending, for lead lists, CRM cleanup and sign-up fraud checks. $0.01.

Not tested: has real-world effectsour last check, 2026-10-18
0 of 0checks answered this week
n/amedian answer time
$0.01listed price per call
n/aprice it asked us

Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.

Endpoint

GET https://verify-x402.okwithit9.workers.dev/verify/email

CategoryEverything else
Provider hostverify-x402.okwithit9.workers.dev
Networkseip155:8453
Payment schemesexact
Self-reported calls, 30 days5 from 3 payers (the provider's figure, not ours)

Our checks, last 30 days

We never call tools that send, buy, move money or file anything, not even without paying.

Example input (from the provider)

{
  "method": "GET",
  "queryParams": {
    "email": {
      "description": "Email address to verify. Syntax is checked before payment.",
      "example": "ada@example.com",
      "required": true,
      "type": "string"
    }
  },
  "type": "http"
}

Promised output schema (from the provider)

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "input": {
      "additionalProperties": false,
      "properties": {
        "method": {
          "enum": [
            "GET"
          ],
          "type": "string"
        },
        "queryParams": {
          "properties": {
            "email": {
              "additionalProperties": false,
              "description": "Email address to verify. Syntax is checked before payment.",
              "properties": {
                "description": {
                  "type": "string"
                },
                "example": {
                  "type": "string"
                },
                "required": {
                  "const": true
                },
                "type": {
                  "const": "string"
                }
              },
              "required": [
                "type",
                "description",
                "required",
                "example"
              ],
              "type": "object"
            }
          },
          "required": [
            "email"
          ],
          "type": "object"
        },
        "type": {
          "const": "http",
          "type": "string"
        }
      },
      "required": [
        "type",
        "method"
      ],
      "type": "object"
    },
    "output": {
      "properties": {
        "example": {
          "properties": {
            "is_catch_all": {
              "type": "boolean"
            },
            "is_deliverable": {
              "type": "boolean"
            },
            "is_disposable": {
              "type": "boolean"
            },
            "is_role_account": {
              "type": "boolean"
            },
            "overall_score": {
              "description": "Numeric confidence score when the check includes one.",
              "type": "number"
            },
            "status": {
              "description": "Deliverability status for the mailbox.",
              "type": "string"
            }
          },
          "type": "object"
        },
        "type": {
          "type": "string"
        }
      },
      "required": [
        "type"
      ],
      "type": "object"
    }
  },
  "required": [
    "input"
  ],
  "type": "object"
}

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