---
updatedAt: 2026-08-24T15:05:38.000Z
agentTools:
  projectIndex: https://dropleads.readme.io/llms.txt
---

# Email Verifier

Verify the deliverability of a single email address.

**Required fields:** `email`

**Credits:** 0.1 credits for `valid` or `invalid` results. No credits charged for `catch_all` or `unknown`.

# OpenAPI definition

```json
{
  "openapi": "3.0.0",
  "info": {
    "title": "Data Enrichment",
    "version": "1.0.0",
    "description": "DropLeads data enrichment endpoints for finding and verifying emails and mobile numbers.\n\n**Base URL**: `https://api.dropleads.io`\n",
    "contact": {
      "email": "support@dropleads.io",
      "url": "https://dropleads.io"
    }
  },
  "servers": [
    {
      "url": "https://api.dropleads.io",
      "description": "Production server"
    }
  ],
  "security": [
    {
      "ApiKeyAuth": []
    }
  ],
  "tags": [
    {
      "name": "Data Enrichment",
      "description": "Email finding, mobile finding, and email verification endpoints."
    }
  ],
  "paths": {
    "/email-verifier": {
      "post": {
        "tags": [
          "Data Enrichment"
        ],
        "summary": "Email Verifier",
        "description": "Verify the deliverability of a single email address.\n\n**Required fields:** `email`\n\n**Credits:** 0.1 credits for `valid` or `invalid` results. No credits charged for `catch_all` or `unknown`.",
        "operationId": "verifyEmail",
        "parameters": [
          {
            "name": "Content-Type",
            "in": "header",
            "required": true,
            "schema": {
              "type": "string"
            },
            "example": "application/json"
          }
        ],
        "requestBody": {
          "required": true,
          "content": {
            "application/json": {
              "schema": {
                "type": "object",
                "required": [
                  "email"
                ],
                "properties": {
                  "email": {
                    "type": "string",
                    "format": "email",
                    "description": "Email address to verify.",
                    "example": "test@gmail.com"
                  }
                }
              },
              "example": {
                "email": "test@gmail.com"
              }
            }
          }
        },
        "responses": {
          "200": {
            "description": "Successful response",
            "content": {
              "application/json": {
                "schema": {
                  "type": "object",
                  "properties": {
                    "email": {
                      "type": "string",
                      "description": "Echoed email address.",
                      "example": "test@gmail.com"
                    },
                    "status": {
                      "type": "string",
                      "enum": [
                        "valid",
                        "invalid",
                        "catch_all",
                        "unknown"
                      ],
                      "description": "Verification result.",
                      "example": "invalid"
                    },
                    "mx_record": {
                      "type": "string",
                      "description": "MX record of the email domain.",
                      "example": "alt4.gmail-smtp-in.l.google.com"
                    },
                    "mx_provider": {
                      "type": "string",
                      "description": "Email provider name.",
                      "example": "Google"
                    },
                    "credits_charged": {
                      "type": "number",
                      "description": "Credits deducted. 0.1 for valid/invalid, 0 for catch_all/unknown.",
                      "example": 0.1
                    }
                  }
                },
                "examples": {
                  "invalid_email": {
                    "summary": "Invalid email",
                    "value": {
                      "email": "test@gmail.com",
                      "status": "invalid",
                      "mx_record": "alt4.gmail-smtp-in.l.google.com",
                      "mx_provider": "Google",
                      "credits_charged": 0.1
                    }
                  },
                  "catch_all": {
                    "summary": "Catch-all domain",
                    "value": {
                      "email": "ceo@stripe.com",
                      "status": "catch_all",
                      "mx_record": "aspmx.l.google.com",
                      "mx_provider": "Google",
                      "credits_charged": 0
                    }
                  }
                }
              }
            }
          },
          "400": {
            "description": "Bad request - missing or invalid fields",
            "content": {
              "application/json": {
                "schema": {
                  "type": "object",
                  "properties": {
                    "error": {
                      "type": "string",
                      "example": "Bad Request"
                    },
                    "message": {
                      "type": "string",
                      "example": "first_name is required and must be a non-empty string"
                    },
                    "timestamp": {
                      "type": "string",
                      "format": "date-time",
                      "example": "2026-08-24T09:37:33.225Z"
                    }
                  }
                },
                "example": {
                  "error": "Bad Request",
                  "message": "first_name is required and must be a non-empty string",
                  "timestamp": "2026-08-24T09:37:33.225Z"
                }
              }
            }
          },
          "401": {
            "description": "Unauthorized - missing or invalid API key",
            "content": {
              "application/json": {
                "schema": {
                  "type": "object",
                  "properties": {
                    "error": {
                      "type": "string",
                      "example": "Bad Request"
                    },
                    "message": {
                      "type": "string",
                      "example": "first_name is required and must be a non-empty string"
                    },
                    "timestamp": {
                      "type": "string",
                      "format": "date-time",
                      "example": "2026-08-24T09:37:33.225Z"
                    }
                  }
                },
                "example": {
                  "error": "Unauthorized",
                  "message": "Missing x-api-key header",
                  "timestamp": "2026-08-24T09:37:38.562Z"
                }
              }
            }
          },
          "402": {
            "description": "Insufficient credits",
            "content": {
              "application/json": {
                "schema": {
                  "type": "object",
                  "properties": {
                    "error": {
                      "type": "string",
                      "example": "Bad Request"
                    },
                    "message": {
                      "type": "string",
                      "example": "first_name is required and must be a non-empty string"
                    },
                    "timestamp": {
                      "type": "string",
                      "format": "date-time",
                      "example": "2026-08-24T09:37:33.225Z"
                    }
                  }
                },
                "example": {
                  "error": "Payment Required",
                  "message": "Insufficient credits",
                  "timestamp": "2026-08-24T09:37:40.000Z"
                }
              }
            }
          },
          "500": {
            "description": "Internal server error",
            "content": {
              "application/json": {
                "schema": {
                  "type": "object",
                  "properties": {
                    "error": {
                      "type": "string",
                      "example": "Bad Request"
                    },
                    "message": {
                      "type": "string",
                      "example": "first_name is required and must be a non-empty string"
                    },
                    "timestamp": {
                      "type": "string",
                      "format": "date-time",
                      "example": "2026-08-24T09:37:33.225Z"
                    }
                  }
                }
              }
            }
          }
        }
      }
    }
  },
  "components": {
    "securitySchemes": {
      "ApiKeyAuth": {
        "type": "apiKey",
        "in": "header",
        "name": "x-api-key",
        "description": "Your DropLeads API key for authentication.\n\n**Getting Your API Key:**\n1. Log in to your DropLeads account\n2. Navigate to Settings > API Keys\n3. Click Create API Key\n4. Copy your API key (shown only once)\n"
      }
    }
  }
}
```