{
  "x402Version": 2,
  "id": 36078,
  "slug": "36078",
  "resource": "https://draconic21-x402-api.onrender.com/v1/email_validate",
  "description": "Email Validate ($0.006): syntax + live MX/A-fallback deliverability + disposable-domain + role-address + free-webmail-provider + SPF/DMARC, with no third-party validation vendor at all -- syntax is RFC 5321/5322 grammar, MX/A/SPF/DMARC are live DNS via this server's own resolver (the same protocol-level sourcing as domain_intel), and disposable-domain detection is a static self-maintained list. Never opens an SMTP connection to the mailbox or confirms one specific inbox exists. Body { email }…",
  "type": "http",
  "serviceName": "d21 email_validate",
  "resourceType": "Security",
  "accepts": [
    {
      "scheme": "exact",
      "network": "eip155:8453",
      "payTo": "0x1520Ef5530AA71350049BE2903Cf078B38c40AE5",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "amount": "6000",
      "amountUsd": 0.006,
      "maxTimeoutSeconds": 300
    },
    {
      "scheme": "exact",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "6mc4GhWFyNcMh7gAVDWrKeYjDqFtEKWKQuZ9RTw2VkfM",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "amount": "6000",
      "amountUsd": 0.006,
      "maxTimeoutSeconds": 300
    }
  ],
  "outputSchema": {
    "properties": {
      "example": {
        "properties": {
          "caveats": {
            "items": {
              "type": "string"
            },
            "type": "array"
          },
          "disposable": {
            "type": [
              "boolean",
              "null"
            ]
          },
          "dmarc_policy": {
            "type": [
              "string",
              "null"
            ]
          },
          "dmarc_present": {
            "type": [
              "boolean",
              "null"
            ]
          },
          "domain": {
            "type": "string"
          },
          "domain_exists": {
            "type": [
              "boolean",
              "null"
            ]
          },
          "email": {
            "type": "string"
          },
          "free_provider": {
            "type": [
              "boolean",
              "null"
            ]
          },
          "has_mx": {
            "type": [
              "boolean",
              "null"
            ]
          },
          "mx": {
            "items": {
              "properties": {
                "exchange": {
                  "type": "string"
                },
                "priority": {
                  "type": "number"
                }
              },
              "type": "object"
            },
            "type": "array"
          },
          "reason": {
            "type": "string"
          },
          "role_address": {
            "type": [
              "boolean",
              "null"
            ]
          },
          "spf_present": {
            "type": [
              "boolean",
              "null"
            ]
          },
          "valid_syntax": {
            "type": "boolean"
          },
          "verdict": {
            "enum": [
              "deliverable",
              "risky",
              "undeliverable"
            ],
            "type": "string"
          }
        },
        "required": [
          "email",
          "valid_syntax",
          "verdict",
          "reason",
          "caveats"
        ],
        "type": "object"
      },
      "type": {
        "type": "string"
      }
    },
    "required": [
      "type"
    ],
    "type": "object"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "email": "info@example.com"
          },
          "bodyType": "json",
          "method": "POST",
          "type": "http"
        },
        "output": {
          "example": {
            "caveats": [
              "This never opens an SMTP connection to the mailbox and never confirms a specific inbox exi…"
            ],
            "disposable": false,
            "dmarc_policy": null,
            "dmarc_present": false,
            "domain": "example.com",
            "domain_exists": true,
            "email": "info@example.com",
            "free_provider": false,
            "has_mx": false,
            "mx": [],
            "reason": "domain has no MX records; falls back to its A/AAAA record (RFC 5321 implicit MX) -- mail d…",
            "role_address": true,
            "spf_present": false,
            "valid_syntax": true,
            "verdict": "risky"
          },
          "type": "json"
        }
      },
      "schema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "input": {
            "additionalProperties": false,
            "properties": {
              "body": {
                "additionalProperties": true,
                "properties": {
                  "email": {
                    "description": "Email address to validate, e.g. 'info@example.com'.",
                    "type": "string"
                  }
                },
                "required": [],
                "type": "object"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              },
              "method": {
                "enum": [
                  "POST"
                ],
                "type": "string"
              },
              "type": {
                "const": "http",
                "type": "string"
              }
            },
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "type": "object"
          },
          "output": {
            "properties": {
              "example": {
                "properties": {
                  "caveats": {
                    "items": {
                      "type": "string"
                    },
                    "type": "array"
                  },
                  "disposable": {
                    "type": [
                      "boolean",
                      "null"
                    ]
                  },
                  "dmarc_policy": {
                    "type": [
                      "string",
                      "null"
                    ]
                  },
                  "dmarc_present": {
                    "type": [
                      "boolean",
                      "null"
                    ]
                  },
                  "domain": {
                    "type": "string"
                  },
                  "domain_exists": {
                    "type": [
                      "boolean",
                      "null"
                    ]
                  },
                  "email": {
                    "type": "string"
                  },
                  "free_provider": {
                    "type": [
                      "boolean",
                      "null"
                    ]
                  },
                  "has_mx": {
                    "type": [
                      "boolean",
                      "null"
                    ]
                  },
                  "mx": {
                    "items": {
                      "properties": {
                        "exchange": {
                          "type": "string"
                        },
                        "priority": {
                          "type": "number"
                        }
                      },
                      "type": "object"
                    },
                    "type": "array"
                  },
                  "reason": {
                    "type": "string"
                  },
                  "role_address": {
                    "type": [
                      "boolean",
                      "null"
                    ]
                  },
                  "spf_present": {
                    "type": [
                      "boolean",
                      "null"
                    ]
                  },
                  "valid_syntax": {
                    "type": "boolean"
                  },
                  "verdict": {
                    "enum": [
                      "deliverable",
                      "risky",
                      "undeliverable"
                    ],
                    "type": "string"
                  }
                },
                "required": [
                  "email",
                  "valid_syntax",
                  "verdict",
                  "reason",
                  "caveats"
                ],
                "type": "object"
              },
              "type": {
                "type": "string"
              }
            },
            "required": [
              "type"
            ],
            "type": "object"
          }
        },
        "required": [
          "input"
        ],
        "type": "object"
      }
    }
  },
  "tags": [
    "email-validation",
    "email-verification",
    "mx-lookup",
    "disposable-email",
    "deliverability",
    "bazaar"
  ],
  "sourceHost": "draconic21-x402-api.onrender.com",
  "lastUpdated": "2026-10-09T00:02:40.476Z",
  "quality": {
    "calls30d": 3,
    "uniquePayers30d": 3,
    "lastCalledAt": "2026-10-09T00:02:40.121Z"
  },
  "metadata": {
    "serviceName": "d21 email_validate",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "email": "info@example.com"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "caveats": [
                "This never opens an SMTP connection to the mailbox and never confirms a specific inbox exi…"
              ],
              "disposable": false,
              "dmarc_policy": null,
              "dmarc_present": false,
              "domain": "example.com",
              "domain_exists": true,
              "email": "info@example.com",
              "free_provider": false,
              "has_mx": false,
              "mx": [],
              "reason": "domain has no MX records; falls back to its A/AAAA record (RFC 5321 implicit MX) -- mail d…",
              "role_address": true,
              "spf_present": false,
              "valid_syntax": true,
              "verdict": "risky"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "additionalProperties": true,
                  "properties": {
                    "email": {
                      "description": "Email address to validate, e.g. 'info@example.com'.",
                      "type": "string"
                    }
                  },
                  "required": [],
                  "type": "object"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "caveats": {
                      "items": {
                        "type": "string"
                      },
                      "type": "array"
                    },
                    "disposable": {
                      "type": [
                        "boolean",
                        "null"
                      ]
                    },
                    "dmarc_policy": {
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "dmarc_present": {
                      "type": [
                        "boolean",
                        "null"
                      ]
                    },
                    "domain": {
                      "type": "string"
                    },
                    "domain_exists": {
                      "type": [
                        "boolean",
                        "null"
                      ]
                    },
                    "email": {
                      "type": "string"
                    },
                    "free_provider": {
                      "type": [
                        "boolean",
                        "null"
                      ]
                    },
                    "has_mx": {
                      "type": [
                        "boolean",
                        "null"
                      ]
                    },
                    "mx": {
                      "items": {
                        "properties": {
                          "exchange": {
                            "type": "string"
                          },
                          "priority": {
                            "type": "number"
                          }
                        },
                        "type": "object"
                      },
                      "type": "array"
                    },
                    "reason": {
                      "type": "string"
                    },
                    "role_address": {
                      "type": [
                        "boolean",
                        "null"
                      ]
                    },
                    "spf_present": {
                      "type": [
                        "boolean",
                        "null"
                      ]
                    },
                    "valid_syntax": {
                      "type": "boolean"
                    },
                    "verdict": {
                      "enum": [
                        "deliverable",
                        "risky",
                        "undeliverable"
                      ],
                      "type": "string"
                    }
                  },
                  "required": [
                    "email",
                    "valid_syntax",
                    "verdict",
                    "reason",
                    "caveats"
                  ],
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    }
  },
  "liveness": {
    "reliability": null
  },
  "verified": false,
  "featured": false,
  "provider": {
    "host": "draconic21-x402-api.onrender.com",
    "manifest_name": "draconic21-x402-api.onrender.com",
    "source": "cdp-mirror",
    "source_manifest_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
    "submitted_at": "2026-10-14T01:15:01.050Z"
  },
  "exampleResponse": {
    "example": {
      "caveats": [
        "string"
      ],
      "disposable": true,
      "dmarc_policy": "string",
      "dmarc_present": true,
      "domain": "string",
      "domain_exists": true,
      "email": "string",
      "free_provider": true,
      "has_mx": true,
      "mx": [
        {
          "exchange": "string",
          "priority": 0
        }
      ],
      "reason": "string",
      "role_address": true,
      "spf_present": true,
      "valid_syntax": true,
      "verdict": "deliverable"
    },
    "type": "string"
  }
}