Email Validate ($0.006)
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 }…
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
POST https://draconic21-x402-api.onrender.com/v1/email_validate
| Category | Everything else |
|---|---|
| Provider host | draconic21-x402-api.onrender.com |
| Networks | eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 3 from 3 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-10 | valid payment request | 402 | $0.006 | 378 ms |
Example input (from the provider)
{
"body": {
"email": "info@example.com"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$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"
}