← The evidence ledger
Evidence row 74292
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://draconic21-x402-api.onrender.com/v1/email_validate
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- d2c8c055a36868439be9a43c8db01ebbeb7060a5f17e5ebd3c811b560c9884ca
- Leaf
- 0x475eaf4d2a762d7ae0bdda7662fb790ae9f42d010da54a1830146c70d1af7159
What was observed
{
"endpoints": [
[
"x402",
"https://draconic21-x402-api.onrender.com/v1/email_validate"
]
],
"name": "d21 email_validate",
"owner_address": "0x1520ef5530aa71350049be2903cf078b38c40ae5",
"raw": {
"accepts": [
{
"amount": "6000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0x1520Ef5530AA71350049BE2903Cf078B38c40AE5",
"scheme": "exact"
},
{
"amount": "6000",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb"
},
"maxTimeoutSeconds": 300,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "6mc4GhWFyNcMh7gAVDWrKeYjDqFtEKWKQuZ9RTw2VkfM",
"scheme": "exact"
}
],
"description": "Email Validate ($0.006): syntax + live MX/A-fallback deliverability + disposable-domain + role-address + free-webmail-provider + SPF/DMARC, with no third-party validation vendor at all -- syntax is RFC 5321/5322 grammar, MX/A/SPF/DMARC are live DNS via this server's own resolver (the same protocol-level sourcing as domain_intel), and disposable-domain detection is a static self-maintained list. Never opens an SMTP connection to the mailbox or confirms one specific inbox exists. Body { email }…",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"email": "info@example.com"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"caveats": [
"This never opens an SMTP connection to the mailbox and never confirms a specific inbox exi…"
],
"disposable": false,
"dmarc_policy": null,
"dmarc_present": false,
"domain": "example.com",
"domain_exists": true,
"email": "info@example.com",
"free_provider": false,
"has_mx": false,
"mx": [],
"reason": "domain has no MX records; falls back to its A/AAAA record (RFC 5321 implicit MX) -- mail d…",
"role_address": true,
"spf_present": false,
"valid_syntax": true,
"verdict": "risky"
},
"type": "json"
}
},
"schema": {
"$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"
}
}
},
"lastUpdated": "2026-10-19T06:31:14.728Z",
"quality": {
"l30DaysTotalCalls": 4,
"l30DaysUniquePayers": 4,
"lastCalledAt": "2026-10-19T06:31:14.358Z"
},
"resource": "https://draconic21-x402-api.onrender.com/v1/email_validate",
"serviceName": "d21 email_validate",
"tags": [
"email-validation",
"email-verification",
"mx-lookup",
"disposable-email",
"deliverability"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "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 }…"
}What the leaf hashes
{"body":"d2c8c055a36868439be9a43c8db01ebbeb7060a5f17e5ebd3c811b560c9884ca","id":74292,"kind":"listing","method":"baseline/1","observed_us":1793025488725493,"prev":null,"subject":"x402_bazaar:https://draconic21-x402-api.onrender.com/v1/email_validate","subject_kind":"source_record"}Proof
Its day has not closed yet. A day closes ten minutes after midnight UTC; the proof appears here then.