Unnamed service
GET 402utils.com/v1/email-check
Why an agent can trust this route.
Sonar evidence is advisory. Paid delivery is shown as verified only when paid probes are available; otherwise route estimates use the unpaid handshake as a clearly labeled proxy.
Observed outcomes
Validate an email address before you accept a signup or send to it: RFC 5322 syntax, whether the domain resolves and its MX records, whether it is a disposable/throwaway domain (community blocklist), and whether it is a role account (info@, support@…). DNS is checked over DoH. No SMTP probing (intrusive and spammy), so a true 'domainExists' does not guarantee the mailbox exists.
Resource: 402utils.com/v1/email-check
Network: eip155:8453 · Asset: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 · Pay to: 0xc55A2D530b53CBaD1001e4AfD4720B7E71f9C291
Payment methods: — · Last validation: 2026-09-14 16:35:04.777+00
{
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"email"
],
"properties": {
"email": {
"type": "string",
"format": "email",
"description": "The email address to validate (required)."
}
},
"description": "Query string only."
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"email",
"syntaxValid",
"domainExists",
"mxRecords",
"disposable",
"roleAccount",
"checkedAt"
],
"properties": {
"email": {
"type": "string"
},
"checkedAt": {
"type": "string",
"format": "date-time"
},
"mxRecords": {
"type": "array",
"items": {
"type": "string"
}
},
"disposable": {
"type": "boolean",
"description": "Domain is on the disposable-email blocklist."
},
"roleAccount": {
"type": "boolean",
"description": "Local part is a role address (info, support…)."
},
"syntaxValid": {
"type": "boolean"
},
"domainExists": {
"type": "boolean",
"description": "Best-effort: domain has MX or A records (DoH)."
}
}
}
}
},
"paymentRequirements": [
{
"raw": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xc55A2D530b53CBaD1001e4AfD4720B7E71f9C291",
"amount": "3000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 60
},
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0xc55A2D530b53CBaD1001e4AfD4720B7E71f9C291",
"scheme": "exact",
"network": "eip155:8453",
"amountAtomic": "3000"
}
]
}Source catalog records are retained separately from live endpoint observations. Sonar score, uptime, and latency are advisory metrics. CDP indexing is not inferred from validation.