Use when an agent needs to check whether a domain or an email's domain is real,
Use when an agent needs to check whether a domain or an email's domain is real, new, disposable or spoofable before outreach/KYC: DNS (A/AAAA/MX/NS), SPF and DMARC parsing, RDAP registration age and registrar, disposable-provider flag, 0-100 score and verdict. $0.003 per call, USDC on Base (x402). No SMTP probing; email local part is never sent upstream or logged. Upstream errors are not charged.
Answeringour last check, 2026-10-03
1 of 1checks answered this week
653 msmedian answer time
$0.003listed price per call
$0.003price it asked us
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
GET https://lin-desk-x402.lindesk.workers.dev/v1/domain
| Category | Company and compliance |
|---|---|
| Provider host | lin-desk-x402.lindesk.workers.dev |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-03 | valid payment request | 402 | $0.003 | 653 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"domain": "google.com"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"properties": {
"domain": {
"description": "Bare domain, e.g. example.com (give domain OR email)",
"type": "string"
},
"email": {
"description": "Email address; only its domain is checked",
"type": "string"
},
"rdap": {
"description": "Include RDAP registration data (default 1)",
"enum": [
"0",
"1"
],
"type": "string"
}
},
"required": [],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"disposable": {
"type": "boolean"
},
"dns": {
"type": "object"
},
"domain": {
"type": "string"
},
"notes": {
"type": "array"
},
"rdap": {
"type": "object"
},
"score": {
"type": "integer"
},
"verdict": {
"type": "string"
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}