Email Verification SMTP
Email verification: checks whether an email address really exists by asking its mail server (SMTP RCPT TO probe; no email is sent), on top of syntax, MX, disposable and role checks. Returns status deliverable, undeliverable (mailbox does not exist), catch_all (domain accepts any address), risky (disposable or mailbox full) or unknown (greylisting, server refused the check), plus the raw SMTP reply. Use it before sending outreach, to clean lead lists or to block fake sign-ups.
Offering
- Provider
- agentsvc.io
- Method
- POST
- Offering type
- Api Endpoint
- Transport type
- http
- Category
- Security
- Delivery
- Not provided
- Pricing model
- Not provided
- x402 version
- 2
Endpoint context
- URL
https://agentsvc.io/api/v1/proxy/email-verify- MIME type
- application/json
- First seen
- 2026-10-16T01:50:32.458Z
- Last seen
- Tags
- email-verification, email-verify, email-finder, Email, deliverability
Payment pricing
x402 payment terms are the authoritative price for calling this endpoint.
- Payment option 1
- 0.002 USDC
Atomic price: 2000 · Network: eip155:8453 · Asset: USDC · Scheme: exact - Payment option 2
- 0.002 USDC
Atomic price: 2000 · Network: solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · Asset: USDC · Scheme: exact - Payment option 3
- 0.002 USDC
Atomic price: 2000 · Network: eip155:137 · Asset: USDC · Scheme: exact - Payment option 4
- 0.002 USDC
Atomic price: 2000 · Network: eip155:42161 · Asset: USDC · Scheme: exact
Raw x402 terms
[
{
"scheme": "exact",
"network": "eip155:8453",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "2000",
"payTo": "0x622efA6Ceb83a5b6EdBC931332f4db68B7f74F27"
},
{
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"amount": "2000",
"payTo": "5JzPS5qpEwUM1vTC9GG7uqvwJdHzbEwfoPHf2Ki977tg"
},
{
"scheme": "exact",
"network": "eip155:137",
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"amount": "2000",
"payTo": "0x622efA6Ceb83a5b6EdBC931332f4db68B7f74F27"
},
{
"scheme": "exact",
"network": "eip155:42161",
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"amount": "2000",
"payTo": "0x622efA6Ceb83a5b6EdBC931332f4db68B7f74F27"
}
]Observed health
- Status
- Healthy
- Latest latency
- 321 ms
- Average latency
- 510 ms
- HTTP status
- 204
- Last checked
- Reachability
- 100% over 12 checks
Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.
Input schema
{
"type": "object",
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"type": "string",
"enum": [
"POST",
"PUT",
"PATCH"
]
},
"bodyType": {
"type": "string",
"enum": [
"json",
"form-data",
"text"
]
},
"body": {
"properties": {
"email": {
"type": "string",
"format": "email",
"description": "Email address to verify"
}
},
"required": [
"email"
]
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"additionalProperties": false
}Output schema
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"email": {
"description": "Email address to verify",
"format": "email",
"type": "string"
}
},
"required": [
"email"
]
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"data": {
"properties": {
"checked_at": {
"type": "string"
},
"deliverable": {
"type": "boolean"
},
"domain": {
"type": "string"
},
"email": {
"type": "string"
},
"format_valid": {
"type": "boolean"
},
"is_catch_all": {
"type": [
"boolean",
"null"
]
},
"is_disposable": {
"type": "boolean"
},
"is_free_provider": {
"type": "boolean"
},
"is_role_address": {
"type": "boolean"
},
"mx_records": {
"items": {
"type": "string"
},
"type": "array"
},
"note": {
"type": "string"
},
"reason": {
"type": "string"
},
"smtp": {
"properties": {
"catch_all_code": {
"type": "integer"
},
"catch_all_session": {
"type": "string"
},
"code": {
"type": "integer"
},
"message": {
"type": "string"
},
"mx": {
"type": "string"
}
},
"type": "object"
},
"status": {
"enum": [
"deliverable",
"undeliverable",
"catch_all",
"risky",
"unknown"
],
"type": "string"
}
},
"required": [
"email",
"status",
"deliverable",
"reason"
],
"type": "object"
},
"success": {
"type": "boolean"
}
},
"required": [
"success",
"data"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}