x402 Email Validate
Email validation for <email>
The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.
Live 402 challenge
Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.
{
"trust": "https://cyberwarex.com/trust",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x058D0Cc5CC97e61e8A9f38D6d6365bce525921B2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"catalog": {
"docs": "https://cyberwarex.com/llms.txt",
"services": "https://cyberwarex.com/.well-known/x402"
},
"resource": {
"url": "https://validate.cyberwarex.com/validate",
"tags": [
"email-validation",
"deliverability",
"mx-lookup",
"disposable-email",
"lead-scrubbing"
],
"iconUrl": "https://cyberwarex.com/assets/icon.png",
"mimeType": "application/json",
"description": "Email address validation and deliverability scoring. Checks syntax, normalizes the address (including IDN and punycode), resolves live MX records and identifies the mailbox provider, and flags disposable throwaway domains, role accounts (info@, sales@) and free providers. Suggests a correction for likely typo domains and returns a 0 to 1 confidence score plus a deliverable / risky / invalid verdict. Use it to clean a signup form, scrub a lead list, or block junk registrations.",
"serviceName": "x402 Email Validate"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"email": "sales@acme-robotics.com"
}
},
"output": {
"type": "json",
"example": {
"email": "sales@acme-robotics.com",
"score": 0.8,
"valid": true,
"domain": "acme-robotics.com",
"has_mx": true,
"verdict": "risky",
"original": "Sales@Acme-Robotics.com",
"disposable": false,
"local_part": "sales",
"mx_records": [
"aspmx.l.google.com",
"alt1.aspmx.l.google.com"
],
"normalized": "sales@acme-robotics.com",
"ascii_email": "sales@acme-robotics.com",
"deliverable": true,
"mx_provider": "google",
"ascii_domain": "acme-robotics.com",
"did_you_mean": null,
"role_account": true,
"valid_syntax": true,
"free_provider": false,
"is_normalized": true
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"email"
],
"properties": {
"email": {
"type": "string",
"format": "email",
"description": "Email address to validate, e.g. sales@acme-robotics.com."
}
},
"additionalProperties": false
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"properties": {
"email": {
"type": "string"
},
"score": {
"type": "number",
"description": "Deliverability confidence, 0 to 1."
},
"valid": {
"type": "boolean"
},
"domain": {
"type": "string"
},
"has_mx": {
"type": "boolean"
},
"verdict": {
"enum": [
"deliverable",
"risky",
"invalid"
],
"type": "string"
},
"original": {
"type": "string",
"description": "Address exactly as submitted."
},
"disposable": {
"type": "boolean",
"description": "True for throwaway / temporary-inbox domains."
},
"local_part": {
"type": "string"
},
"mx_records": {
"type": "array",
"items": {
"type": "string"
}
},
"normalized": {
"type": "string"
},
"ascii_email": {
"type": "string"
},
"deliverable": {
"type": "boolean",
"description": "True when syntax is valid and the domain has live MX records."
},
"mx_provider": {
"type": [
"string",
"null"
],
"description": "Detected mailbox provider, e.g. google, microsoft."
},
"ascii_domain": {
"type": "string",
"description": "Punycode form for IDN domains."
},
"did_you_mean": {
"type": [
"string",
"null"
],
"description": "Suggested correction for a likely typo domain."
},
"role_account": {
"type": "boolean",
"description": "True for role addresses like info@, sales@, support@."
},
"valid_syntax": {
"type": "boolean"
},
"free_provider": {
"type": "boolean"
},
"is_normalized": {
"type": "boolean"
}
}
}
}
}
}
}
}
},
"free_trial": {
"how": "repeat this exact request with header `X-Free-Trial: 1` (or `?free_trial=1`) and no payment; you get the real result",
"terms": "per client IP per UTC day; automated monitors/crawlers/indexers are excluded; shared daily pool per service",
"calls_per_ip_per_day": 3
},
"quickstart": {
"docs": "https://cyberwarex.com/llms.txt",
"node": "npm i x402-fetch viem | import {wrapFetchWithPayment} from 'x402-fetch'; import {privateKeyToAccount} from 'viem/accounts'; const f = wrapFetchWithPayment(fetch, privateKeyToAccount(PK)); const r = await f(URL)",
"python": "pip install x402 eth-account | from x402.clients.requests import x402_requests; from eth_account import Account; s = x402_requests(Account.from_key(PK)); r = s.get(URL)",
"pay_with": "USDC on Base (eip155:8453); `accepts[0].amount` is in 6-decimal units (3000 = $0.003)",
"prepaid_credits": "POST /subscribe {\"usd\": 5} on any cyberwarex host -> X-Subscription-Key (+10% bonus, one key works suite-wide, no per-call signing)"
},
"x402Version": 2
}Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
Pay 0.05 USDC on Base to 0x058D…921B2. The signed payment is good for 5 minutes.
- Paid to
- 0x058D…921B2
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 50000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x058D0Cc5CC97e61e8A9f38D6d6365bce525921B2",
"amount": "50000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"email": "test@example.com"
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"properties": {
"email": {
"type": "string"
}
}
}
},
"additionalProperties": false
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-08-23 16:23Z
- Last indexed by Roundhouse
- 2026-09-22 16:00Z
- Last enriched (probe, favicon, geo)
- 2026-09-24 12:45Z
- x402 version
- 2
- Max timeout
- 300s
- Liveness probe
- HTTP 402
Hand this page to an agent
Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.
GET api.roundhouseai.io/v0/endpoints
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 30 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service x402 Email Validate and tell me whether it is worth paying: what a call costs, whether the endpoint answered when last probed, and what its payment record actually shows. curl -s 'https://api.roundhouseai.io/v0/endpoints?q=x402%20Email%20Validate' curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>' Then call it: read the price from the live 402 at https://validate.cyberwarex.com/validate, never from a cached figure, and pay with an x402 client. The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except /v0/unified* and /v0/endpoints. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402, or use an organization key from https://roundhouseai.io/dashboard/team. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.