Scores one email address 0-100 with a verdict (ok, risky, disposable, undeliverable, inval
Scores one email address 0-100 with a verdict (ok, risky, disposable, undeliverable, invalid) and the evidence under it: every point lost is itemised with the field that proves it. 12,141 disposable domains from two maintained open lists pinned to a commit, 4,897 free providers, 1,018 role names, typo fix (gmial.com > gmail.com), live MX/SPF/DMARC. No SMTP probe, no API key.
5000 (raw units)
price
3
calls / 30d
1
unique payers
2026-09-13
updated
Provider
flat-rate-llm.kikoribera03.workers.dev · discovered, not yet claimed by its owner
Payment (x402 accepts[])
[
{
"scheme": "exact",
"network": "eip155:8453",
"payTo": "0xc210Ea7D5692a6401ADf25BbCB7aCDe9cDB7e9Ff",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "5000",
"maxTimeoutSeconds": 300
},
{
"scheme": "exact",
"network": "eip155:137",
"payTo": "0xc210Ea7D5692a6401ADf25BbCB7aCDe9cDB7e9Ff",
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"amount": "5000",
"maxTimeoutSeconds": 300
},
{
"scheme": "exact",
"network": "eip155:42161",
"payTo": "0xc210Ea7D5692a6401ADf25BbCB7aCDe9cDB7e9Ff",
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"amount": "5000",
"maxTimeoutSeconds": 300
}
]Output schema
{
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"email": "[email protected]"
},
"type": "http"
},
"output": {
"example": {
"didYouMean": "[email protected]",
"disposable": false,
"disposableMatch": null,
"dmarc": null,
"dmarcPolicy": null,
"domain": "gamil.com",
"domainResolves": true,
"email": "[email protected]",
"freeProvider": false,
"hasMx": true,
"local": "sales",
"mx": [
{
"host": "mail.gamil.com",
"priority": 0
}
],
"nullMx": false,
"passMark": 80,
"reasons": [
"looks like a typo of gmail.com",
"\"sales\" is a role mailbox reserved by RFC 2142",
"no DMARC record"
],
"roleAccount": true,
"roleMatch": {
"category": "rfc2142",
"name": "sales",
"source": "RFC 2142"
},
"score": 15,
"scoring": [
{
"check": "typo",
"field": "typo",
"points": -50
},
{
"check": "role mailbox",
"field": "roleMatch",
"points": -30
},
{
"check": "DMARC",
"field": "dmarc",
"points": -5
}
],
"spf": "v=spf1 a mx include:s1394.smtp-spf.sureserver.com -all",
"syntaxValid": true,
"typo": {
"distance": 1,
"suggestion": "gmail.com"
},
"verdict": "risky"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"email": {
"description": "The address to check, e.g. [email protected].",
"type": "string"
}
},
"required": [
"email"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
}Use it
curl
curl "https://flat-rate-llm.kikoribera03.workers.dev/v1/red/email-check" # -> 402 Payment Required, accepts[] lists how to pay # retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid
JavaScript
const res = await fetch("https://flat-rate-llm.kikoribera03.workers.dev/v1/red/email-check");
if (res.status === 402) {
const { accepts } = await res.json();
// pay one of accepts[] via an x402 client, then retry with the payment header
}Python
import httpx
res = httpx.get("https://flat-rate-llm.kikoribera03.workers.dev/v1/red/email-check")
if res.status_code == 402:
accepts = res.json()["accepts"]
# pay one of accepts[] via an x402 client, then retry with the payment headerMachine-readable
Everything on this page is also available as clean JSON at /resources/8049.json, and this resource appears in /discovery/resources and /discovery/search.