x402 census · api.mailsecuritytools.com · 170e4d737a06 · JSON
GET /v1/score
live
Grade a domain's email security: SPF, DMARC, DKIM and MX score. $0.01 USDC on Base per call. Returns a 0-100 score and A-F grade (SPF 30, DMARC 40, DKIM 25, MX 5) from live DNS, with findings and the top 3 fixes. Bad input 400, unknown domain 404, not charged. Don't use this for the exact records to publish; use /v1/fix-plan.
Verdict: live. The unpaid GET reached a valid 402. The live amount equals the catalog price.
Facts from the catalogs
| Field | Value |
|---|---|
| URL | https://api.mailsecuritytools.com/v1/score |
| Method | GET |
| Price | $0.01 USDC = 10000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 |
| Network | eip155:8453 (base) |
| payTo | 0x2dAF658B01e257206375798a15832E9f547D65dD |
| Seller | api.mailsecuritytools.com |
| Catalogs | cdp (row updated 2026-10-24), payai (row updated 2026-10-24) |
| Listed since (lower bound) | 2026-10-24 (earliest catalog timestamp; catalogs report last-update times only) |
| Last catalog update | 2026-10-24 |
| CDP quality counters | 4 calls and 3 unique payers in 30 days, last call 2026-10-24 (catalog-reported, not verified on chain) |
| Category (keyword rule) | domains/dns |
| Templated path | no |
| x402Version in catalog | 2 |
| Service name / tags | Mail Security Tools · email-security-score, dmarc-check, spf-check, dkim-check, domain-grade |
Unpaid probe (census of 2026-10-22)
| Field | Value |
|---|---|
| Probed at | 2026-10-22T00:34:27.199Z |
| HEAD | 400 |
| GET | 402 |
| Verdict | live live: valid 402 to an unpaid GET |
| 402 carried in | header |
| x402Version in the 402 | 2 |
| accepts[0] | {"scheme":"exact","network":"eip155:8453","amount":"10000","payTo":"0x2dAF658B01e257206375798a15832E9f547D65dD","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","maxTimeoutSeconds":120,"extra":{"name":"USD Coin","version":"2"}} |
| Live amount equals catalog price | yes |
| Live payTo equals catalog payTo | yes |
| extensions.bazaar in the 402 | yes |
| PAYMENT-REQUIRED header | yes |
| WWW-Authenticate offer | none |
| Content type / server / CORS | application/json / cloudflare / * |
| Latency | 324 ms |
| Error | Payment required |
No hourly re-probe has reached this resource yet; the cron covers a rotating slice of 150 per hour.
On-chain facts for the payTo (public address)
| Field | Value |
|---|---|
| Settlement history | unresolved: payTo not seen in the payer forensics (180 wallets' outbound history) or the Blockscout sample |
Declared input and output (extensions.bazaar)
{
"input": {
"method": "GET",
"queryParams": {
"domain": "example.com"
},
"type": "http"
},
"output": {
"type": "json",
"example": {
"domain": "example.com",
"findings": [
{
"area": "dmarc",
"fix": "Move to p=quarantine, then p=reject.",
"points": 15,
"severity": "warn",
"title": "DMARC p=none (monitor only)"
}
],
"grade": "C",
"report": "email_security_score",
"score": 72,
"top_fixes": []
}
}
}
Try it (unpaid: shows the 402)
curl -si -X GET 'https://api.mailsecuritytools.com/v1/score' -H 'accept: application/json'
The catalog declares GET. A 402 answer carries the payment requirements in the JSON body and, for x402 v2, base64 in the PAYMENT-REQUIRED header. This page never sends a payment.
Paid checks (x402, USDC on Base)
GET https://bazaar.agentexchange.work/r/170e4d737a06/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"170e4d737a06"} places this resource at the top of the report and search pages for 30 days for $1.00, labelled. Unpaid requests answer 402 with the terms. Pricing.
Catalog references: PayAI listing status · agentic.market (CDP Bazaar front end) · this record as JSON · all resources on api.mailsecuritytools.com.