402sentinel.com
Base · payout 0x1a9fa76f5b420e85de147c4419638bebe64d6de5
Answers HTTP 402
2 of 3 probed endpoints answered HTTP 402 with a parseable payment payload
checked 2026-09-25
Method: one unpaid request per listed endpoint. A 402 with a payment payload a client could parse counts. Nothing is paid.
x402-style payments, last 7 days (Base)
8 x402-style payments from 1 distinct payer, $0.11 USDC in the last 7 days (Base, exact read)
window ended 2026-10-05
- Payments
- 8
- Outside payers
- 1
- USDC
- 0.11
This window shows the pattern of machine noise (few payers, dust amounts), so it does not count toward the evidence ranking.
All USDC received at this payout address: $0.11 (includes payments that are not x402)
Method: counted when the transaction carries a signed USDC authorization (EIP-3009), the settlement x402's exact scheme uses. Some non-x402 gasless sends use it too.
Reading: x402-style payments to this payout address on Base, exact read of the 7 days to 2026-10-05, every block of the window: counted when the transaction carries a signed USDC authorization (EIP-3009), the settlement x402's `exact` scheme uses. Some non-x402 gasless sends use it too; Sato Hub's own payer wallets are left out
Delivery is not measured. We never send a payment, so we never observe what a paid call returns. Unknown means we hold no reading, not that anything failed.
Chains · one payout address, each chain read on its own
| Chain | Payout address | Listings | Answers 402 | x402-style payments |
|---|---|---|---|---|
| Base | 0x1a9fa76f5b420e85de147c4419638bebe64d6de5 | 7 | 2 of 3 probed endpoints answered HTTP 402 with a parseable payment payload 2026-09-25 | 8 x402-style payments from 1 distinct payer, $0.11 USDC in the last 7 days (Base, exact read) |
- Hosts
- 402sentinel.com
- Listings
- 7 registered in the x402 catalogue
- Price range
- $0.0020 to $0.020 per call, as registered
- Categories (auto)
- Security (5), Market data (1), Other (1)
- First seen
- 2026-10-05 · last seen 2026-10-05
Claim this merchant
Sign a message from the payout address 0x1a9fa7…4d6de5 to claim this page or download its payment ledger. Claiming proves control of the payout key. It says nothing about the service behind the address, and it does not change how this merchant is ranked. No email, no account: the signature is the whole credential, and signing a message costs no gas and moves nothing.
Registrations · 7
| Endpoint | Chain | Category | Price | Catalogue date |
|---|---|---|---|---|
https://402sentinel.com/api/assess Assess an x402 counterparty before paying. POST {target:{payto_address}, payment_context?, policy?}; payto may be a 0x EVM (Base) or base58 Solana seller. Returns risk_score 0-100, decision allow/review/block, confidenc… | Base | Security | $0.002 | 2026-09-30 |
https://402sentinel.com/api/firewall Buyer-side payment firewall: should THIS agent make THIS payment now? Where /api/assess vets the seller, this vets the payment against your own agent's behaviour. POST {agent_id, payment:{payto_address,amount,resource_u… | Base | Security | $0.002 | 2026-09-30 |
https://402sentinel.com/api/policy Same input as /api/assess, but returns a trimmed action-oriented view: the allow/limit/deny decision plus a wallet-ready spending policy (max_payment_usdc per-counterparty cap, daily_cap_usdc, add_to_denylist, require_h… | Base | Security | $0.002 | 2026-09-30 |
https://402sentinel.com/api/assess/deep Is this payment address safe to pay? DEEP version — deep counterparty assessment: same shape as /api/assess but scans more on-chain settlement history for higher confidence. POST {target:{payto_address}, payment_context… | Base | Security | $0.02 | 2026-09-30 |
https://402sentinel.com/api/assess/rwa RWA risk gate: score a TOKENIZED ASSET (treasury, stock, credit) BEFORE an agent buys it. POST {target:{payto_address:<token contract>, network:eip155:1|eip155:8453}} returns 0-100 risk, allow/review/block, is_permissio… | Base | Market data | $0.02 | 2026-09-30 |
https://402sentinel.com/api/compliance Pre-pay COMPLIANCE screen for regulated onchain flows. POST {target:{payto_address, agent_id?}, payment_context?:{amount,asset}} returns compliance_decision pass/flag/block, diligence_tier, obligations and checks: OFAC … | Base | Security | $0.02 | 2026-09-30 |
https://402sentinel.com/api/verify Can my x402 service prove it is trustworthy to buyers? 402Sentinel Verified (opt-in trust badge for sellers): deep-audit a service and, if it passes, issue a signed time-boxed 'verified-organic' credential + list it pub… | Base | Other | $0.02 | 2026-09-05 |
Descriptions are the seller’s own words from the catalogue and are not checked by us. A listed price is a registration, not an observed charge.
Data CC-BY-4.0, attribution: data by satohub.ai. Collector run 2026-10-05. Appearing here is not an endorsement. Check an endpoint with the doctor.