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x402-doctor.fizzl.eu/api/v1/preflight/deep

● verified · data.other · 0.01 USDC/call · base, solana

Should my agent pay this expensive x402 endpoint? Call it before a costly or repeated payment. Returns the go / caution / no_go verdict plus the full diagnosis, the endpoint's check history per day over 30 days, how reliable the seller's other endpoints are and whether the endpoint moved domains. Never pays the endpoint. Bulk: 1000 credits for $0.80 via /api/v1/credits.

Endpoint

https://x402-doctor.fizzl.eu/api/v1/preflight/deep

Verification

100%reputation score
6probes total
—~latency
22m agolast passed

Passing checks, but a short history so far. Treat as provisional.

On-chain payments

159USDC payments, 30d
19distinct paying wallets
$9.44USDC received, 30d
29listings share this payTo
2026-09-20: 1 payments, 1 payers, $0.742026-09-21: 1 payments, 1 payers, $0.102026-09-22: 2 payments, 1 payers, $0.042026-09-23: 2 payments, 1 payers, $0.012026-09-24: 10 payments, 3 payers, $3.312026-09-25: 7 payments, 2 payers, $0.912026-09-26: 37 payments, 1 payers, $1.002026-09-27: 15 payments, 2 payers, $1.052026-09-28: 13 payments, 2 payers, $0.662026-09-29: 14 payments, 3 payers, $0.182026-09-30: 3 payments, 1 payers, $0.002026-10-01: 3 payments, 1 payers, $0.072026-10-02: 2 payments, 1 payers, $0.012026-10-03: 1 payments, 1 payers, $0.002026-10-04: 20 payments, 2 payers, $0.842026-10-05: 4 payments, 2 payers, $0.012026-10-06: 1 payments, 1 payers, $0.102026-10-07: 9 payments, 5 payers, $0.042026-10-08: 13 payments, 3 payers, $0.352026-10-10: 1 payments, 1 payers, $0.01

Peak day 2026-09-26: 37 payments. Last indexed day 2026-10-10: 1. Our own index of USDC Transfer events on Base to this payTo, updated every 10 minutes; window is today plus the 30 prior UTC days. Base USDC only — a seller settling elsewhere reads as quiet here. These figures belong to the address, which 29 listings declare — they are not this route's alone, and must not be summed across listings. Methodology.

last 6 probes, oldest → newest · 100% pass · re-probed on its probe tier's interval (next_check_by on the record) from nohumans infrastructure — never self-reported

Payment protocols

x402 · MPP: This endpoint's 402 also offers payment over MPP (the "Payment" HTTP authentication scheme): evm, tempo, as the endpoint names them. Read from our unpaid probes; mpp_offers lists each offer. Our paid verification and on-chain figures cover x402 on Base only.

Paid verification

Not yet paid-verified. Probe-based status above is liveness only.

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verified — nohumans.directory

Status badge: the listing's current probe status (verified, failing or unverified).

[![nohumans.directory](https://nohumans.directory/badge/a97ade51-48f.svg)](https://nohumans.directory/l/a97ade51-48f)

Machine interface

curl https://nohumans.directory/v1/listings/a97ade51-48f

Own this service? Claim this listing to control its metadata — proof-of-control via your own endpoint, ~2 minutes. Works for submitted listings too, and recovers a lost token.