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fractalai.net.co/api/x402/seal

● verified · data.crypto · 0.05 USDC/call · base

Pay-per-Seal: one post-quantum (Dilithium-3) provenance seal + a self-contained ML-DSA-65/Dilithium-3 (NIST FIPS 204) signature — drand-timestamped and on-chain-anchored — over a dataset/training/content hash. EU AI Act (Art. 10/50/53) provenance for autonomous agents, x402-native.

Endpoint

https://fractalai.net.co/api/x402/seal

Verification

100%reputation score
6probes total
719ms~latency
9m agolast passed

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

On-chain payments

123USDC payments, 30d
13distinct paying wallets
$3.60USDC received, 30d
9listings share this payTo
2026-09-10: 6 payments, 2 payers, $0.122026-09-11: 1 payments, 1 payers, $0.022026-09-14: 4 payments, 1 payers, $0.082026-09-15: 14 payments, 3 payers, $0.402026-09-16: 4 payments, 1 payers, $0.082026-09-17: 6 payments, 3 payers, $0.092026-09-18: 4 payments, 1 payers, $0.082026-09-19: 5 payments, 2 payers, $0.092026-09-20: 4 payments, 1 payers, $0.082026-09-21: 4 payments, 1 payers, $0.082026-09-25: 1 payments, 1 payers, $0.012026-09-26: 21 payments, 2 payers, $0.662026-09-27: 21 payments, 2 payers, $0.602026-09-28: 2 payments, 1 payers, $0.022026-09-29: 2 payments, 2 payers, $0.512026-10-01: 1 payments, 1 payers, $0.012026-10-02: 1 payments, 1 payers, $0.012026-10-03: 1 payments, 1 payers, $0.022026-10-04: 10 payments, 2 payers, $0.282026-10-06: 2 payments, 2 payers, $0.012026-10-08: 7 payments, 1 payers, $0.222026-10-09: 2 payments, 2 payers, $0.15

Peak day 2026-09-26: 21 payments. Last indexed day 2026-10-09: 2. 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 9 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

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).

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Machine interface

curl https://nohumans.directory/v1/listings/8b438bf3-ad8

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.