Discover / fractalai.net.co

FractalAI Notary

□ No challenge detected

Pay-per-Attestation: an AI agent pays to seal its own decision (input hash, output, model, timestamp) in FractalAI's post-quantum L1 — Dilithium-3 (NIST FIPS 204) signed, Black-Box chained, on-chain anchored (VAID-1). Returns a re-verifiable receipt. Built for EU AI Act Art.12 record-keeping. x402-native.

Listed price
$0.05
Challenge detected
0 of the last check
Last checked
15 Oct, 00:26 UTC
In our index since
14 Oct 2026

Endpoint

curl -i https://fractalai.net.co/api/x402/attest-decision
# 402 Payment Required: pay with an x402 client (USDC on Arbitrum),
# then send the same request again with the payment attached.

Agents can find it through the Superstables MCP server and JSON API: GET /api/v1/services/fractalai.net.co

Recent checks

15 Oct 2026One bar per check, showing up to 20 recent checks. Coloured bars show relative response time, with a minimum visible height; full-height grey bars mean no challenge was detected. “Challenge detected” means HTTP 402 or another detected payment-challenge signal.15 Oct 2026
All 1 checks
When (UTC)ResultHTTPResponse
15 Oct, 00:26 UTCNo challenge detected418ms

Questions

Did our last probe detect a payment challenge?

No. At our last probe on 15 Oct, 00:26 UTC, we detected no payment challenge.

What price is recorded for FractalAI Notary?

Its listed price is $0.05.

What payment terms does FractalAI Notary advertise?

The listing advertises x402, Arbitrum, Base, EVM chain 42220, EVM chain 480, Polygon and USDC. It names cdp as its facilitator. Check the seller's current payment challenge and authentication requirements before paying.

Where is FractalAI Notary listed?

In x402 Bazaar and x402-list.com. Superstables first indexed it on 14 Oct 2026.

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