Discover / twelvepermissions.com

Twelve Permissions

□ No challenge detected

Twelve NFTs on the XRP Ledger, each one sealing a verified human-to-AI authorization event. Pay in USDC over x402 on Base; the seal is delivered as a directed 0-XRP transfer offer on XRPL within about 30 minutes, carrying your authorization memo on-chain as permanent provenance. The art is deterministic: every mark derives from the SHA-256 of the canonical authorization record, so it can be regenerated from a public generator and compared byte for byte.

x402
Base
Base Sepolia
USDC
Content

Challenge detected: 0 of the last 3 checks
Last checked: 16 Oct, 23:40 UTC
In our index since: 14 Oct 2026

Endpoint

curl -i https://twelvepermissions.com
# 402 Payment Required: pay with an x402 client (USDC on Base),
# 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/twelvepermissions.com

Recent checks

14 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.16 Oct 2026

All 3 checks

When (UTC)	Result	HTTP	Response
16 Oct, 23:40 UTC	No challenge detected	200	124ms
15 Oct, 17:07 UTC	No challenge detected	200	387ms
14 Oct, 08:45 UTC	No challenge detected	200	86ms

Questions

Did our last probe detect a payment challenge?

No. At our last probe on 16 Oct, 23:40 UTC, we detected no payment challenge.

What payment terms does Twelve Permissions advertise?

The listing advertises x402, Base, Base Sepolia and USDC. Check the seller's current payment challenge and authentication requirements before paying.

Where is Twelve Permissions listed?

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

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