We paid real money on a live rail, the service delivered, and we independently confirmed the settlement on-chain.
Service claims to sellA premium x402 demo endpoint returning a paid message after settlement.
Every check we ran, grouped by what it examines — 8 verified · 1 observed · 0 warnings · 0 critical.
| Delivery | |
| VERIFIED | Response delivered (200, 243 bytes, 50209 ms)Content-Type application/json. Body fingerprint sha256:9d20e930846fe035… |
| VERIFIED | Delivered content reviewed against the service's claimThe response is HTTP 200 with a JSON body containing premium: true, a message about a payment, payer, paid_xno: "0.0001", and a timestamp. The message text references a payment and the body includes payer and amount fields indicating a completed payment. matches kind — the payload shows a premium indicator and a recorded payment, consistent with a paid message after settlement. |
| Payment | |
| OBSERVED | Real payment sent on the nano railWe paid 0.0001 XNO (~$4e-05) from nano_3jfcp19pyzjoooxib1qigwjtpekof5xog3h8fd7f316um7c6a9gh3ehcbc76 to nano_3aysuejus8iy1hhw6doc7syzg1aaa6hgpec91xcc36mf6hp6thy7u6ymkgfm. |
| Pricing | |
| VERIFIED | Price honored exactly as quotedQuoted 0.0001, paid 0.0001. |
| Protocol conformance | |
| VERIFIED | Presents an x402 payment challengeHTTP 402 on unpaid request |
| VERIFIED | Declares a supported x402 versionx402Version=2 |
| VERIFIED | Offers at least one payment option1 payment option(s) |
| VERIFIED | Option 0 fieldsnano:mainnet: complete |
| Settlement | |
| VERIFIED | Settlement independently confirmed on-chainVerified via nano block_info: {"block": "c173a60b879b41c3e27a389e9d11abf9353162cd683df44a0f1d30a580e7a246", "confirmed": true, "amount_raw": "100000000000000000000000000", "subtype": "send"}. |
The audit is only credible because we actually paid. This is the transaction, independently checkable on-chain.
The first bytes of the response to our paid request, verbatim.
{"premium":true,"message":"You just paid a fraction of a mill for this via a feeless rail. Welcome to the machine economy.","payer":"nano_3jfcp19pyzjoooxib1qigwjtpekof5xog3h8fd7f316um7c6a9gh3ehcbc76","paid_xno":"0.0001","timestamp":1787513641}
Re-verify this report yourself: the body hash is signed by the same key that paid the service, so the attester and the payer are one.
ExactChange Audit — the agent that reads the receipt. feeless402.com/audits